hach sc100 controller

Catalog Number 5860018

Hach sc100™ Controller

USER MANUAL

March 2007, Edition 6

© Hach Company, 2003–2007. All rights reserved. Printed in the U.S.A. eac/dp

Visit http://www.hach.com

http://www.hach.com

1

Table of Contents

Section 1 Specifications ............................................................................................................................................... 3

Section 2 General Information ..................................................................................................................................... 52.1 Safety Information ..................................................................................................................................................... 5

2.1.1 Use of Hazard Information ............................................................................................................................... 52.1.2 Precautionary Labels ....................................................................................................................................... 5

2.2 General Product Information ..................................................................................................................................... 5

Section 3 Installation..................................................................................................................................................... 73.1 Mechanical Installation .............................................................................................................................................. 9

3.1.1 Controller Dimension Illustrations .................................................................................................................... 93.1.2 Mounting the Controller.................................................................................................................................. 11

3.2 Wiring Safety Information ........................................................................................................................................ 133.2.1 Electrostatic Discharge (ESD) Considerations............................................................................................... 13

3.3 Electrical Installation................................................................................................................................................ 133.3.1 Installation in Conduit..................................................................................................................................... 143.3.2 Installation Using a Power Cord ..................................................................................................................... 143.3.3 Wiring for Power at the Controller .................................................................................................................. 15

3.4 Alarms and Relays .................................................................................................................................................. 183.4.1 Connecting the Relays ................................................................................................................................... 183.4.2 Connecting the Analog Outputs ..................................................................................................................... 19

3.5 Connecting/Wiring the sc Sensor ............................................................................................................................ 203.5.1 Connecting the sc Sensor in a Non-hazardous Location ............................................................................... 203.5.2 Connecting the sc Sensor to a Controller in a Hazardous Location............................................................... 22

3.6 Wiring the Digital Gateway ...................................................................................................................................... 233.7 Connecting the Optional Digital Output ................................................................................................................... 23

Section 4 Operation..................................................................................................................................................... 274.1 Using the Keypad .................................................................................................................................................... 274.2 Controller Display Features ..................................................................................................................................... 28

4.2.1 Important Key Presses................................................................................................................................... 284.3 System Setup ........................................................................................................................................................ 29

4.3.1 Adjusting Display Contrast ............................................................................................................................. 294.3.2 Specifying the Displayed Language............................................................................................................... 294.2.2 Software Text Abbreviations........................................................................................................................... 294.3.3 Setting the Time and Date ............................................................................................................................. 30

4.4 Setting up System Security ..................................................................................................................................... 314.4.1 Setting the Passcode ..................................................................................................................................... 314.4.2 Editing the Passcode ..................................................................................................................................... 31

4.5 Output Options ........................................................................................................................................................ 324.5.1 Navigating to the Output Options Menu ......................................................................................................... 324.5.2 Hold/Transfer Outputs .................................................................................................................................... 324.5.3 Release Outputs ............................................................................................................................................ 33

4.6 Relay Options .......................................................................................................................................................... 334.6.1 Navigating to the Relay Options Menu........................................................................................................... 33

4.7 Data Event Logging Options.................................................................................................................................... 334.8 Digital Network Options ........................................................................................................................................... 344.9 System Setup Menu ................................................................................................................................................ 344.10 Test/Maint Menu .................................................................................................................................................... 38

Section 5 Maintenance ................................................................................................................................................ 395.1 Cleaning the Controller............................................................................................................................................ 395.2 Fuse Replacement .................................................................................................................................................. 39

2

Table of Contents

Section 6 Replacement Parts and Accessories ........................................................................................................416.1 Replacement Items ..................................................................................................................................................416.2 Accessories..............................................................................................................................................................41

Section 7 Compliance Information .............................................................................................................................43

Section 8 How to Order ...............................................................................................................................................45

Section 9 Repair Service .............................................................................................................................................46

Section 10 Limited Warranty .......................................................................................................................................47

3

Section 1 Specifications

Specifications are subject to change without notice.

Component DescriptionMicroprocessor-controlled measuring unit with measured value display, temperature display, and menu-driven system

Controller Operating Temperature

–20 to 60 °C (–4 to 140 °F); 95% relative humidity, non-condensing with sensor/network card load <7 W; –20 to 40 °C (–4 to 104 °F) with sensor /network card load <25 W

Controller Storage Temperature

–20 to 70 °C (–4 to 158 °F); 95% relative humidity, non-condensing

Enclosure NEMA 4X/IP66 metal enclosure with a corrosion-resistant finish

Power Requirements

AC Powered sc100 model: 100–230 VAC ±10%, 50/60 Hz; Power 15 W with 7 W sensor/network card load, 37 W with 25 W sensor/network card load

24 VDCpowered sc100 model: 24 VDC –15%, +20%; Power 16W with 7W sensor/network card load, 34 W with 25 W sensor/network card load

Pollution Degree/Installation Category

II; II

OutputsTwo (Analog (4–20 mA)) outputs, maximum impedance 500 ohm. Optional digital network connection. IrDA digital connection.

RelaysThree SPDT, user-configured contacts rated 100–230 VAC, 5 Amp resistive maximum for the ac powered sc100 and 24 VDC, 5A resistive maximum for the dc powered sc100.

Controller Dimensions ½ DIN—144 x 144 x 150 mm (5.7 x 5.7 x 5.9 inches)

Controller Weight 1.6 kg (3.5 lb)

CertificationsCE approved (with all sensor types)

Listed for use in general locations to UL and CSA safety standards by ETL (with all sensor types)

Listed for use in Class I, Division 2 hazardous locations to FM & CSA safety standards by ETL (with specified sensor types, per Control Drawing 58600-78

Visit us at www.hach.com

http://www.hach.com

5

Section 2 General Information

2.1 Safety Information

Please read this entire manual before unpacking, setting up, or operating this equipment. Pay attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage to the equipment.

To ensure that the protection provided by this equipment is not impaired, do not use or install this equipment in any manner other than that specified in this manual.

2.1.1 Use of Hazard Information

DANGERIndicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious injury.

CAUTIONIndicates a potentially hazardous situation that may result in minor or moderate injury.

Important Note: Information the requires special emphasis.

Note: Information that supplements points in the main text.

2.1.2 Precautionary Labels

Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed

2.2 General Product Information

The controller enclosure is NEMA4X/IP66-rated and has a corrosion-resistant finish designed to withstand corrosive environmental constituents such as salt spray and hydrogen sulfide. The controller display shows the current reading plus a secondary measurement such as temperature if connected to a single sensor, or two readings with their corresponding secondary measurement readings when two sensors are connected.

Installation instructions for the controller are presented in this manual. If a system with a sensor and a controller has been purchased, complete information for installation and operation is also presented in the sensor system manual.

This symbol, if noted on the instrument, references the instruction manual for operation and/or safety information.

This symbol, when noted on a product enclosure or barrier, indicates that a risk of electrical shock and/or electrocution exists.

This symbol, if noted on the product, indicates the need for protective eye wear.

This symbol, when noted on the product, identifies the location of the connection for Protective Earth (ground).

This symbol, when noted on the product, identifies the location of a fuse or current limiting device.


http://www.hach.com

7

Section 3 Installation

DANGEROnly qualified personnel should conduct the installation tasks described in this section of the manual. This equipment is suitable for use in non-hazardous locations or Class 1, Division 2, Groups A, B, C, D Hazardous Locations with specified sensors and options when installed per the Hazardous Location Installation Control Drawing on page 8. Always refer to the Control Drawing and applicable electrical code regulations for proper installation instructions.

DANGERExplosion hazard. Substitution of components may impair suitability for Class 1, Division 2. Do not replace any component unless power has been switched off and the area is known to be non-hazardous.

Figure 1 Components of a Basic System

1. Controller 6. Lock washer, ¼-inch I.D. (4), Cat. No. 8H1336

2. Mounting foot for panel mounting (2), Cat. No. 1000B4F3222 7. Flat washer, ¼-inch I.D. (4), Cat. No. 8H1346

3. Bracket for panel & pipe mounting, Cat. No. 1000C4F3217-101

8. Pan head screws (4), M6 x 1.0 x 20 mm, Cat. No. 5867400

4. Gasket for panel mounting, Neoprene, Cat. No. 1000A4F3249-101

9. Pan head screws (4), M6 x 1.0 x 100 mm, Cat. No. 5867500

5. Hex nut, M6 (4), Cat. No. 5867300 10. Pan head screws (4), M6 x 1.0 x 150 mm, Cat. No. 5867600

Table 1 Customer-supplied Items

Item

14-AWG wire for electrical power connections in conduit or 115 or 230 V ac power cord plus a NEMA 4X-rated strain relief

High-quality, shielded instrumentation cable for connecting the analog outputs plus a NEMA 4X-rated strain relief.

Mounting hardware for the sensor (available from the manufacturer, order separately). See the sensor manual.

Sun shield for mounting configurations where the sun strikes the front of the display.

Common hand tools

1

3

4

8

5

6

7

9

10

2

sc100

8

Installation

Figure 2 Hazardous Location Installation Control Drawing

HA

CH

CO

MP

AN

Y

OR

9

Installation

3.1 Mechanical Installation

Install in an environment that is protected from corrosive fluids.

3.1.1 Controller Dimension Illustrations

Figure 3 Controller Dimensions

Figure 4 Controller Mounting Dimensions

sc100

144.0 mm (5.67 inches) 150.0 mm (5.91 inches)

144.

0 m

m (

5.67

inch

es)

80.27 mm(3.16 inches)

144.02 mm (5.67 inches)

80.27 mm(3.16 inches)

144.02 mm(5.67 inches)

72.01 mm(2.84 inches)

72.01 mm(2.84 inches)

40.14 mm (1.58 inches) M6 x 1.0

40.14 mm(1.58 inches)

10

Installation

Figure 5 Panel Mount Cut-out Dimensions

Figure 6 Conduit Hole Dimensions

133 mm (5.25 )inches

144 mm (5.67 )inchesref only( )

135 mm(5.31 )inches

144 mm(5.67 )

( )inches

ref only

67.4 mm(2.65 )inches

72 mm(2.835 )inches

ref only( )

66.67 mm (2.625 )inches

75 mm (2.955 )inches(ref only)

6.35 mm (0.25 inch)

15.24 mm (0.60 inch)

28.57 mm (1.125 inches)

75.07 mm (2.955 inches)

127 mm(5.00 inches)

150 mm(5.91 inches)

(ref only)99.31 mm(3.91 inches)

50.8 mm(2.00 inches)

28.57 mm (1.125 inches)

68.96 mm (2.715 inches)

25.4 mm (1.00 inch)

25.4 mm (1.00 inch)

144 mm (5.67 inches)

11

Installation

3.1.2 Mounting the Controller

Attach the controller to a rail or wall or mount it in a panel. Supplied mounting hardware is shown in Figure 7, Figure 8, and Figure 9.

Figure 7 Vertical or Horizontal Pipe Mounting the Controller

Figure 8 Wall Mounting the Controller

1. Controller 4. Flat washer, ¼-inch I.D. (4), Cat. No. 8H1346

2. Pipe (vertical or horizontal) 5. Hex nut, M6 (4), Cat. No. 5867300

3. Bracket, pipe mounting, Cat. No. 1000C4F3217-101 6. Pan head screw, M6 x 1.0 x 100 mm (4), Cat. No. 5867400

1. Controller 4. Pan head screw, M6 x 1.0 x 20 mm (4), Cat. No. 5867400

2. Bracket, Cat. No. 1000C4F3217-101 5. Customer-supplied hardware for wall mounting

3. Lock washer, ¼-inch I.D., Cat. No. 8H1336

3

1 2

45

6

3 4

2

1

5

12

Installation

Figure 9 Panel Mounting the Controller

To remove the sensor connectors before inserting the controller enclosure into the panel cut-out:

1. Disconnect the wires at terminal block J5, see Figure 19 on page 22.

2. Loosen and remove the nut securing the sensor connector inside the enclosure. Remove the sensor connector and wires. Repeat step 1 and 2 for the other sensor connector.

3. After the controller is in place in the panel, reinstall the sensor connectors and reconnect the wiring to terminal J5 as shown in Figure 19 on page 22.

1. Controller 7. Lock washer, ¼-inch I.D., (4) Cat. No. 8H1336

2. Gasket, Neoprene, panel mount, Cat. No. 1000A4F3249-101

8. Hex nut (4), Cat. No. 5867300

3. Panel (maximum thickness is 9.5 mm (3/8 inch)) 9. Flat washer (4), Cat. No. 8H1346

4. Mounting Foot (2), Cat. No. 1000B4F3222 10. Pan head screw, M6 x 1.0 x 150 mm (4), Cat. No. 5867600

5. Mounting bracket, controller, Cat. No. 1000C4F3217-101 11. It may be necessary to remove the sensor connectors. see procedure below.6. Pan head screw (4), Cat. No. 5867400

1 2 3

4

5

6 7

8

11

98

10

13

Installation

3.2 Wiring Safety Information

When making any wiring connections to the sc100 Controller, the following warnings and must be adhered to, as well as, any warnings and notes found throughout the individual installation sections. For more safety information refer to Safety Information on page 5.

DANGERAlways disconnect power to the instrument when any making electrical connections.

3.2.1 Electrostatic Discharge (ESD) Considerations

Important Note: To minimize hazards and ESD risks, maintenance procedures not requiring power to the analyzer should be performed with power removed.

Delicate internal electronic components can be damaged by static electricity, resulting in degraded instrument performance or eventual failure.

The manufacturer recommends taking the following steps to prevent ESD damage to your instrument:

• Before touching any instrument electronic components (such as printed circuit cards and the components on them) discharge static electricity from your body. This can be accomplished by touching an earth-grounded metal surface such as the chassis of an instrument, or a metal conduit or pipe.

• To reduce static build-up, avoid excessive movement. Transport static-sensitive components in anti-static containers or packaging.

• To discharge static electricity from your body and keep it discharged, wear a wrist strap connected by a wire to earth ground.

• Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and work bench pads.

3.3 Electrical Installation

DANGERThis equipment is suitable for use in non-hazardous locations or Class 1, Division 2, Groups A, B, C, D Hazardous Locations with specified sensors and options when installed per the Hazardous Location Installation Control Drawing on page 8. Always refer to the Control Drawing and applicable electrical code regulations for proper installation instructions.

High-voltage wiring for the controller is conducted behind the high voltage barrier in the controller enclosure. The barrier must remain in place unless a qualified installation technician is installing wiring for power, alarms, or relays. See Figure 10 for barrier removal information.

14

Installation

Figure 10 Removing Voltage Barrier

3.3.1 Installation in Conduit

In hard-wired electrical applications, the power and safety ground service drops for the instrument must be 18 to 12 AWG. See Figure 11 on page 14 for strain relief and conduit opening sealing plug information. See section 3.3.3 on page 15 for wiring information.

3.3.2 Installation Using a Power Cord

DANGERUse of a power cord is not acceptable in Class 1, Division 2 Hazardous Location Installation (see Hazardous Location Installation Control Drawing on page 8).

A sealing-type strain relief to maintain the NEMA 4X/IP66 environmental rating and a power cord less than 3 meters (10 feet) in length with three 18-gauge conductors (including a safety ground wire) can be used, see Replacement Parts and Accessories on page 41. See Figure 11 on page 14 for strain relief and conduit opening sealing plug assembly. See section 3.3.3 on page 15 for wiring information.

Figure 11 Using the Optional Strain Relief and Conduit Plug

1. High voltage barrier 2. Unsnap the barrier latch then pull out to remove the barrier.

NCNCNC COMCOMCOM NO

F1

F2

NONO

RELAY CRELAY BRELAY BRELAY ARELAY A

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR

FIELD WIRINGINSULATION MUST

BE RATED TO80° C MINIMUM



DANGER - EXPLOSION HAZARD

DANGER - RISQUE D'EXPLOSION

DO NOT DISCONNECT WHILE CIRCUIT IS LIVEUNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.

NE PAS DEBRANCHER TANT QUE LE EST SOUSTENSION, A MONIS QU'IL NE S'AGISSE D'UN

EMPLACEMENT NON-DANGEROUX

J1

J2

J4

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

S1

NCNCNC COMCOMCOM NO

F1

F2

NONO

RELAY CRELAY BRELAY BRELAY ARELAY A

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR










J1

J2

J4

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

S1

2

1

1. Power cord strain relief 2. Conduit strain relief 3. Conduit opening sealing plug

2 3

15

Installation

3.3.3 Wiring for Power at the Controller

DANGERExplosion hazard. Do not connect or disconnect electrical components or circuits to the equipment unless power has been switched off or the area is known to be non-hazardous.

DANGERDo not connect AC power to a sc100 24 VDC powered model.

The sc100 can be purchased as either an 100–230 VAC powered model or a 24 VDC powered model. Follow the appropriate wiring instructions per the purchased model.

Important Note: A protective earth (PE) ground connection is required by the sc100 for both 100–230 VAC and 24 VDC wiring applications. Failure to connect a good PE ground connection can result in shock hazards and poor performance due to electromagnetic interferences. ALWAYS connect a good PE ground to the sc100 terminal.

The controller can be wired for line power by hard-wiring in conduit or wiring to a power cord. Regardless of the wire used, the connections are made at the same terminals. A local disconnect designed to meet local electrical code is required and must be identified for all types of installation. See Figure 14 and Figure 15 on page 17 for suggested local disconnect configurations.

1. Obtain appropriate fittings with NEMA 4X/IP66 environmental rating.

2. Loosen the screws using a phillips-head screwdriver and open the hinged controller cover.

3. Remove the high-voltage barrier (see Figure 10 on page 14).

4. Insert the wires through the strain relief fitting or conduit hub located in the right-rear access hole in the bottom of the enclosure. Tighten the strain relief if used, to secure the cord.

5. Properly prepare each wire (Figure 12) and insert each wire into the terminal according to Table 2 or Table 3. Tug gently after each insertion to ensure the connection is secure.

6. Seal any unused openings in the controller box with conduit opening sealing plugs.

7. Reinstall the high-voltage barrier and latch to secure.

Figure 12 Proper Wire Preparation and Insertion

1. Strip ¼-inch of insulation. 2. Seat insulation against connector with no bare wire exposed.

16

Installation

The DC power source that supplies power to the 24 VDC powered sc100 must maintain voltage regulation within the specified 24 VDC –15% +20% voltage limits. The DC power source must also provide adequate protection against surges and line transients.

Figure 13 sc100 Wiring Connections

Table 2 AC Power Wiring Information (sc100 AC powered model only)

Terminal Number Terminal Description Wire Color Code for North America Wire Color Code for Europe

1 Hot (L1) Black Brown

2 Neutral (N) White Blue

3 Protective Earth (PE) Green Green w/yellow tracer

Table 3 DC Power Wiring Information (sc100 24 VDC powered model only)

Terminal Number Terminal Description Wire Color Code for North America Wire Color Code for Europe

1 +24 V dc Red Red

2 24 V dc return Black Black

3 Protective Earth (PE) Green Green w/yellow tracer

1. J1—Network connector 8. Sensor connector

2. J2—Header for optional network interface card 9. Sensor connector

3. J5—Relay A connector 10. J6—Analog output (4–20 mA) connector

4. J6—Relay B connector 11. J5—Sensor connector for hard-wiring

5. J7—Relay C connector 12. Position for network interface card

6. Fuses (F1, F2) 13. Service port

7. J8—Power connections 14. Sensor terminator selector/service port configuration

a. AC Power connection (AC powered sc100 model only)

b. DC Power connection (24 VDC sc100 model only)

NCNCNC COMCOMCOM NO

F1

F2

NONO

RELAY CRELAY BRELAY A

J1

J2

J4

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

S1

6

7

7a

7b

14

12

13

31 2

89

4 5

11 10

+2

4V

DC

+2

4V

DC

–2

4V

DC

–2

4V

DC

17

Installation

Figure 14 Local Disconnect for Power Cord

Figure 15 Local Disconnect for Hard-wired Line Power

1. Power terminal 2. Power cord strain relief

1. Power terminal 2. Conduit strain relief

NCNCNC COMCOMCOM NO

F1

F2

NONO

RELAY CRELAY BRELAY BRELAY A

J1

J2

J4

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

S1 1

2

NCNCNC COMCOMCOM NO

F1

F2

NONO

RELAY CRELAY BRELAY BRELAY A

J1

J2

J4

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

S1 1

2

18

Installation

3.4 Alarms and Relays


DANGERFor Class 1, Division 2 Hazardous Location installations, refer to the Control Drawing (Figure 2 on page 8) for permanent connection requirements for the alarm relays.

DANGERExposure to some chemicals may degrade the sealing properties of materials used in the following devices: Relays K1, K2, and K3. Periodic inspection of these devices is recommended to check for degradation.

The controller is equipped with three unpowered relays rated 100–230 VAC, 50/60 Hz, 5 amp resistive maximum. See the sensor manual for relay setup details.

3.4.1 Connecting the Relays

DANGERRelay loads must be resistive. User must externally limit current to the relays to 5 Amps by use of a fuse or breaker.

DANGERPower and relay terminals are designed for only single wire termination. Do not use more than one wire in each terminal.

The relay connector accepts 18–12 AWG wire (as determined by load application). Wire gauge less than 18 AWG is not recommended.

The Normally Open (NO) and Common (COM) relay contacts will be connected when an alarm or other condition is active. The Normally Closed (NC) and Common relay contacts will be connected when an alarm or other condition is inactive or when power is removed from the controller.

AC Line (100–230 V) Powered sc100’sAC line powered sc100 controllers contain three relays designed for connection to AC MAINS circuits (i.e., voltages greater than 30V-RMS, 42.2V-PEAK or 60 V dc). Refer to Figure 16 for connection information. The relay wiring compartment is not designed for voltage connections below these levels. Relays must not be powered from the same wiring used to power the controller.

24 VDC Powered sc100The 24 VDC sc100 controller contains three relays designed for connection to LOW voltage circuits (i.e., voltages less than 30V-RMS, 42.2V-PEAK or 60 V dc). Refer to Figure 16 for connection information. The wiring compartment is not designed for voltage connections above these levels. Relay must not be powered from the same wiring used to power the controller.

19

Installation

Figure 16 Alarm and Relay Connections

3.4.2 Connecting the Analog Outputs


DANGERFor Class 1, Division 2 Hazardous Location installations, refer to the Control Drawing (Figure 2 on page 8) for permanent connection requirements for the analog output.

Two isolated analog outputs (1 and 2) are provided, see Figure 17. Each output can be set to 0–20 or 4–20 mA, and can be assigned to represent the measured parameter or secondary measurement such as temperature. Make connections with twisted-pair shielded wire and connect the shield at the controlled component end or at the control loop end. Do not connect the shield at both ends of the cable. Use of non-shielded cable may result in radio frequency emission or susceptibility levels higher than allowed. Maximum loop resistance is 500 ohm. Refer to the sensor manual for output software setup.

Make wiring connections at the analyzer end as shown in Table 4 and Figure 17.

NCNCNC COMCOMCOM NO

F1

F2

NONO


J1

J2

J4

S1

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9J5J5

NCNCNC COMCOMCOM NO

F1

F2

NONO


J1

J2

J4

S1

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9J5J5

J5 J6 J7

321

RELAY A RELAY B RELAY C

DisconnectPower

NC COM NO

20

Installation

Figure 17 Analog Output Connections

3.5 Connecting/Wiring the sc Sensor

DANGERFor Class 1, Division 2 Hazardous Location installations, refer to the Control Drawing (Figure 2 on page 8) for sensor and optional equipment connection requirements.

3.5.1 Connecting the sc Sensor in a Non-hazardous Location

3.5.1.1 Attaching a sc Sensor with a Quick-connect Fitting

The sensor cable is supplied with a keyed quick-connect fitting for easy attachment to the controller, see Figure 18. Retain the connector cap to seal the connector opening in case the sensor must be removed. Optional extension cables may be purchased to extend the sensor cable length. If the total cable length exceeds 100 m (300 ft), a termination box must be installed. When used with the termination box, the maximum cable length is 1000 m (3000 ft). See the Replacement Parts section in the sensor manual for part number information.

Table 4 Output Connections at Terminal Block J6

Recorder Wires Circuit Board Position

Output 2 + 1

Output 2 – 2

Shield 3

Output 1 + 4

Output 1 – 5

NCNCNC COMCOMCOM NO

F1

F2

NONO


J1

J2

J4

S1

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR










J5J5

NCNCNC COMCOMCOM NO

F1

F2

NONO


J1

J2

J4

S1

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR










J5J5

J6

12345

21

Installation

Figure 18 Attaching the Sensor using the Quick-connect Fitting

3.5.1.2 Hard-wiring a sc Sensor to the Controller

1. Open the controller cover.

2. Disconnect and remove the existing wires between the quick connect and terminal block J5, see Figure 19.

3. Remove the quick connect fitting and wires and install the threaded plug on the opening to maintain the environmental rating.

4. Strip the insulation on the cable back 1-inch. Strip ¼-inch of each individual wire end.

5. Pass the cable through conduit and a conduit hub or a strain relief fitting and an available access hole in the controller enclosure. Tighten the fitting.

6. Wire as shown in Table 5.

7. Close and secure the cover.

22

Installation

Figure 19 Hard-wiring the sensor

3.5.2 Connecting the sc Sensor to a Controller in a Hazardous Location



3.5.2.1 Attaching a sc Sensor with a Quick-connect FItting in a Hazardous Location

The sensor cable is supplied with a keyed quick-connect fitting for easy attachment to the controller, see Figure 18. For hazardous locations, a connector safety lock must be installed. Retain the connector cap to seal the connector opening in case the sensor must

Table 5 Wiring the Sensor at Terminal Block J5

Terminal Number Terminal Designation Wire Color

1 Data (+) Blue

2 Data (–) White

3 Service Request No Connection

4 +12 V dc Brown

5 Circuit Common Black

6 Shield Shield (grey wire in existing quick disconnect fitting)

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESPR

OBES

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR










NCNCNC COMCOMCOM NO

F1

F1

F2

NONO

RELAY 3RELAY 2RELAY 1

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESPR

OBES

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR





J1

J2

J4

NETWORKINTERFACE

CARD

J3

U5

U9

S1






1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESPR

OBES

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR










NCNCNC COMCOMCOM NO

F1

F1

F2

NONO


1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESPR

OBES

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR





J1

J2

J4

NETWORKINTERFACE

CARD

J3

U5

U9

S1






J6

J5J5J5J5

DisconnectPower

From Probe

23

Installation

be removed. Optional extension cables may be purchased to extend the sensor cable length (up to a maximum length of 1000 m (3000 ft).

1. Remove the connector cap from sc100 controller. Retain the connector cap to seal the connector opening in case the sensor must be removed.

2. Connect the sensor connector to the plug on the sc100.

3. Install a connector safety lock (Figure 20). Align the lock over the connector and squeeze the two halves together to lock. To remove the connector safety lock by inserting a small flat-bladed screwdriver into the locking groove. Pivot the screwdriver away from the groove and separate the two halves (Figure 20).

Figure 20 Installing the Connector Safety Lock

3.6 Wiring the Digital Gateway


The digital gateway is designed to provide a digital interface to the sc100 controller (or other appropriate digital controller). The non-sensor end is connected to the controller as described in section 3.5.1 on page 20 for non-hazardous locations and section 3.5.2 on page 22 for hazardous locations.

3.7 Connecting the Optional Digital Output


DANGERFor Class 1, Division 2 Hazardous Location installations refer to the Control Drawing (Figure 2 on page 8) for permanent connection requirements for the Digital Outputs. Installation of communication protocols other than those specified in the Control Drawing are not allowed for Class 1, Division 2 Hazardous Locations.



24

Installation

At this time, the manufacturer supports Modbus RS485, Modbus RS232, and Profibus DP communication protocols. The optional digital output card is installed in the location indicated in Figure 22 on page 25. Terminal block J1 provides user connection to the optional network card. The terminal connection is based on the selected network card. Refer to the instructions supplied with the network card for more details.

Note: The sc100/1720E system also supports the AquaTrend Network.

Surge Protection Recommendation for Profibus DPMany industrial environments are vulnerable to power transients and lightning. Water and wastewater plants are frequent targets of lightning. Lightning generated fields and power surges can cause instrument failures at these facilities. Surge protectors limit the magnitude of over-voltage transients and protect equipment from damage. To be effective on Data lines, at a minimum, a surge protector should provide two stages of protection with sub-nanosecond response time. Data line surge protection should be installed on a Profibus DP network where it might be susceptible to lightning or transients. The purpose of the surge protector is to protect the equipment that it is located next to, not the network cable.

For the best performance/protection connect the surge protector as close as possible to the device to be protected and connect the device (instrument) ground connection through the surge protector’s ground to the local protective earth ground. Contact your local Profibus network component supplier for their recommendation as to which surge protectors may be best for your system.

Figure 21 RS232 Connection to Customer-supplied Computer 9-pin D Subminiature Connector

Table 6 Digital Output Terminal Assignments

Terminal Number

AquaTrend Network1

Modbus RS485 2-wire

Modbus RS485 4-wire

Modbus RS232 Profibus DP

1 Network A D+ RD+ Rx A1– (out)

2 Network B D– RD– No connection B1+ (out)

3 Network A No connection TD+ Tx A2– (in)

4 Network B No connection TD– No connection B2+ (in)

5 No connection Common Common Common Common

6 No connection No connection No connection No connection No connection

7 Shield Shield Shield Shield Shield

1 The AquaTrend Network only applies to sc100/1720E systems

Common 59

8

7

6

Not used 4

Rx 3

Tx 2

Not used 1

25

Installation

Figure 22 Network Card Position in the Controller

1. J2—Network card header 4. Mounting hole (3)

2. J2 Pin 1 5. Network card placement

3. J1 Terminal

NCNCNC COMCOMCOM NO

F1

F2

NONO

RELAY CRELAY BRELAY ARELAY A

J1

J2

J4

S1

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR










J5J5

NCNCNC COMCOMCOM NO

F1

F2

NONO

RELAY CRELAY BRELAY ARELAY A

J1

J2

J4

S1

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR










J5J5

3 54

21


http://www.hach.com

27

Section 4 Operation

4.1 Using the Keypad

The front of the controller is shown in Figure 23. The keypad consists of the eight keys described in Table 7.

Figure 23 Front of the Controller

1. Instrument display 5. IrDA Port

2. BACK key 6. HOME key

3. MENU key 7. ENTER key

4. RIGHT, LEFT, UP, and DOWN keys

Table 7 Controller Key Functions/Features

Number Key Function

2 Moves back one level in the menu structure.

3Moves to the main menu from other menus. This key is not active in menus where a selection or other input must be made.

4 Navigates through the menus, changes settings, and increments and decrements digits.

6Moves to the Main Measurement screen from any other screen. This key is not active in menus where a selection or other input must be made.

7 Accepts an input value, updates, or accepts displayed menu options.

sc100

1

2 6

5

3 7

4

28

Operation

4.2 Controller Display Features

When a sensor is connected and the controller is in measurement mode, the controller automatically identifies the connected sensors and displays associated measurements.

The display will flash on startup, when a sensor error has occurred, when the hold outputs function has been activated, and when a sensor is being calibrated. An active system warning will cause the warning icon (a triangle with an exclamation point inside) to be displayed on the right side of the display. See Figure 24.

Figure 24 Display Example

4.2.1 Important Key Presses

• Press HOME then RIGHT or LEFT to display two readings when two sensors are connected. Continue to press RIGHT or LEFT to toggle through the available display options:

• Press UP and DOWN to toggle the status bar at the bottom of the measurement display to display the secondary measurement (temperature) and output information.

• When in Menu mode, an arrow may appear on the right side of the display to indicate that more menus are available. Press UP or DOWN (corresponding to the arrow direction) to display additional menus.

1. Status bar. Indicates the sensor name and status of relays. The relay letter is displayed when the relay is energized.

4. Parameter

2. Main measurement 5. Warning icon area

3. Secondary measurement (if applicable) 6. Measurement units

7.00SENSOR NAME:

pHTEMP: 23.0°C

1

2

3

6

5

4

pH pHpH

7.00SENSOR NAME:

TEMP: 23.0°C

7.00SENSOR NAME:

OUTPUT1: 12.00 mApH 7.00

SENSOR NAME:

OUTPUT2: 12.00 mVpHpH

SENSOR DIAGSENSOR SETUP

TEST/MAINT

MAIN MENU

SYSTEM SETUP

OUTPUT SETUPSYSTEM SETUP

NETWORK SETUPRELAY SETUP

DISPLAY SETUP

DISPLAY SETUPSYSTEM SETUP

LOG SETUPSECURITY SETUP

CALCULATION

SECURITY SETUPSYSTEM SETUP

CALCULATIONLOG SETUP

ERROR HOLD MODE

29

Operation

4.3 System Setup

4.2.2 Software Text Abbreviations

Abbreviation Meaning Abbreviation Meaning

Adj Adjust P/F Pass/Fail

Cal Calibration Pass Password

Cont Continue Preped Prepared

Dflt Default SN Serial Number

Diag Diagnostic Std Standard

Freq Frequency Temp Temperature

Int Internal Vers Version

Meas Measurement Xfer Transfer

4.3.1 Adjusting Display Contrast

Step Select Menu Level/Instructions Confirm

1 MAIN MENU —

2 SYSTEM SETUP

3 DISPLAY SETUP

4 — ADJUST CONTRAST

5 (+0–50)

6 Main Menu or Main Measurement Screen —

4.3.2 Specifying the Displayed Language


1 MAIN MENU —

2 SYSTEM SETUP

3 DISPLAY SETUP

4 LANGUAGE

5 Select the language from displayed options.


30

Operation

4.3.3 Setting the Time and Date

4.3.3.1 Setting the Time (24-hr format)


1 MAIN MENU —

2 SYSTEM SETUP

3 DISPLAY SETUP

4 SET DATE/TIME

5 Highlight TIME

6

Select the character to edit.

Scroll to appropriate number.


4.3.3.2 Setting the Date Format and Date


1 MAIN MENU —

2 SYSTEM SETUP

3 DISPLAY SETUP

4 SET DATE/TIME

5 — Highlight DATE FORMAT

6 Choose the appropriate date format from the displayed options.

7 Highlight DATE

8

Select the character to edit. —

Scroll to the appropriate number.


31

Operation

4.4 Setting up System Security

The passcode feature of the sc100 restricts unauthorized access to configuration and calibration settings. The passcode is factory set to sc100 (the five digits must be followed by a space to remove the trailing asterisk). The following two options are available:

Disabled: All configuration settings and calibrations can be changed. This is the default.

Enabled: Certain calibration and Test/Maint settings/operations cannot be accessed without the passcode. If the passcode is enabled, it may be edited (section 4.4.2). The passcode can include up to six digits (alpha and/or numeric and available characters). If the instrument is reset using the Configure/Default Setup menu selection, the passcode will return to the factory default. If a passcode is forgotten, obtain the Master passcode from the Technical Consulting Services Department, see Section 9 on page 46.

4.4.1 Setting the Passcode


1 MAIN MENU —

2 SYSTEM SETUP

3 SECURITY SETUP

4 — SET PASSCODE

5 Highlight ENABLE


4.4.2 Editing the Passcode


1 MAIN MENU —

2 SYSTEM SETUP

3 Highlight SECURITY SETUP

4 ENTER PASSCODE

5 EDIT PASSCODE

6

EDIT PASSCODE select character (shown in brackets) —

EDIT PASSCODE move to the next character


32

Operation

4.5 Output Options

Refer to the System Setup on page 29 for more information on the output options menu. The analyzer provides two isolated analog outputs (Output 1 and Output 2).

4.5.2 Hold/Transfer Outputs

During normal measurement operation, the analog outputs can be held at the last measured value or transferred to a preset value.

4.5.1 Navigating to the Output Options Menu


1 MAIN MENU —

2 SYSTEM SETUP

3 OUTPUT SETUP

4 SELECT OUTPUT

5 Customize the options, refer to System Setup on page 29.

6 Main Menu or Main Measurement Screen when Output options are configured. —

4.5.2.1 Hold/Transfer Outputs until Release


1 MAIN MENU —

2 TEST/MAINT

3 HOLD OUTPUTS

4 SET OUTMODE

5 Select HOLD OUTPUTS or XFER OUTPUTS

6 SET CHANNELS

7 Select ALL or one of the connected sensors. —

8 ACTIVATION

9 Select LAUNCH

10 Main Menu or Main Measurement Screenreading will flash

33

Operation

During calibration, analog outputs can remain active, held, or transferred to a preset mA value.

4.6 Relay Options

Refer to System Setup on page 29 for more information on the relay options menu.

4.7 Data Event Logging Options

The sc100 provides three data logs (one for each sensor and one for calculated values) and three event logs (one for each sensor and one for the controller). The data logs store the measurement data at selected intervals. The event log stores a variety of events that occur on the devices such as configuration changes, alarms, and warning conditions. The data logs are stored in a packed binary format and the event logs are stored in a CSV format. The logs can be downloaded through the digital network port, the IrDA port, or through the service port using the service cable LZX887.

4.5.3 Release Outputs

Step Select Menu Level Confirm

1 MAIN MENU —

2 TEST/MAINT

3 HOLD OUTPUTS

4 ACTIVATION

5 RELEASE


4.6.1 Navigating to the Relay Options Menu


1 MAIN MENU —

2 SYSTEM SETUP

3 RELAY SETUP

4 SELECT RELAY

5 Customize the options, refer to System Setup on page 29.

6 Main Menu or Main Measurement Screen when Relay options are configured. —

34

Operation

4.8 Digital Network Options

The sc100 provides two digital communication methods with the controller (the digital network port and the IrDA port). Either of the digital ports can be used to access setup data, measurement data, or data/event logs. For the features available for each individual digital network port, refer to the instruction sheet supplied with the selected network card.

4.9 System Setup MenuOUTPUT SETUP (see section 4.5.1 on page 32 for expanded menu information)

SELECT OUTPUT 1 OR 2

SELECT SOURCE

Press ENTER to access a list of all connected sensors and select the sensor that will drive the output.

SET PARAMETER

Press ENTER to select from the displayed parameters. Highlight the appropriate displayed parameter and press ENTER.

SET FUNCTION

Select LINEAR CONTROL for current output to track the measurement valve. Select PID CONTROL for the sc100 to operate as a PID controller.

SET TRANSFER

Each analog output is normally active, responding to the measured value of its assigned parameter. However, during calibration, each output can be transferred to this preset transfer value.

SET FILTER

Average measurements over time (0–999 seconds). Default is 0 seconds. The higher the value, the longer the sensor signal response time will be to a change in the actual process value.

SCALE 0 mA/4 mA

Select 0 mA or 4 mA for minimum current (outputs will be set to 0–20 mA or 4–20 mA).

ACTIVATE

Dependent on Function selected previously. See section 4.5.1 on page 32 for additional information.

FUNCTION set to LINEAR CONTROL

If LINEAR CONTROL was selected in SET FUNCTION, set the low and the high values for the current output here.

FUNCTION set to PID CONTROL

1. SET MODE: AUTO or MANUAL

2. PHASE: DIRECT or REVERSE controller operation.

3. SET SETPOINT: enter the setpoint the PID control will control the process to.

4. PROP BAND: control the proportional band for the PID control.

5. INTEGRAL: control the integral action time period in minutes.

6. DERIVATIVE: control the settings for the rate control.

35

Operation

RELAY SETUP

Select Relay A, B, or C

SELECT SOURCE

. Select from none, a connected sensor, or the real time clock (RTC)

SET PARAMETER

Press ENTER to select from the displayed parameters.

SET FUNCTION

Source set to sensor

Alarm: Operates relays in response to the measured parameter. Contains separate High and Low Alarm points, deadbands, and ON/OFF delay.

Feeder Control: Operates in response to the measured parameter. Can be set for phasing, setpoint, deadband, overfeed timer, and ON/OFF delay.

Event Control: Controls a cleaning system (or equivalent) on a timed basis.

Warning: Activated when the analyzer detects a sensor warning.

PMW Control: Allows the relay to provide a duty cycled output.

Freq Control: Allows the relay to cycle at a frequency between the minimum pulse per minute and maximum pulse per minute.

Source set to RTC

Timer: Sets the timer for a cleaning system (or equivalent). Controls the output hold, interval, duration, and off delay.

SET TRANSFER

Sets the relay to Energize or De-energize (user-selectable). Normally, each control or alarm relay is active, responding to the measured value of its assigned parameter. During calibration, however, the relay can be transferred to a preset on/off state to suit the application requirements. Select Energize or De-energize and press ENTER.

FAILSAFE

Allows the user to create a state where the normal condition is energized. The relay is de-energized when an error condition is experienced. Select YES (Energized) or NO (De-energized) and press ENTER. YES sets the relay normal condition to energized resulting in the relay becoming de-energized when an error condition is experienced.

ACTIVATION

Function set to ALARM

LOW ALARM—Sets the value where the relay will turn on in response to decreasing measured value. For example, if the low alarm is set for 1.0 and the measured value drops to 0.9, the relay will be activated.

HIGH ALARM—Sets the value where the relay will turn on in response to increasing measured value. For example, if the high alarm is set for 1.0 and the measured value increases to 1.1, the relay will be activated.

LOW DEADBAND—Sets the range where the relay remains on after the measured value increases above the low alarm value. Default is 5% of the range. For example, if the low alarm is set for 1.0 and the low deadband is set for 0.5, then the relay remains on between 1.0 and 1.5.

HIGH DEADBAND—Sets the range where the relay remains on after the measured value decreases below the high alarm value. Default is 5% of the range. For example, if the high alarm is set for 4.0 and the high deadband is set for 0.5, then the relay remains on between 3.5 and 4.0.

OFF DELAY—Sets a time (0–300 seconds) to delay the relay from normally turning off.

ON DELAY—Sets a time (0–300 seconds) to delay the relay from normally turning on.

LOW ALARM—Sets the value where the relay will turn on in response to decreasing measured value. For example, if the low alarm is set for 1.0 and the measured value drops to 0.9, the relay will be activated.

4.9 System Setup Menu (continued)

36

Operation

Function set to FEEDER CONTROL

PHASE—“High” phase assigns the relay setpoint to respond to an increasing measured value; conversely, a “Low” phase assigns the relay setpoint to respond to a decreasing measured value.

SET SETPOINT—Sets the value where the relay will turn on.

DEADBAND—Sets the range where the relay remains on after the measured value decreases below the setpoint value (high phase relay) or increases above the setpoint value (low phase relay).

OVERFEED TIMER—Sets the time (0–999.9 minutes) to limit how long the relay can remain on.

OFF DELAY—Sets a time (0–999 seconds) to delay the relay from normally turning off.

ON DELAY—Sets a time (0–999 seconds) to delay the relay from normally turning on.

Function set to EVENT CONTROL

SET SETPOINT—Sets the value where the relay will turn on.

DEADBAND—Sets the range where the relay remains on after the measured value decreases below the setpoint value (high phase relay) or increases above the setpoint value (low phase relay).

OnMax TIMER—Sets the time (0–999 minutes) to limit the time the relay can remain on.

OffMax TIMER—Sets a time (0–999 minutes) to delay the relay from normally turning off.

OnMin TIMER—Sets the time (0–999 minutes) to limit the time the relay can remain on.

OffMin TIMER—Sets the time (0–999 minutes) to limit the time the relay can remain off.

Function set to TIMER (RTC selected in SELECT SOURCE)

HOLD OUTPUTS—Set OUTMODE to select output hold operation and select channels that cause the outputs to be held.

INTERVAL—Set the off time for the relay.

DURATION—Set the on time for the relay.

OFF DELAY—Set the time for additional hold/output time after the relay has been turned off.

Function set to WARNING CONTROL

WARNING LEVEL—Set the warning level that will trigger a relay. Range: 0–32. For example: If warnings 1–9 are active on the instrument, set the warning level to 0 to allow all warnings to trigger the relay; set the warning level to 5 to allow warnings 6 and above to trigger the relay. Set the warning level to 9 or greater to not trigger the relay on any warning.

Function set to PMW CONTROL

SET MODE—Auto or Manual

PHASE—Direct or Reverse

SET SETPOINT—Control Setpoint

DEAD ZONE—Zone around setpoint where output is off

PERIOD—3–60 second PMW period

MIN WIDTH—Minimum pulse width in 0.1 seconds

MAX WIDTH—Maximum pulse width in 0.1 seconds

PROP BAND—Proportional control band

INTEGRAL—Integral control setting (minutes)

Function set to FREQ CONTROL

SET MODE—Auto or Manual

PHASE—Direct or Reverse

SET SETPOINT—Control Setpoint

DEAD ZONE—Zone around setpoint where output is off

MIN WIDTH—0.001–200 pulses per minute

MAX WIDTH—0.001–200 pulses per minute

PROP BAND—Proportional control band (this is outside of the dead zone)

INTEGRAL—Integral control setting (minutes)


37

Operation

NETWORK SETUP (this menu appears only if a network card is installed in the controller)

SET MODE

Auto or Manual

MODBUS ADDRESS

Highlight sc100 Analyzer, or either connected sensor then press ENTER. Choose a number between 1 and 247 as the address (each source must have a different address) then press ENTER.

BAUD RATE

Select a baud rate of 9600, 19200, 38.4K, 57.6K, or 115.2K. Default: 19200

STOP BITS

Select 1 or 2 stop bits. Default: 1

MODBUS MODE

Select RTU or ASCI. Default: RTU

DATA ORDER

Select Normal or Swapped. Default: Swapped

DISPLAY SETUP

ADJUST CONTRAST

Use the UP and DOWN keys to increase or decrease the contrast, see section 4.3.1 on page 29.

LANGUAGE

The default is English. Choose Spanish, German, or French to allow all menus to appear in the selected language.

SET DATE/TIME

Select the date format and to set the date and time (24-hour (military) format), see section 4.3.3 on page 30.

SECURITY SETUP (Enter a 6-digit passcode)

SET PASSCODE

DIISABLE

Disables system security. See section 4.4 on page 31.

ENABLE

Enables system security. See section 4.4 on page 31.

LOG SETUP

DATALOG SETUP

Setup datalogging of displayed sensor measurements

CALCULATION

SET VARIABLE X

Select the sensor corresponding to the variable set as “X”.

SET VARIABLE Y

Select the sensor corresponding to the variable set as “Y”.

SET PARAMETER

Select the parameter to be associated with the variable.

SET FORMULA

Select the formula of the calculation to be performed on “X” and “Y”.


38

Operation

ERROR HOLD MODE

HOLD OUTPUTS

Holds outputs when unable to communicate with the sensor.

XFER OUTPUTS

Goes to transfer state when unable to communicate with the sensor.

4.10 Test/Maint MenuSTATUS

Indicates the status of each relay and indicates which sensors are connected to the controller.

OUTPUT CAL


Calibrate Analog Output by specifying values to correspond to 4 mA and 20 mA using the UP and DOWN arrow keys.

HOLD OUTPUTS

SET OUTMODE

Choose Hold Outputs or Xfer Outputs

SET CHANNELS

Choose any individual attached sensor or all attached sensors to be held or transferred.

ACTIVATION

Select Launch or Release.

OVERFEED RESET

Reset the overfeed time out.

TEST OUTPUT


Set the analog output to a desired current level. Range: 0–20

TEST RELAY

SELECT RELAY A, B, OR C

Energize or de-energize the selected relay.

RESET CONFIG

Reset to default configuration

SIMULATION

SELECT SOURCE, SET PARAMETER, SET SIM VALUE

Simulate sensor measurement value for testing the outputs and relays.

SCAN SENSORS

Manually scans for sensors to determine if sensors have been added or removed.

MODBUS STATS

Indicates the communication statistics for use with an external network.

CODE VERSION

Indicates the controller software version.


39

Section 5 Maintenance

DANGEROnly qualified personnel should conduct the tasks described in this section of the manual.

DANGERExplosion hazard. Do not connect or disconnect equipment unless power has been switched off or the area is known to be non-hazardous.

DANGERExplosion hazard. Substitution of components may impair suitability for Class 1, Division 2.

5.1 Cleaning the Controller

With the enclosure securely closed, wipe the exterior with a damp cloth.

5.2 Fuse Replacement

The instrument contains two mains fuses. Failed fuses are an indication that an equipment problem could exist. Problem resolution and fuse replacement should be performed only by qualified service personnel. Refer to Figure 25 and the following steps to replace the fuses:

1. Disconnect power to the controller (including power to relays and other components, if powered).

2. Open the hinged controller cover by completely loosening all four captive screws in the cover.

3. Remove the high voltage barrier; pull out on the lever of the captive fastener then pull straight out on the barrier. Set the barrier aside for reinstallation.

4. Remove the fuses and install new fuses of the same type and rating:

• ac Powered sc100: T, 1.6 A, 250 V, slow blow

• 24 V dc powered sc100: T, 3 A, 250V, slow blow

5. Reinstall the high voltage barrier.

6. Close the controller cover and hand-tighten the four screws.

7. Reconnect power to the instrument.

40

Maintenance

Figure 25 Fuse Replacement

1. Fuses F1 and F2. AC powered, T, 1.6A, 250V, slow blowDC powered, T, 3A, 250V, slow blow

NCNCNC COMCOMCOM NO

F1

F2

NONO


J1

J2

J4

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

S1

1

41

Section 6 Replacement Parts and Accessories

6.1 Replacement ItemsDescription Quantity Catalog Number

Controller Installation Kit each 58672-00

Fuse, T, 3A, 250V, slow blow each 41060

Fuse, T, 1.6 A, 250 V, slow blow each 52083-00

Instruction manual, English each 58600-18

6.2 AccessoriesDescription Quantity Catalog Number

Digital output card for Modbus RS232 communication each 59200-00

Digital output card for Modbus RS485 communication each 59200-01

Locknut each 1059612

Plug, conduit opening each 58687-00

Power cord with strain relief, 115 V each 54488-00

Power cord with strain relief, 230 V each 54489-00

Sealing Washer each 1033814

Strain relief, Heyco each 4379400

Sun Shield each 58690-00


http://www.hach.com

43

Section 7 Compliance Information

Hach Co. certifies this instrument was tested thoroughly, inspected, and found to meet its published specifications when it was shipped from the factory.

The Model sc100 has been tested and is certified as indicated to the following instrumentation standards:

Product Safety

FM 3600/3611 Class I, Division 2 (ETL Listing I.D. # 65454)UL 61010A-1 (ETL Listing # 65454)CSA C22.2 No. 1010.1 & No. 213-M1987 Class I, Division 2 (ETLc Certification I.D. # 65454)Certified by Hach Co. to EN 61010-1 Amds. 1 & 2 (IEC1010-1) per 73/23/EEC, supporting test records by Intertek Testing Services.

ImmunityThis equipment was tested for Industrial level EMC per:

EN 61326 (EMC Requirements for Electrical Equipment for Measurement, Control and Laboratory Use) per 89/336/EEC EMC: Supporting test records by Hach Company, certified compliance by Hach Company.

Standards include:

IEC 1000-4-2:1995 (EN 61000-4-2:1995) Electrostatic Discharge Immunity (Criteria B)IEC 1000-4-3:1995 (EN 61000-4-3:1996) Radiated RF Electromagnetic Field Immunity (Criteria A)IEC 1000-4-4:1995 (EN 61000-4-4:1995) Electrical Fast Transients/Burst (Criteria B)IEC 1000-4-5:1995 (EN 61000-4-5:1995) Surge (Criteria B)IEC 1000-4-6:1996 (EN 61000-4-6:1996) Conducted Disturbances Induced by RF Fields (Criteria A)IEC 1000-4-11:1994 (EN 61000-4-11:1994) Voltage Dip/Short Interruptions (Criteria B)

Additional Immunity Standard/s include:ENV 50204:1996 Radiated Electromagnetic Field from Digital Telephones (Criteria A)

EmissionsThis equipment was tested for Radio Frequency Emissions as follows:

Per 89/336/EEC EMC: EN 61326:1998 (Electrical Equipment for measurement, control and laboratory use—EMC requirements) Class “A” emission limits. Supporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test Center (A2LA # 0905-01) and certified compliance by Hach Company.

Standards include:EN 61000-3-2 Harmonic Disturbances Caused by Electrical EquipmentEN 61000-3-3 Voltage Fluctuation (Flicker) Disturbances Caused by Electrical Equipment

Additional Emissions Standard/s include:EN 55011 (CISPR 11), Class “A” emission limits

44

Compliance Information

Canadian Interference-causing Equipment Regulation, IECS-003, Class ASupporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test Center (A2LA # 0905-01) and certified compliance by Hach Company.

This Class A digital apparatus meets all requirements of the Canadian Interference-causing Equipment Regulations.Cet appareil numèrique de la classe A respecte toutes les exigences du Rëglement sur le matÈriel brouilleur du Canada.

FCC PART 15, Class “A” LimitsSupporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test Center (A2LA # 0905-01) and certified compliance by Hach Company.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense. The following techniques of reducing the interference problems are applied easily.

1. Disconnect the Model sc100 Controller from its power source to verify that it is or is not the source of the interference.

2. If the Model sc100 Controller is connected into the same outlet as the device with which it is interfering, try another outlet.

3. Move the Model sc100 Controller away from the device receiving the interference.

4. Reposition the receiving antenna for the device receiving the interference.

5. Try combinations of the above.

45

Section 8 How to Order

U.S.A. Customers

By Telephone:6:30 a.m. to 5:00 p.m. MSTMonday through Friday(800) 227-HACH (800-227-4224)

By Fax:(970) 669-2932

By Mail:Hach CompanyP.O. Box 389Loveland, Colorado 80539-0389 U.S.A.Ordering information by e-mail: [email protected]

Information Required

International CustomersHach maintains a worldwide network of dealers and distributors. To locate the representative nearest you, send an e-mail to: [email protected] or contact:

Hach Company World Headquarters; Loveland, Colorado, U.S.A.Telephone: (970) 669-3050; Fax: (970) 669-2932

Technical and Customer Service (U.S.A. only)Hach Technical and Customer Service Department personnel are eager to answer questions about our products and their use. Specialists in analytical methods, they are happy to put their talents to work for you.

Call 1-800-227-4224 or e-mail [email protected]

• Hach account number (if available) • Billing address

• Your name and phone number • Shipping address

• Purchase order number • Catalog number

• Brief description or model number • Quantity

46

Section 9 Repair Service

Authorization must be obtained from Hach Company before sending any items for repair. Please contact the Hach Service Center serving your location.

In the United States:Hach CompanyAmes Service100 Dayton AvenueAmes, Iowa 50010(800) 227-4224 (U.S.A. only)FAX: (515) 232-3835

In Canada:Hach Sales & Service Canada Ltd.1313 Border Street, Unit 34Winnipeg, ManitobaR3H 0X4(800) 665-7635 (Canada only)Telephone: (204) 632-5598FAX: (204) 694-5134E-mail: [email protected]

In Latin America, the Caribbean, the Far East,Indian Subcontinent, Africa, Europe, or the Middle East:Hach Company World Headquarters,P.O. Box 389Loveland, Colorado, 80539-0389 U.S.A.Telephone: (970) 669-3050FAX: (970) 669-2932E-mail: [email protected]

47

Section 10 Limited Warranty

Hach Company warrants its products to the original purchaser against any defects that are due to faulty material or workmanship for a period of one year from date of shipment unless otherwise noted in the product manual.

In the event that a defect is discovered during the warranty period, Hach Company agrees that, at its option, it will repair or replace the defective product or refund the purchase price excluding original shipping and handling charges. Any product repaired or replaced under this warranty will be warranted only for the remainder of the original product warranty period.

This warranty does not apply to consumable products such as chemical reagents; or consumable components of a product, such as, but not limited to, lamps and tubing.

Contact Hach Company or your distributor to initiate warranty support. Products may not be returned without authorization from Hach Company.

LimitationsThis warranty does not cover:

• Damage caused by acts of God, natural disaster, labor unrest, acts of war (declared or undeclared), terrorism, civil strife or acts of any governmental jurisdiction

• Damage caused by misuse, neglect, accident or improper application or installation

• Damage caused by any repair or attempted repair not authorized by Hach Company

• Any product not used in accordance with the instructions furnished by Hach Company

• Freight charges to return merchandise to Hach Company

• Freight charges on expedited or express shipment of warranted parts or product

• Travel fees associated with on-site warranty repair

This warranty contains the sole express warranty made by Hach Company in connection with its products. All implied warranties, including without limitation, the warranties of merchantability and fitness for a particular purpose, are expressly disclaimed.

Some states within the United States do not allow the disclaimer of implied warranties and if this is true in your state the above limitation may not apply to you. This warranty gives you specific rights, and you may also have other rights that vary from state to state.

This warranty constitutes the final, complete, and exclusive statement of warranty terms and no person is authorized to make any other warranties or representations on behalf of Hach Company.

Limitation of RemediesThe remedies of repair, replacement or refund of purchase price as stated above are the exclusive remedies for the breach of this warranty. On the basis of strict liability or under any other legal theory, in no event shall Hach Company be liable for any incidental or consequential damages of any kind for breach of warranty or negligence.


http://www.hach.com

49

Appendix A Modbus Protocol

A.1 Introduction

Modbus was developed as a PLC communication protocol by Modicon in the late 1970s. Because Modbus is a well-defined and published standard, Modbus has become one of the best known protocols for interfacing digital equipment to PLCs.

Modbus uses a master/slave data exchange technique. The master (typically a PLC) generates queries to individual slaves. The slaves, in turn, reply back with a response to the master. A Modbus message contains the information required to send a query or request, including the slave address, function code, data, and a checksum.

The format of a Modbus message is shown below:

A.2 Query Message

A query message is generated by the master to request data from a slave. It contains a function code that specifies the type and amount of data requested. A read digital input register function code (02), for example, instructs the slave to read digital inputs and return the value in a response message.

The following message instructs slave 1 to read two bits starting at offset 0.

Note that the above values are hexadecimal bytes, not ASCII characters.

A.3 Response Message

A response message is generated by the slave in response to a query message from the master. The response to read digital input register function code (02), for example, returns the value of the requested digital inputs. The original slave address and function code is also returned to validate the response.

The following response is generated from the previous query if discrete input 1 is OFF (0) and discrete input 2 is ON (1).

Again note that the above values are hexadecimal bytes, not ASCII characters.

Address Function Data Checksum

1 byte 1 byte Variable number of bytes 2 bytes

Address FunctionData

ChecksumStart Register Number of Points

01 02 00 00 00 02 F9 CB


ChecksumByte Count Digital Input Bits

01 02 01 02 20 49

50

Modbus Protocol

A.4 Modbus Message Detail

The various fields within a Modbus message are described in more detail below.

AddressThe address field is a single byte. This byte ranges in value from 1 to 247.

Function CodesThe function code is a single byte. Several function code values exist in Modbus. The ones supported by the sc100/Digital Sensor System are described below.

Only the relative address is specified in a message. The relative address is automatically added to the absolute address for that function code. If a read holding register message, for example, specifies relative address 0, the value in absolute address 40001 would be returned.

DataThe data field consists of a series of bytes. The number of bytes varies in length depending on the function code. Typical query message data consists of the relative address to be read by the slave. Typical response message data consists of actual data read by the slave.

ChecksumThe checksum is two bytes which are appended to every message. These bytes ensure the data packet was transmitted with no errors. The algorithm which is applied to RTU messages is a 16 bit Cyclic Redundancy Check (CRC). The algorithm which is applied to ASCII messages is an 8 bit Longitudinal Redundancy Check (LRC).

ASCII / RTU Data FormatModbus supports both ASCII and RTU data formats. RTU uses binary (non-printable) characters, and is used for normal operation. ASCII uses 7 bit printable characters, and is typically only used for debugging purposes.

The following tables show the same message in RTU and ASCII formats.

Function Code Description Data Type Absolute Address Relative Address

03 Read Holding Registers Word (16 bits) 40001 to 49999 0 to 9998

06 Write Holding Register Word (16 bits) 40001 to 49999 0 to 9998

08 Loopback Test n/a n/a n/a

17 Report Slave ID n/a n/a n/a

Table 8 RTU Message


ChecksumStart Register Number of Points

01 02 00 00 00 02 F9 CB

Table 9 ASCII Message

Colon Address FunctionData

Checksum CR LFStart Register Number of Points

3A 30 31 30 32 30 30 30 30 30 30 30 32 46 42 0D 0A

51

Modbus Protocol

Exception CodesAn illegal request will generate a Modbus Exception Code. The most common code is caused by reading data from an unused register. An exception response message consists of the slave address, the function code with the high order bit set, the exception code, and a CRC. In the following response message, the slave reported exception code 02, indicating an illegal data address.

More InformationMore information about the Modbus Protocol can be found on the Modbus-IDA website at www.modbus-ida.org.

A.5 Floating Point Measurements

Floating point measurements are available from the sc100/Digital Sensor system. Each floating point number is a 32-bit IEEE-754 value, occupying two 16-bit registers (back-to-back); this has one sign bit, eight exponent bits and 23 mantissa bits, and is stored in Motorola (big-endian) order.

A.5.1 Big-endian and Little-endian

Big-endian and little-endian are terms that describe the order in which a sequence of bytes are stored in the computer memory. Big-endian is an order in which the "big end" (most significant value) is stored first (lowest storage address). Little-endian is an order in which the "little end" (least significant value in the sequence) is stored first. For example, in a big-endian computer, the two bytes required for the hexadecimal number 4F52 would be stored as 4F52 in storage (if 4F is stored at storage address 1000, for example, 52 will be at address 1001). In a little-endian system, it would be stored as 524F (52 at address 1000, 4F at 1001).

The sc100/Digital Sensor registers are big-endian byte order within a register and little-endian word order for multi-registers Floats.

A.5.2 Changing the “endian” Order

The default "endian" order is little-endian word order for multi-registers Floats (SWAPPED order). The order can be changed in the NETWORK SETUP menu to NORMAL order (big-endian word order for multi-registers Floats).

Address Function Data Checksum

01 81 02 C1 91

52

Modbus Protocol

A.6 Modbus TroubleshootingTable 10 Troubleshooting

Problem Possible Causes Solution

No Modus Response

Baud rate, or stop bits does not match settings of Modbus master

Verify sc100 settings match the Modbus master settings.Verify Modbus master Parity setting is set to None.

Bad RS232 or RS485 cable Replace/Repair cable

No or improper network biasing and termination.

Check all network devices for termination or biasing settings. Only the ends of the network should have termination turned on and only one point on the network should be providing biasing.

Slave Address incorrect or duplicate address of another bus device.

Verify all addresses are unique and between 1 and 247.

Modbus Exception Response

Register not supported Verify register is supported

Data Type incorrect

Verify the requested register(s) Data Type matches the Modbus Master Request e.g. do not access a Slave Float value with a 2 byte Integer request. When requesting a Float (2 registers/4 bytes), both registers must be requested at the same time.

Table 11 sc100 Modbus Registers

Group Name Tag NameRegister

#Data Type

Length R/W Description

MeasurementsCalculated Value

40001 Float 2 RValue calculated from two sensor measurements

Setup Language 40003Unsigned Integer

1 R/W Current System Language

Setup Date Format 40004Unsigned Integer

1 R/WCurrent Data Display Format (0 = DD/MM/YY; 1 = MM/DD/YY; 2 = DD-MM-YY; 3 = MM-DD-YY)

SetupError Hold Mode

40005Unsigned Integer

1 R/W

Error Mode Hold State (0 = Hold outputs; 1 = Transfer outputs to predefined value)

Setup/Analog Output 1 Source 40006Unsigned Integer

1 R/WSelects data source for this output (0 = None; 2 = sensor; 4 = Calculation)

Setup/Analog Output 1Sensor Select


1 R/WSelects sensor source when Source = Sensor (0 = sensor1; 1 = sensor2)

Setup/Analog Output 1Measurement Select


1 R/WSelects measurement on the sensor (0 = Meas1.. 3 = Meas4)

Setup/Analog Output 1 Type 40009Unsigned Integer

1 R/WSelects output type (0 = Linear output; 1 = PID control)

Setup/Analog Output 1Transfer Value

40010 Float 2 R/W Sets the transfer value

Setup/Analog Output 1 Filter 40012Unsigned Integer

1 R/WSets the output filter value in seconds (0 to 120 sec.)

Setup/Analog Output 10mA - 4mA Select


1 R/WSelects 0mA/4mA for min output (0 = 0mA; 1 = 4mA)

Setup/Analog Output 1/Linear

Min Setting 40014 Float 2 R/W Sets the min output value


Max Setting 40016 Float 2 R/W Sets the max output value

53

Modbus Protocol

Setup/Analog Output 1/PID

PID Mode 40018Unsigned Integer

1 R/WSets the PID mode (0 = auto; 1 = manual)


PID Manual Set

40019 Float 2 R/WSets the PID manual output value (0.0 to 100.0%)


PID Setpoint 40021 Float 2 R/W Sets the PID setpoint


PID Phase 40023Unsigned Integer

1 R/WSets the PID phase (0 = Direct; 1 = Reverse)


PID Proportional Band

40024 Float 2 R/W Sets the PID proportional band


PID Integral Time


1 R/W Sets the PID integral time (min)


PID Derivative Time


1 R/W Sets the PID derivative time (min)

Setup/Analog Output 2 Source 40028Unsigned Integer

1 R/WSelects data source for this output (0 = None; 2 = Sensor; 4 = Calculation)

Setup/Analog Output 2Sensor Select


1 R/WSelects sensor source when Source = Sensor (0 = Sensor1; 1 = Sensor2)

Setup/Analog Output 2Measurement Select


1 R/WSelects measurement on the Sensor (0 = Meas1 .. 3 = Meas4)

Setup/Analog Output 2 Type 40031Unsigned Integer

1 R/WSelects output type (0 = Linear output; 1 = PID control)

Setup/Analog Output 2Transfer Value

40032 Float 2 R/W Sets the transfer value

Setup/Analog Output 2 Filter 40034Unsigned Integer

1 R/WSets the output filter value in seconds (0 to 120 sec)

Setup/Analog Output 20mA - 4mA Select


1 R/WSelects 0mA/4mA for min output (0 = 0mA; 1 = 4mA)


Min Setting 40036 Float 2 R/W Sets the min output value


Max Setting 40038 Float 2 R/W Sets the max output value


Mode 40040Unsigned Integer

1 R/WSets the PID mode (0 = auto; 1 = manual)


Manual Set 40041 Float 2 R/WSets the PID manual output value (0.0 to 100.0%)


Setpoint 40043 Float 2 R/W Sets the PID setpoint


Phase 40045Unsigned Integer

1 R/WSets the PID phase (0 = Direct; 1 = Reverse)


Proportional Band

40046 Float 2 R/W Sets the PID proportional band


Integral Time 40048Unsigned Integer

1 R/W Sets the PID integral time (min)


Derivative Time


1 R/W Sets the PID derivative time (min)

Table 11 sc100 Modbus Registers (continued)


#Data Type


54

Modbus Protocol

Setup/Relay 1 Source 40050Unsigned Integer

1 R/WSelects data source for this relay (0 = None; 1 = Real Time Clock; 2 = Sensor; 4 = Calculation)

Setup/Relay 1Sensor Select


1 R/WSelects Sensor source when Source = Sensor (0 = Sensor1; 1 = Sensor2)

Setup/Relay 1Measurement Select



Setup/Relay 1 Type 40053Unsigned Integer

1 R/WSelects the relay type (0 = Alarm; 1 = Control; 2 = Status; 3 = Timer; 4 = Event)

Setup/Relay 1Transfer Setting


1 R/WSelects the transfer value for the relays (0 = De-energized; 1 = Energized)

Setup/Relay 1/Alarm High Alarm 40055 Float 2 R/W Sets the high alarm setpoint

Setup/Relay 1/Alarm Low Alarm 40057 Float 2 R/W Sets the low alarm setpoint

Setup/Relay 1/AlarmHigh Deadband

40059 Float 2 R/W Sets the high alarm deadband

Setup/Relay 1/AlarmLow Deadband

40061 Float 2 R/W Sets the low alarm deadband

Setup/Relay 1/Alarm On Delay 40063Unsigned Integer

1 R/W Sets the on delay time

Setup/Relay 1/Alarm Off Delay 40064Unsigned Integer

1 R/W Sets the off delay time

Setup/Relay 1/Control Setpoint 40065 Float 2 R/W Sets the controller setpoint

Setup/Relay 1/Control Phase 40067Unsigned Integer

1 R/WSets the controller phase (0 = Low; 1 = High)

Setup/Relay 1/Control Deadband 40068 Float 2 R/W Sets the controller deadband

Setup/Relay 1/ControlOverfeed Timer


1 R/W Sets the overfeed timer value (mins)

Setup/Relay 1/Control On Delay 40071Unsigned Integer

1 R/W Sets the on delay time (sec)

Setup/Relay 1/Control Off Delay 40072Unsigned Integer

1 R/W Sets the off delay time (sec)

Setup/Relay 1/ControlReset Overfeed Timer


1 R/W Resets the overfeed timer

Setup/Relay 1/Event Setpoint 40074 Float 2 R/W Sets the event setpoint

Setup/Relay 1/Event Phase 40076Unsigned Integer

1 R/WSets the event phase (0 = Low; 1 = High)

Setup/Relay 1/Event Deadband 40077 Float 2 R/W Sets the event deadband

Setup/Relay 1/Event On Max Time 40079Unsigned Integer

1 R/W Sets the max on time (mins)

Setup/Relay 1/Event On Min Time 40080Unsigned Integer

1 R/W Sets the min on time (mins)

Setup/Relay 1/Event Off Max Time 40081Unsigned Integer

1 R/W Sets the max off time (mins)

Setup/Relay 1/Event Off Min Time 40082Unsigned Integer

1 R/W Sets the min off time (mins)



#Data Type


55

Modbus Protocol

Setup/Relay 1/Timer Hold Type 40083Unsigned Integer

1 R/WSets which Sensor outputs are affected during timer on time (0 = None; 2 = Selected Sensor; 13 = All Sensors)

Setup/Relay 1/TimerSensor Select


1 R/W

Selects which Sensor outputs are being held/transferred during the timers on time (this is used when Hold type is set for single Sensor)

Setup/Relay 1/Timer Hold Mode 40085Unsigned Integer

1 R/WSelects hold outputs vs. set transfer value during timers on time

Setup/Relay 1/TimerDuration Time


1 R/W Sets the timer on duration time (sec)

Setup/Relay 1/Timer Period Time 40087Unsigned Integer

1 R/WSets the period between timer on events (mins)

Setup/Relay 1/Timer Off Delay 40088Unsigned Integer

1 R/WSets the time the affected Sensor outputs are held/transferred after the timer turns off (sec)

Setup/Relay 1/Status Level 40089Unsigned Integer

1 R/WSets the status level which will trigger the relay





































#Data Type


56

Modbus Protocol




















1 R/W
































#Data Type


57

Modbus Protocol





































1 R/W















#Data Type


58

Modbus Protocol

Comm/Net Card Mode 40170Unsigned Integer

1 R/WSets the Modbus mode (0 = RTU; 1 = ASCII)

Comm/Net Card Baud 40171Unsigned Integer

1 R/WSets the Modbus baud rate (0 = 9600; 1 = 19200; 2 = 38400; 3 = 57600;

4 = 115200)

Comm/Net Card Stop Bits 40172Unsigned Integer

1 R/W Sets the number of stop bits (1,2)

Comm/Net Card Data Order 40173Unsigned Integer

1 R/WSets the register data order for floats (0 = Normal; 1 = Reversed)

Comm/Net CardMin Response Time


1 R/WSets the minimum response time (0 to 30 sec)

Comm/Net CardMax Response Time


1 R/WSets the maximum response time (100 to 1000 sec)

Comm/Net Card/Addresses

sc100 40176Unsigned Integer

1 R/W Sets the sc100 Modbus Address


Sensor 1 40177Unsigned Integer

1 R/W Sets the Sensor 1 Modbus Address




Comm/Net Card/StatsGood Messages


2 R/W Number of good messages

Comm/Net Card/StatsBad Messages


2 R/W Number of failed messages

Comm/Net Card/Stats% Good Mesg

40183 Float 2 R/W % of good messages

Comm/Service Port Mode 40185Unsigned Integer

1 R/WSets the Modbus mode (0 = RTU; 1 = ASCII)

Comm/Service Port Baud 40186Unsigned Integer

1 R/WSets the Modbus baud rate (0 = 9600; 1 = 19200; 2 = 38400; 3 = 57600; 4 = 115200)

Comm/Service Port Stop Bits 40187Unsigned Integer

1 R/W Sets the number of stop bits (1,2)

Comm/Service Port Data Order 40188Unsigned Integer

1 R/WSets the register data order for floats (0 = Normal; 1 = Reversed)

Comm/Service PortMin Response Time


1 R/WSets the minimum response time (0 to 30 sec)

Comm/Service PortMax Response Time


1 R/WSets the maximum response time (100 to 1000 sec)

Comm/Service Port/Addresses

sc100 40191Unsigned Integer

1 R/W Sets the sc100 Modbus Address







Comm/Service Port/Stats

Good Messages





#Data Type


59

Modbus Protocol


Bad Messages




% Good Mesg


Comm/Sensor/ Sensor1 Stats

Good Messages




Bad Messages




% Good Mesg



Good Messages




Bad Messages




% Good Mesg


CalibrationOutput1 4mA count


1 R/W Calibration counts for the 4mA output 1












#Data Type



http://www.hach.com

61

Index

AAlarms ...................................................................... 18Analog Outputs ........................................................ 19

CCleaning

Controller ........................................................... 39Compliance Information ........................................... 43Components

Customer Supplied .............................................. 7Configuring

System ............................................................... 30Controller

Enclosure Description .......................................... 5

DDate

Setting ............................................................... 30Digital Output ........................................................... 23Display ..................................................................... 28

Contrast ............................................................. 29

EElectrical Installation ................................................ 13

Conduit .............................................................. 14Connecting/Wiring the Sensor Cable ................ 20Power Cord ........................................................ 14

Electrostatic Discharge ............................................ 13

FFuse

Rating ................................................................ 39Replacement ..................................................... 39

Hhard-wired electrical applications ............................. 14

IInstallation .................................................................. 9

Controller ........................................................... 11Panel ................................................................. 10Panel Mounting .................................................. 12Pipe Mounting .................................................... 11

Wall Mounting .................................................... 11

KKey

Functions ........................................................... 27Keypad ..................................................................... 27

LLanguage

Displayed ........................................................... 29

MModbus RS232 .................................................. 24, 41Modbus RS485 ........................................................ 41

OOutput

Connections ....................................................... 20Outputs .................................................................... 19

PParts ......................................................................... 41

RRelays ...................................................................... 18

Connecting .................................................. 18, 19Specifications ...................................................... 3

Replacement ............................................................ 41

SSecurity

Setup ................................................................. 37System ............................................................... 31

Specifications ............................................................. 3

TTime

Setting ............................................................... 30

WWarranty .................................................................. 47Wire preparation ...................................................... 15Wiring Saftey ............................................................ 13


http://www.hach.com

Catalog Number 57900-18

LDO™ Dissolved Oxygen Sensor

USER MANUAL

February 2005, Edition 5

© Hach Company, 2003–2005. All rights reserved. Printed in the U.S.A. eac/dp

Visit http://www.hach.com

3

Table of Contents

Section 1 Specifications......................................................................................................................................... 5

Section 2 General Information ............................................................................................................................... 72.1 Safety Information ............................................................................................................................................... 7

2.1.1 Use of Hazard Information......................................................................................................................... 72.1.2 Precautionary Labels................................................................................................................................. 7

2.2 General Sensor Information ................................................................................................................................ 82.3 Theory of Operation ............................................................................................................................................ 8

Section 3 Installation .............................................................................................................................................. 93.1 Connecting/Wiring the Sensor to the sc100 Controller ....................................................................................... 9

3.1.1 Connecting the sc Sensor in a Non-hazardous Location .......................................................................... 93.1.1.1 Attaching a sc Sensor with a Quick-connect Fitting ......................................................................... 93.1.1.2 Hard-wiring a sc Sensor to the Controller ...................................................................................... 10

3.1.2 Connecting the sc Sensor to a Controller in a Hazardous Location ........................................................ 123.1.2.1 Attaching a sc Sensor with a Quick-connect Fitting in a Hazardous Location ............................... 12

3.2 Connecting the Sensor to the sc1000............................................................................................................... 133.2.1 Connecting the Sensor using the Quick-connect Fittings........................................................................ 13

3.3 Installing the Sensor in the Sample Stream...................................................................................................... 13

Section 4 sc100 Operations ................................................................................................................................. 154.1 Using the sc100 Controller................................................................................................................................ 15

4.1.1 sc100 Display Features ........................................................................................................................... 164.1.2 Important Key Presses ............................................................................................................................ 16

4.2 Sensor Setup .................................................................................................................................................... 174.2.1 Changing the Sensor Name .................................................................................................................... 17

4.3 Sensor Data Logging ........................................................................................................................................ 174.3.1 Sensor Data Logging............................................................................................................................... 17

4.4 Sensor Diagnostics Menu ................................................................................................................................. 184.5 Sensor Setup Menu .......................................................................................................................................... 184.6 Pressure and Elevation ..................................................................................................................................... 19

4.6.1 Selecting Atmospheric Pressure Units/Setting ........................................................................................ 204.7 Calibration ......................................................................................................................................................... 21

4.7.1 Calibration in Air ...................................................................................................................................... 214.7.2 Sample Cal—Calibration by Comparison to a Winkler Titration .............................................................. 224.7.3 Sample Cal—Calibration by Comparison to a Hand-held DO Analyzer .................................................. 234.7.4 Concurrent Calibration of Two Sensors ................................................................................................... 23

Section 5 sc1000 Operation ................................................................................................................................. 255.1 Using the sc1000 Controller.............................................................................................................................. 25

5.1.1 Display Features...................................................................................................................................... 255.1.1.1 Using the Pop-up Toolbar .............................................................................................................. 255.1.1.2 Using the Menu Windows .............................................................................................................. 255.1.1.3 Navigating the Menu Windows....................................................................................................... 26

5.2 Sensor Setup .................................................................................................................................................... 285.3 Sensor Data Logging ........................................................................................................................................ 295.4 Sensor Status Menu.......................................................................................................................................... 295.5 Sensor Setup .................................................................................................................................................... 295.6 Pressure and Elevation ..................................................................................................................................... 31

5.6.1 Selecting Atmospheric Pressure ............................................................................................................. 315.7 Calibration ......................................................................................................................................................... 32

5.7.1 Calibration in Air ...................................................................................................................................... 32

4

Table of Contents

5.7.2 Sample Cal—Calibration by Comparison to a Winkler Titration...............................................................335.7.3 Sample Cal—Calibration by Comparison to a Hand-held DO Analyzer...................................................335.7.4 Concurrent Calibration of Two Sensors....................................................................................................34

Section 6 Maintenance ..........................................................................................................................................356.1 Maintenance Schedule ......................................................................................................................................356.2 Cleaning the Sensor ..........................................................................................................................................35

Section 7 Troubleshooting....................................................................................................................................377.1 Error Codes .......................................................................................................................................................377.2 Warnings ...........................................................................................................................................................37

Section 8 Replacement Parts and Accessories..................................................................................................39

Section 9 How to Order .........................................................................................................................................41

Section 10 Repair Service.....................................................................................................................................42

Section 11 Limited Warranty ................................................................................................................................43

Section 10 Compliance Information ....................................................................................................................45

5

Section 1 Specifications

Specifications are subject to change without notice.

Table 1 LDO Probe Specifications

ComponentsCorrosion-resistant materials, fully-immersible sensor with 10 m (30 foot) cable

Measuring Range (Dissolved Oxygen) 0 to 20.00 ppm (0 to 20.00 mg/L) or 0 to 200% saturation

Measuring Range (Temperature) 0 to 50 °C (32 to 122 °F)

Measurement Accuracy Below 1 ppm: ± 0.1; Above 1 ppm: ±0.2

Temperature Accuracy ±0.2 °C

Repeatability ±0.5% of span

Response TimeTo 90% in less than 40 secondsTo 95% in less than 60 seconds

ResolutionBelow 10 ppm: ±0.07 ppm or mg/L, ±0.1% saturation

Above 10 ppm: ±0.01 ppm or mg/L, ±0.1% saturation

InterferencesNo interferences from the following: H2S, pH, K+1, Na+1, Mg+2, Ca+2, NH4

+1,

Al+3, Pb+2, Cd+2, Zn+2, Cr (tot), Fe+2, Fe+3, Mn+2, Cu+2, Mi+2, Co+2, CN–1, NO3

–1, SO4–2, S–2, PO4

+3, Cl–1, Anion Active Tensides, Crude Oils, Cl2–1

Probe Operating Temperature 0 to 50 °C (32 to 122 °F)

Probe Storage Temperature –20 to 70 °C (–4 to 158 °F); 95% relative humidity, non-condensing.

Minimum Flow Rate Non required

Sensitivity ±0.5% of span

Calibration/VerificationAir Calibration: one point, 100% water saturated air; Sample Calibration: comparison to standard instrument, or comparison to Winkler Titration method

Probe Immersion Depth and Pressure Limits Submersible to 107 m (350 ft)/1050 kPa (150 psi)

Sensor Interface Modbus

Sensor Cable

10 m (30 ft) integral cable with quick-disconnect type plug. Additional cable length may be added by using a junction box. Up to 100 m with extension cables.Up to 1000 m using the Junction box.

Probe Weight 1.4 kg (3 lb, 2 oz.)

Probe Dimensions 60 x 292 mm (2.4 x 11.5 inch)

WarrantiesProbe: 3 yearsSensor Cap: 1 year


http://www.hach.com

7

Section 2 General Information

2.1 Safety Information

Please read this entire manual before unpacking, setting up, or operating this equipment. Pay attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage to the equipment.

To ensure that the protection provided by this equipment is not impaired, do not use or install this equipment in any manner other than that specified in this manual.

This product is acceptable for use in a Hazardous Location when used with an sc100 Controller and installed per Control Drawing 58600-78 as described in the sc100 Controller Manual, Cat. No. 5860018.

2.1.1 Use of Hazard Information

DANGERIndicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious injury.

CAUTIONIndicates a potentially hazardous situation that may result in minor or moderate injury.

Important Note: Information the requires special emphasis.

Note: Information that supplements points in the main text.

2.1.2 Precautionary Labels

Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed.

This symbol, if noted on the instrument, references the instruction manual for operation and/or safety information.

This symbol, when noted on a product enclosure or barrier, indicates that a risk of electrical shock and/or electrocution exists.

This symbol, if noted on the product, indicates the need for protective eye wear.

This symbol, when noted on the product, identifies the location of the connection for Protective Earth (ground).

This symbol, when noted on the product, identifies the location of a fuse or current limiting device.

8

General Information

2.2 General Sensor Information

The Luminescent Dissolved Oxygen (LDO) Sensor (Figure 1) allows aqueous samples to be easily and accurately analyzed for dissolved oxygen concentration. Specially designed for municipal and industrial wastewater applications, the system consists of a controller with an integrated display, and a sensor (probe with sensor cap) for in-situ measurement.

The LDO sensor can be operated using the sc100 controller and the sc1000 controller. Refer to sc100 Operations on page 15 and sc1000 Operation on page 25 for more information.

Optional equipment, such as mounting hardware for the sensor, is supplied with an instruction sheet for all user installation tasks. Several mounting options are available, allowing the sensor to be adapted for use in many different applications.

Typical applications include aeration basins, nutrient removal in equalization basins, aerobic and anaerobic digesters, effluent streams, rivers, lakes, and fish ponds.

Figure 1 LDO Sensor Dimensions

2.3 Theory of Operation

The sensor in the cap is coated with a luminescent material. Blue light from an LED illuminates the luminescent chemical on the surface of the sensor cap. The luminescent chemical instantly becomes excited and then as the excited chemical relaxes, it releases red light. The red light is detected by a photodiode and the time it takes for the chemical to return to a relaxed state is measured. The higher the oxygen concentration, the less red light is given off by the sensor and the shorter time it takes for the luminescent material to return to a relaxed state. The oxygen concentration is inversely proportional to the time it takes for the luminescent material to return to a relaxed state.

Unlike electrochemical dissolved oxygen sensor technologies, the Luminescent Dissolved Oxygen (LDO) sensor does not consume oxygen. It does not require frequent recalibration or frequent cleaning (except when associated with consumptive slimes), resulting in longer sensor life and more stable and accurate readings. The system is also flow-independent so measurements can be made in applications with low or no flow.

7

Section 2 Installation


DANGERSeul un technicien qualifié peut effectuer les tâches d'installation décrites dans cette section du manuel.

The LDO system can be used with either an sc100 or sc1000 controller. Refer to section 2.1 for sc100 installation instructions and section 2.2 on page 11 for sc1000 installation instructions.

2.1 Connecting/Wiring the Sensor to the sc100 Controller

DANGERThe sc100 and certain versions of the sensor are suitable for use in Class 1, Division 2, Groups A, B, C, D Hazardous Locations . See Control Drawing 58600-78 in the sc100 Controller Manual, Cat. No. 58600-18 for acceptable sensor versions and installation requirements.

DANGERLe sc100 et certaines versions du capteur peuvent être utilisés dans des endroits dangereux de la Classe 1, Division 2, Groupes A, B, C, D. Reportez-vous au schéma de contrôle 58600-78 du Manuel du contrôleur sc100, Réf. 58600-18 pour connaître les versions des capteurs admises et les conditions d'installation.

2.1.1 Connecting the sc Sensor in a Non-hazardous Location

2.1.1.1 Attaching a sc Sensor with a Quick-connect Fitting

Important Note: The standard quick-connect fitting is NOT suitable for Class 1, Division 2 Hazardous Location installations without the connector lock installed, see section 2.1.2 on page 10 for more information.

The sensor cable is supplied with a keyed quick-connect fitting for easy attachment to the controller (Figure 1). Retain the connector cap to seal the connector opening in case the sensor must be removed. Optional extension cables may be purchased to extend the sensor cable length. If the total cable length exceeds 100 m (300 ft), a termination box must be installed.

Note: Use of a load termination box other than Cat. No. 5867000 may result in a hazard. The load termination box cannot be used in a hazardous location.

8

Installation

Figure 1 Attaching the Sensor using the Quick-connect Fitting

2.1.1.2 Hard-wiring a sc Sensor to the Controller

Important Note: Hard-wiring the sensor to the sc100 is not an approved method for Class I, Division 2 Hazardous Locations.

1. Disconnect power to the controller if powered.

2. Open the controller cover.

3. Disconnect and remove the existing wires between the quick-connect and terminal strip J5, see Figure 2 on page 9.

4. Remove the quick-connect fitting and wires and install the threaded plug on the opening to maintain the environmental rating.

5. Cut the connector from the sensor cable.

6. Strip the insulation on the cable back 1-inch. Strip ¼-inch of each individual wire end.

7. Pass the cable through conduit and a conduit hub or a strain relief fitting (Cat. No. 16664) and an available access hole in the controller enclosure. Tighten the fitting.

Note: Use of strain relief fitting other than Cat. No. 16664 may result in a hazard. Use only the recommended strain relief fitting.

8. Reinstall the plug on the sensor access opening to maintain the environmental rating.

9. Wire as shown in Table 2 and Figure 2.

10. Close and secure the cover.

NCNCNC COMCOMCOM NO

F1

F2

NONO


J1

J2

J4

S1

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

PCBCONNECTOR

PCBCONNECTOR










NCNCNC COMCOMCOM NO

F1

F2

NONO


J1

J2

J4

S1

NETWORKINTERFACE

CARD

J3

J5

J6

U5

U9

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

PCBCONNECTOR

PCBCONNECTOR










J5J5

9

Installation

Figure 2 Hard-wiring the Sensor

Table 2 Wiring the Sensor at Terminal Block J5

Terminal Number Terminal Designation Wire Color

1 Data (+) Blue

2 Data (–) White

3 Service Request No Connection

4 +12 VDC Brown

5 Circuit Common Black

6 Shield Shield (grey wire in existing quick-disconnect fitting)

1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR










NCNCNC COMCOMCOM NO

F1

F2

NONO


1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR





J1

J2

J4

NETWORKINTERFACE

CARD

J3

U5

U9

S1






1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR










NCNCNC COMCOMCOM NO

F1

F2

NONO


1

1

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

2

2

3

3

4

4

5

5

6

PROB

ESAN

ALOG

OUT

PUTS

ANAL

OG O

UTPU

TS

PCBCONNECTOR

PCBCONNECTOR





J1

J2

J4

NETWORKINTERFACE

CARD

J3

U5

U9

S1






J6

J5J5J5J5

DisconnectPower

From Probe

10

Installation

2.1.2 Connecting the sc Sensor to a Controller in a Hazardous Location

DANGERThe sc100 and certain versions of the sensor are suitable for use in Class 1, Division 2, Groups A, B, C, D Hazardous Locations . See Control Drawing 58600-78 in the sc100 Controller Manual, Cat. No. 58600-18 for acceptable sensor versions and installation requirements.

DANGERLe sc100 et certaines versions du capteur peuvent être utilisés dans des endroits dangereux de la Classe 1, Division 2, Groupes A, B, C, D. Reportez-vous au schéma de contrôle 58600-78 du Manuel du contrôleur sc100, Réf. 58600-18 pour connaître les versions des capteurs admises et les conditions d'installation.


DANGERRisque d’explosion. Couper le courant ou s’assurer que l’emplacement est designe non dangereux avant de replacer le aucon composant.

2.1.2.1 Attaching a sc Sensor with a Quick-connect Fitting in a Hazardous Location

The sensor cable is supplied with a keyed quick-connect fitting for easy attachment to the controller, see Figure 1. For hazardous locations, a connector safety lock (Cat. No. 6139900) must be installed. Retain the connector cap to seal the connector opening in case the sensor must be removed.

Important Note: The load termination box (Cat. No. 5867000) cannot be used in a hazardous location.

1. Remove the connector cap from sc100 controller. Retain the connector cap to seal the connector opening in case the sensor must be removed.

2. Connect the sensor connector to the plug on the sc100.

3. Install a connector safety lock (Figure 3). Align the lock over the connector and squeeze the two halves together to lock. To remove the connector safety lock by inserting a small flat-bladed screwdriver into the locking groove. Pivot the screwdriver away from the groove and separate the two halves (Figure 3).

Figure 3 Installing the Connector Safety Lock



11

Installation

2.2 Connecting the Sensor to the sc1000

2.2.1 Connecting the Sensor using the Quick-connect Fittings

1. Unscrew the connector cap from the controller. Retain the connector cap to seal the connector opening in case the sensor must be removed.

2. Push the connector into the socket.

3. Hand-tighten the union nut.

Note: Do not use the middle connection for the sensors as this is reserved for the display module.

2.3 Installing the Sensor in the Sample Stream

To install the LDO in a sample stream, it is recommended to use either the optional pole mount (Cat. No. 57944-00) or ball float mount (Cat. No. 57943-00) as shown in Figure 4. Please refer to the instruction sheets provided with these mounting kits for more detailed information.

12

Installation

Figure 4 Optional Pole Mount (Cat. No. 57944-00) and Ball Float Mount (57943-00) Installation

1. Pipe locking knob 4. Position pin removed for float assembly

2. Pipe locking knob 5. Adjustable angle (using position pin)

3. Position pin

aaaaaaaaaaaaaaaaaa

aaaaaaaaaaaaaaaaaa

4

5

1

23

1

15

Section 4 sc100 Operations

4.1 Using the sc100 Controller

The front of the controller is shown in Figure 6. The keypad consists of the eight keys described in Table 3.

Figure 6 Front of the Controller

1. Instrument display 5. IrDA Port

2. BACK key 6. HOME key

3. MENU key 7. ENTER key

4. RIGHT, LEFT, UP, and DOWN keys

Table 3 Controller Key Functions/Features

Number Key Function

2 Moves back one level in the menu structure.

3Moves to the main menu from other menus. This key is not active in menus where a selection or other input must be made.

4 Navigates through the menus, changes settings, and increments and decrements digits.

6Moves to the Main Measurement screen from any other screen. This key is not active in menus where a selection or other input must be made.

7 Accepts an input value, updates, or accepts displayed menu options.

sc100

1

2 6

5

3 7

4

16

sc100 Operations

4.1.1 sc100 Display Features

When a sensor is connected and the controller is in measurement mode, the controller display will show the current dissolved oxygen reading plus the sample temperature. On startup, when a sensor error has occurred, when the hold outputs function has been activated, and when a sensor is being calibrated, the display will flash.

An active system warning will cause the warning icon (a triangle with an exclamation point inside) to be displayed on the right side of the display.

Figure 7 Display

4.1.2 Important Key Presses

• Press the HOME key then the RIGHT or LEFT key to display two readings when two sensors are connected. Continue to press the RIGHT or LEFT key to toggle through the available display options as shown below.

• Press the UP and DOWN keys to toggle the status bar at the bottom of the measurement display to display the secondary measurement (temperature) and output information.

• When in Menu mode, an arrow may appear on the right side of the display to indicate that more menus are available. Press the UP or DOWN key (corresponding to the arrow direction) to display additional menus.

1. Status bar. Indicates the sensor name and status of relays. The relay letter is displayed when the relay is energized.

4. Parameter

2. Main measurement 5. Warning icon area

3. Secondary measurement 6. Measurement units

8.44SENSOR NAME:

TEMP:23.0°Cppm

O21

2

3

6

5

4

SENSOR NAME 1:8.44 02 ppm

SENSOR NAME 2:7.15 02 ppm

MAIN MEASUREDO:

8.44 02 ppmTEMP:

22.9°C

SENSOR NAME 1:DO:

7.15 02 ppmTEMP:

22.9°C

SENSOR NAME 2:

ppm

02

24:00:00RTC:MM/DD/YY

OUTPUT1: 11.23 mA

8.44SENSOR NAME 1:

TEMP: 22.9°Cppm

02

7.15SENSOR NAME 2:

TEMP: 22.9°Cppm

02

8.44SENSOR NAME:

TEMP:23.0°C

8.44SENSOR NAME:

OUTPUT1: 11.19mAppm

02

8.44SENSOR NAME:

OUTPUT2: 9.70 mAppm

02

ppm

02

SENSOR DIAGSENSOR SETUP

TEST/MAINT

MAIN MENU

SYSTEM SETUP

OUTPUT SETUPSYSTEM SETUP

NETWORK SETUPRELAY SETUP

DISPLAY SETUP

DISPLAY SETUPSYSTEM SETUP

LOG SETUPSECURITY SETUP

CALCULATION

SECURITY SETUPSYSTEM SETUP

CALCULATIONLOG SETUP

ERROR HOLD MODE

17

sc100 Operations

4.2 Sensor SetupWhen a sensor is initially installed, the serial number of the sensor will be displayed as the sensor name. To change the sensor name refer to the following instructions:

4.3 Sensor Data LoggingThe sc100 provides three data logs (one for each sensor and one for calculated values) and three event logs (one for each sensor and one for the controller). The data logs store the measurement data at selected intervals. The event log stores a variety of events that occur on the devices such as alarms and warning conditions. The data logs are stored in a packed binary format and the event logs are stored in a CSV format. The logs can be downloaded through the digital network port, service port, or the IrDA port. DataCom is needed for downloading logs to a computer.

4.2.1 Changing the Sensor Name


1 MAIN MENU —

2 SENSOR SETUP

3 Highlight the appropriate sensor if more than one sensor is attached.

4 CONFIGURE

5 — EDIT NAME

6

Select the character to edit. —

Choose the appropriate digit.


4.3.1 Sensor Data Logging


1 MAIN MENU —

2 SENSOR SETUP


4 CONFIGURE

5 LOG SETUP

6 Choose from the displayed logging interval options.


18

sc100 Operations

4.4 Sensor Diagnostics MenuSELECT SENSOR

ERROR LIST—See section 6.1 on page 35.

WARNING LIST—See section 6.2 on page 35.

4.5 Sensor Setup MenuSELECT SENSOR (if more than one sensor is attached)

CALIBRATE

AIR CAL

Perform an air calibration of the sensor (slope calibration). See section 4.7.1 on page 21.

SAMPLE CAL

Enter a value for the DO concentration as determined by another sensor or independent method. The instrument performs an offset calibration based on the entered value. See section 4.7.2 on page 22 and section 4.7.3 on page 23.

SET CAL DEFLT

Restores the gain and offset values to 1.0 and 0.0, respectively, and restores the Sensor Cap Code to default.

CONFIGURE

EDIT NAME

Enter up to a 10-digit name in any combination of symbols and alpha or numeric characters.

ALT/PRESS UNITS

Choose pressure units in feet, meters, mm Hg, or torr.

ALT/PRESS

Enter either altitude or air pressure. Correlates to the pressure units setting. Range: -5000–15000Note: The Alt/Press setting must be correct for proper measurement of % saturation and proper operation of air calibration.

TEMP UNITS

Select Celsius or Fahrenheit.

MEAS UNITS

Select the appropriate measurement units to display. Choose from: mg/L, ppm, or percent.

SALINITY

User-entered value. Range: 0.00–250.00 parts per thousand salinity

SENSOR CODE

Enter the unique code supplied with each sensor cap. The code ensures the preprogrammed factory calibration is adjusted for each sensor cap. The code consists of either 10-digits or 3-digits followed by a period. The period following the three digit code must be entered to complete the code entry.

SET DEFAULTS

Resets the sensor configuration to default settings.

SIGNAL AVE

Averages readings over a specified time interval. Default is 60 sec. Increase response by decreasing the time interval. Fastest response is at 0 sec.

LOG SETUP

Allows user to select data logging interval of DO and temperature readings.

19

sc100 Operations

4.6 Pressure and ElevationNote: If the barometric pressure from Table 4 is entered in the meter, the altitude entered in combination with this value must be 0 feet.

Table 4 can be used to estimate the true barometric pressure at certain elevations. The correspondence is based on the assumption that at sea level the barometric pressure is 760 mm Hg. After determining the barometric pressure from the table or obtaining it from a local weather service, enter this value into the instrument, see section 4.6.1 on page 20.

DIAG/TEST

SOFTWARE VERS.

Displays the software version number

DRIVER VERS

Displays the software driver version number.

GAIN CORR

User Editable—to change the calibration gain. Range: 0.000–3.0

OFFSET CORR

User Editable—to change the calibration offset. Range: -3.0–3.0

PHASE DIAG

Information only—updated once per second

AMPL DIAG


SERIAL NUMBER

Serial number of the sensor

4.5 Sensor Setup Menu (continued)

Table 4 Elevation Barometric Pressure

Elevation in feet Barometric pressure in mm Hg Elevation in feet Barometric pressure in mm Hg

0 760 6000 613

500 746 6500 601

1000 733 7000 590

1500 720 7500 579

2000 708 8000 568

2500 695 8500 559

3000 683 9000 548

3500 671 9500 538

4000 659 10000 527

4500 647 10500 517

5000 635 11000 506

5500 624 — —

20

sc100 Operations

4.6.1 Selecting Atmospheric Pressure Units/Setting


1 MAIN MENU —

2 SENSOR SETUP


4 CONFIGURE

5 AIR PRESS/ALT UNITS

6

Select the appropriate units. —

AIR PRESS/ALTAir Pressure/Alt must be correct for proper measurement of % saturation and proper

operation of air calibration.

7 Change the value.


21

sc100 Operations

4.7 Calibration

The dissolved oxygen sensor has been calibrated at the factory to the specifications listed on Specifications on page 5. Due to the inherent accuracy and stability of the luminescent dissolved oxygen technology, sensor calibration is seldom or never necessary. The calibration procedures will result in an instrument offset or gain correction and may be performed if required by regulatory agencies. The air calibration is the most accurate method. The calibration by comparison method is the least accurate and is therefore not recommended.

For continued accuracy and repeatability, the manufacturer recommends replacing the sensor cap after one year of operation.

4.7.1 Calibration in Air


1 —Remove the sensor from the process stream and wipe with a wet cloth to remove

debris and biological growth. —

2 —Place the sensor in the supplied Calibration Bag, add a small amount of water

(25–50 mL) and secure the bag to the sensor body.—

3 — Lay bagged probe on a flat surface where it will not be exposed to a heat source. —

4 MAIN MENU —

5 SENSOR SETUP


7 CALIBRATE

8 AIR CAL

9 Choose from the available Output Mode options (Active, Hold, or Transfer).

10 — “Move the sensor to air”. The sensor has been moved to air (in the calibration bag).

11 —The Air Calibration procedure will begin and “Wait to Stabilize”, the current DO and

temperature readings will be displayed.

12 —

The calibration will automatically occur when the reading stabilizes or when ENTER is selected to base the calibration on the currently displayed value. Two to three

minutes for the reading to stabilize is typical, however, if it has not stabilized after 45 minutes, the display will ready “Unable to Calibrate”.

After calibration, one of the responses in Table 5 on page 24 will be displayed.

13 Follow the prompts to return the sensor to the process —

22

sc100 Operations

4.7.2 Sample Cal—Calibration by Comparison to a Winkler Titration


1 —Remove the sensor from the process stream and gently wipe with a wet cloth to remove all debris and biological growth. Remaining debris will affect the Winkler

Method of analysis. —

2 —Measure 1000 mL of deionized water. Allow the water to come to thermal and

dissolved oxygen equilibrium (approximately 20 minutes). —

3 —Fill a standard BOD bottle and then place the sensor in a beaker containing the

remainder of the deionized water.—

4 —Perform the Winkler titration using Cat. No. 1469-00 Winkler Test kit on the deionized

water in the BOD bottle while waiting for the process sensor to stabilize.—

5 MAIN MENU —

6 SENSOR SETUP


8 CALIBRATE

9 SAMPLE CAL

10Choose from the available Output Mode options (Active, Hold, or Transfer). An output that has been placed in Hold or Transfer status will be automatically released when

the calibration is complete.

11 — Move probe to the sample.

12

The display will show “Press Enter when Stabilized” and the current DO and temperature readings. When ENTER is pressed or when the reading has been accepted as stable, the display will change to an entry screen. If ENTER is not

pressed, the sensor will determine when the reading is stable. Two to three minutes for the reading to stabilize is typical, however, if it has not stabilized after 45 minutes,

the display will show “Unable to Calibrate”.

13 —When a stable reading has been accepted, the display will show “Sample Cal” and

an area for entry of the value obtained from the Winkler Titration. —

14 Change the displayed reading.

15 — One of the following responses in Table 5 on page 24 will be displayed. —

23

sc100 Operations

4.7.3 Sample Cal—Calibration by Comparison to a Hand-held DO Analyzer


1 Place the dissolved oxygen sensor as close to the LDO sensor as possible. —

2 Wait for the hand-held DO analyzer to stabilize.

3 MAIN MENU —

4 SENSOR SETUP


6 CALIBRATE

7 SAMPLE CAL

8 Choose from the available Output Mode options (Active, Hold, or Transfer).

9

The display will show “Press Enter when Stabilized” and the current DO and temperature readings. When ENTER is pressed or when the reading has been accepted as stable, the display will change to an entry screen. If ENTER is not

pressed, the sensor will determine when the reading is stable. Two to three minutes for the reading to stabilize is typical, however, if it has not stabilized after 45 minutes,

the display will show “Unable to Calibrate”.

10 —When a stable reading has been accepted, the display will show “Sample Cal” and

an area for entry of the value obtained from the comparison instrument. —

11 Change the displayed reading to match the hand-held DO analyzer reading.

12 — One of the responses in Table 5 on page 24 will be displayed. —

4.7.4 Concurrent Calibration of Two Sensors


1 — Begin a calibration on the first sensor and proceed to “Wait to Stabilize” is displayed.

2 — Select LEAVE

3 —The display will return to the main measurement screen. The reading for the sensor

currently being calibrated will be flashing. —

4 —Begin the calibration for the remaining sensor and proceed to “Wait to Stabilize” is

displayed.

5 — Select LEAVE.

6 —The display will return to the main measurement screen and the reading for both

sensors will be flashing.

7 —To return to the calibration of either sensor, press MENU, select Probe Setup and

ENTER. Select the appropriate sensor and ENTER.

24

sc100 Operations

Table 5 Calibration Response

Calibration Response Explanation

Cal Complete Indicates the Calibration is complete.

Cal Fail, Offset HIghIndicates the air calibration has failed due to an excessively high calculated gain value. Repeat the calibration.

Cal Fail, Offset LowIndicates the air calibration has failed due to too low of a calculated gain value. Repeat the calibration.

Cal Fail, UnstableIndicates the air calibration has failed because the readings did not stabilize during the maximum allowed calibration time interval. Repeat the calibration.

25

Section 5 sc1000 Operation

5.1 Using the sc1000 Controller

The sc1000 is a touch screen application. Use your finger to touch keys and menu commands. In normal operation the touch screen displays the measured values for the sensors selected.

5.1.1 Display Features

5.1.1.1 Using the Pop-up Toolbar

The pop-up toolbar provides access to the controller and sensor settings. The toolbar is normally hidden from view. To view the toolbar, touch the bottom-left of the screen.

Figure 8 Pop-up Toolbar Functions

5.1.1.2 Using the Menu Windows

If the Menu button (from the pop-up toolbar) is selected, the Main Menu screen is opened. The Main Menu screen allows the user to view the sensor status, configure the sensor setup, system setup, and perform diagnostics.

The menu structure may vary depending on the configuration of the system.

MAIN MENU–displays the Main Menu Structure

UP Arrow–scrolls up to the previous displayed value.

Displays one value.

Displays two values at the same time.

Displays four values at the same time.

LIST–displays the list of connected devices and sensors.

DOWN Arrow–scrolls down to the next displayed value.

1 2 4

1

2

4

26

sc1000 Operation

Figure 9 Main Menu

5.1.1.3 Navigating the Menu Windows

To view a menu item, touch the menu item or use the UP and DOWN keys to highlight the item. The menu item remains highlighted for approximately 4 seconds after it is selected. To view the highlighted command, select the area to the left of the menu item or select the ENTER button.

A “+” next to a menu command indicates there is a submenu. Touch the “+” to view the submenu. An “i” next to a menu command indicates it is information only.

If a menu item is editable, highlight the item and touch the far-left part of the menu item until it is highlighted and press ENTER or double-tap the highlighted item. A keypad will be displayed to change an entry (Figure 11 on page 27) or a list box will be displayed (Figure 12 on page 28).

Messages are displayed in the message window (Figure 13 on page 28).

If an entry is incorrect, repeat the entry with the correct values. If the entry is outside the working range, a correction to the entry is made automatically.

1. Display Area

2. BACK

3. FORWARD

4. ENTER–confirms the entry or selection.

5. HOME–changes to the display of measured values. The pop-up toolbar cannot open from the menu window. To view the Main Menu from this display, touch the Home button and then the bottom of the screen.

6. UP–scrolls up

7. DOWN–scrolls down

MENU

SENSOR STATUS

SENSOR SETUP

SYSTEM SETUP

TEST/MAINT

1

6

7

2 3 4 5

27

sc1000 Operation

Figure 10 Changing a Menu Item

Figure 11 Keypad

1. Display Area 5. HOME–changes to the display of measured values.

2. BACK 6. UP–scrolls up

3. FORWARD 7. DOWN–scrolls down


1. Enters numbers or the character as shown on the button.

2. Moves the cursor one position to the left or to the right.

3. Increase/Decrease a number or letter at the cursor position. Keep the button pressed to change the numbers/characters continuously.

4. Deletes the character to the left of the cursor.

5. CANCEL–cancels the entry.


1 2 3 :

4 5 6 /

7 8 9 0

4

5

6

1 32

28

sc1000 Operation

Figure 12 List Box

Figure 13 Message window

5.2 Sensor Setup

When a sensor is initially installed, the serial number of the sensor will be displayed as the sensor name. To change the sensor name refer to the following instructions:

1. Tap the bottom-left of the screen to display the pop-up toolbar and press MAIN MENU.

2. From the Main Menu, select SENSOR SETUP and press ENTER.

3. Highlight the appropriate sensor if more than one sensor is attached and press ENTER.

4. Select CONFIGURE and press ENTER.

5. Select EDIT NAME and tap on the dark-blue highlighted area to the far-right. Use the keypad to edit the name. Press ENTER to confirm or CANCEL to return to the Sensor Setup menu.

1. Scrolls up or down

2. CANCEL–cancels and entry.

3. ENTER–confirms a selection.

1. Scrolls up or down.

2. Displays the messages or warnings.

3. Displays details on the selected entry.

4. This button changes back to the previous display.

5. ENTER–confirms an entry.

6. CANCEL–cancels an entry.

mg/lg/lppmmEEm-1FNUNTU

1

2

3

5

6

2

COMMUNICATION ERROR

Ph [11f20030007]

1 3 4

29

sc1000 Operation

5.3 Sensor Data Logging

The sc1000 provides a data log for each sensor.



3. Highlight the appropriate sensor if more than one sensor is attached and press ENTER.


5. Select LOG SETUP and press ENTER.

6. Select from the logging interval options from the list box and press ENTER

5.4 Sensor Status MenuSELECT SENSOR

ERROR LIST—See section 6.1 on page 35.

WARNING LIS—See section 6.2 on page 35.

5.5 Sensor SetupSELECT SENSOR (if more than one sensor is attached)

CALIBRATE

AIR CAL

Perform an air calibration of the sensor (slope calibration). See section 5.7.1 on page 32.

SAMPLE CAL

Enter a value for the DO concentration as determined by another sensor or independent method. The instrument performs an offset calibration based on the entered value. See section 5.7.2 on page 33 and section 5.7.3 on page 33.

SET CAL DEFLT

Restores the gain and offset values to 1.0 and 0.0, respectively, and restores the sensor code to default.

CONFIGURE

EDIT NAME

Enter up to a 10-digit name in any combination of symbols and alpha or numeric characters.

ALT/PRESS UNITS

Choose pressure units in feet, meters, mm Hg, or torr.

ALT/PRESS

Enter either altitude or air pressure. Correlates to the pressure units setting. Range: -5000–15000

Note: The Alt/Press setting must be correct for proper measurement of % saturation and proper operation of air calibration.

30

sc1000 Operation

CONFIGURE (continued)

TEMP UNITS

Select Celsius or Fahrenheit.

MEAS UNITS

Select the appropriate measurement units to display. Choose from: mg/L, ppm, or percent.

SALINITY

User-entered value. Range: 0.00–250.0 parts per thousand salinity

SENSOR CODE

Enter the unique code supplied with each sensor cap. The code ensures the preprogrammed factory calibration is adjusted for each sensor cap. The code consists of either 10-digits or 3-digits followed by a period. The period following the three digit code must be entered to complete the code entry.

SET DEFAULTS

Resets the sensor software to default settings.

SIGNAL AVE

Averages readings over a specified time interval. Default is 60 sec. Increase response by decreasing the time interval. Fastest response is at 0 sec.

LOG SETUP

Allows user to select data logging interval of DO and temperature readings.

DIAG/TEST

SOFTWARE VERS.

Displays the software version number

DRIVER VERS

Displays the software driver version number.

GAIN CORR

User Editable—to change the calibration gain. Range: 0.000–3.0

OFFSET CORR

User Editable—to change the calibration offset. Range: -3.0–3.0

PHASE DIAG


AMPL DIAG


SERIAL NUMBER

Serial number of the sensor

5.5 Sensor Setup (continued)

31

sc1000 Operation

5.6 Pressure and ElevationNote: If the barometric pressure from Table 6 is entered in the meter, the altitude entered in combination with this value must be 0 feet.

Table 6 can be used to estimate the true barometric pressure at certain elevations. The correspondence is based on the assumption that at sea level the barometric pressure is 760 mm Hg. After determining the barometric pressure from the table or obtaining it from a local weather service, enter this value into the instrument.

5.6.1 Selecting Atmospheric Pressure



3. Select the appropriate sensor if more than one is attached and press ENTER.


5. Select AIR PRESS/ALT UNITS and tap on the dark-blue highlighted area to the far-right. Select the appropriate units from the list box. Press ENTER to confirm the selection.

6. Select AIR PRESS/ALT and tap on the dark-blue highlighted are to the far-right. Change the value using the keypad and press ENTER to confirm the select.

Note: AirPress/Alt must be correct for proper measurement of % saturation and operation of air calibration.

Table 6 Elevation Barometric Pressure

Elevation in feet Barometric pressure in mm Hg Elevation in feet Barometric pressure in mm Hg

0 760 6000 613

500 746 6500 601

1000 733 7000 590

1500 720 7500 579

2000 708 8000 568

2500 695 8500 559

3000 683 9000 548

3500 671 9500 538

4000 659 10000 527

4500 647 10500 517

5000 635 11000 506

5500 624 — —

32

sc1000 Operation

5.7 Calibration

The dissolved oxygen sensor has been calibrated at the factory to the specifications listed on Specifications on page 5. Due to the inherent accuracy and stability of the luminescent dissolved oxygen technology, sensor calibration is seldom or never necessary. The calibration procedures will result in an instrument offset or gain correction and may be performed if required by regulatory agencies. The air calibration is the most accurate method. The calibration by comparison method is the least accurate and is therefore not recommended.

For continued accuracy and repeatability, the manufacturer recommends replacing the sensor cap after one year of operation.

5.7.1 Calibration in Air

1. Remove the sensor from the process stream and wipe with a wet cloth to remove debris and biological growth.

2. Place the sensor in the supplied Calibration Bag, add a small amount of water (25–50 mL) and secure the bag to the sensor body.

3. Lay the bagged probe on a flat surface where it will not be exposed to a heat source.




7. Select CALIBRATE and press ENTER.

8. Select AIR CAL and tap on the dark-blue highlighted area to the far-right. Select the available Output Mode (Active, Hold, or Transfer) from the list box and press ENTER to confirm.

9. “Move the sensor to air” will be displayed if the sensor is moved to air (in the calibration bag).

10. The Air Calibration procedure will begin and “Wait to Stabilize” will be displayed. The current DO and temperature readings will be displayed. Press ENTER to confirm?

11. The calibration will automatically occur when the reading stabilizes or when ENTER is selected to base the calibration on the currently displayed value. Two to three minutes for the reading to stabilize is typical, however, if it has not stabilized after 45 minutes, the display will ready “Unable to Calibrate”. After calibration, one of the responses in Table 7 on page 34 will be displayed.

12. Follow the prompts to return the sensor to the process.

33

sc1000 Operation

5.7.2 Sample Cal—Calibration by Comparison to a Winkler Titration





5. Select SAMPLE CAL and tap on the dark-blue highlighted area to the far-right. Select the available Output Mode (Active, Hold, or Transfer) from the list box and press ENTER.

Note: An output that has been placed in Hold or Transfer status will be automatically released when the calibration is complete.

6. Remove the sensor from the process stream and gently wipe with a wet cloth to remove all debris and biological growth. Remaining debris will affect the Winkler Method of analysis.

7. Measure 1000 mL of deionized water. Allow the water to come to the thermal and dissolved oxygen equilibrium (approximately 20 minutes).

8. Fill a standard BOD bottle and then place the sensor in a beaker containing the remainder of the deionized water.

9. Perform the Winkler Tritration using Cat. No. 1469-00 Winkler Test Kit on the deionized water in the BOD bottle while waiting for the process sensor to stabilize.

10. Move the sensor to the sample.

11. The display will show “Press ENTER when Stabilized” and the current DO and temperature readings. When ENTER is pressed or when the reading has been accepted as stable, the display will change to an entry screen. If ENTER is not pressed, the sensor will determine when the reading is stable. Two to three minutes for the reading to stabilize is typical, however, if it has not stabilized after 45 minutes, the display will show “Unable to Calibrate”.

12. When a stable reading has been accepted, the display will show “Sample Cal” and an area for entry of the value obtained from the comparison method. When the entry screen is displayed, enter the value from the hand-held or winkler titration and press ENTER.

13. After calibration, one of the responses in Table 7 on page 34 will be displayed.

5.7.3 Sample Cal—Calibration by Comparison to a Hand-held DO Analyzer

1. Place the dissolved oxygen sensor as close to the LDO sensor as possible.

2. Wait for the hand-held DO analyzer to stabilize.




34

sc1000 Operation


7. Select SAMPLE CAL and tap on the dark-blue highlighted area to the far-right. Select the available Output Mode (Active, Hold, or Transfer) from the list box and press ENTER to confirm.

8. The display will show “Press Enter when Stabilized” and the current DO and temperature readings. When ENTER is pressed or when the reading has been accepted as stable, the display will change to an entry screen. If ENTER is not pressed, the sensor will determine when the reading is stable. Two to three minutes for the reading to stabilize is typical, however, if it has not stabilized after 45 minutes, the display will show “Unable to Calibrate”.

9. When a stable reading has been accepted, the display will show “Sample Cal” and an area for entry of the value obtained from the Winkler Titration.

10. Change the displayed reading to match the hand-held DO analyzer memory.

11. After calibration, one of the responses in Table 7 on page 34 will be displayed.

5.7.4 Concurrent Calibration of Two Sensors

1. Begin a calibration on the first sensor and proceed when “Wait to Stabilize” is displayed.

2. Select the BACK arrow, then LEAVE. The display will return to the Main Measurement screen.

3. Begin the calibration for the second sensor and continue until “Wait to Stabilize” is displayed.

4. Select the BACK arrow, then LEAVE. The display will return to the Main Measurement screen and the reading for both sensors will be flashing.

5. To return to the calibration of either sensor, tap the bottom of the screen to display the pop-up toolbar. Select the Main Menu button. Select SENSOR SETUP and press ENTER. Select the appropriate sensor and ENTER.

6. The calibration in progress will be displayed. Continue with the calibration.

Table 7 Calibration Response

Calibration Response Explanation

Cal Complete Indicates the Calibration is complete.

Cal Fail, Offset HIghIndicates the air calibration has failed due to an excessively high calculated gain value. Repeat the calibration.

Cal Fail, Offset LowIndicates the air calibration has failed due to too low of a calculated gain value. Repeat the calibration.

Cal Fail, UnstableIndicates the air calibration has failed because the readings did not stabilize during the maximum allowed calibration time interval. Repeat the calibration.

33

Section 5 Maintenance


DANGERSeul un technicien qualifié peut effectuer les tâches d'installation décrites dans cette section du manuel.


DANGERRisque d’explosion. Couper le courant ou s’assurer que l’emplacement est designe non dangereux avant de replacer le aucon composant.

DANGERExplosion hazard. Substitution of components may impair suitability for Class 1, Division 2.

DANGERRisque d’explosion. La substitution de composants peut rendre ce materiel inacceptable pour les emplacements de Classe 1, Division 2.

5.1 Maintenance Schedule

5.2 Cleaning the Sensor

Clean the exterior of the sensor with a soft, wet cloth. If the sensor cap is removed from the sensor body, do not leave the interior of the cap exposed to sunlight. Sun exposure to the interior of the cap can adversely affect the performance of the sensor. Degradation from sunlight is only an issue if the sensor cap is off the sensor body and the interior of the sensor cap is exposed to sunlight.

Maintenance Task 90 days Annually

Clean the sensor1

1 Cleaning frequency is application dependent. More or less frequent cleaning will be appropriate in some applications.

x

Inspect sensor cap for damage x

Calibrate Sensor (if required by regulatory agency) Per the schedule mandated by your regulatory agency.


http://www.hach.com

35

Section 6 Troubleshooting

6.1 Error Codes

When a sensor is experiencing an error condition, the sensor reading on the measurement screen will flash and all relays and analog outputs associated with this sensor will be held. The following conditions will cause the sensor reading to flash: Sensor calibration, Relay timer washing cycle, Loss of communication.

Highlight the Sensor Diag menu and press ENTER. Highlight Errors and press ENTER to determine the cause of the error. Errors are defined in Table 8.

6.2 Warnings

A Sensor warning will leave all menus, relays, and outputs functioning normally, but will cause a warning icon to flash on the right side of the display. Highlight the Sensor Diag menu and press ENTER to determine the cause of the warning.

A warning may be used to trigger a relay and users can set warning levels to define the severity of the warning. Warnings are defined in Table 9.

Table 8 Error Codes

Displayed Error Definition Resolution

RED AMPL LOW1

Sensor cap not installed or not installed correctly.

Light path is blocked inside the sensor cap. Sensor not operating properly.

Remove and reinstall sensor cap. Check for blockage inside the sensor cap.

Ensure red LED is flashing. Contact the Service Department.

BLUE AMPL LOW

Sensor not operating properly.

Contact the Service Department.

Remove and reinstall sensor cap.

Check for blockage inside the sensor cap.

Ensure blue LED is flashing. Contact the Service Department.

1 To determine the amplitude values:a. Start from the main menu, highlight Sensor Setup and press ENTER.b. Highlight the correct sensor and press ENTER.c. Highlight Diag/Test and press ENTER.d. Highlight Ampl Diag and press ENTER. The Amplitude of the red and blue LEDs are shown. The LEDs transmit light onto the inner surface of the sensor cap and the light is reflected back down to the detector inside the sensor. The amplitude increases as more light is reflected. Typical values are from 0.1 to 0.5. The alarm/warning occurs at 0.01/0.03.

36

Troubleshooting

Table 9 Warning Codes

Displayed Warning

Definition Resolution

EE SETUP ERRThe EEPROM was corrupted. Values have been set to factory defaults.


EE RSRVD ERRThe EEPROM was corrupted. Values have been set to factory defaults.


TEMP < 0 C The sensed temperature is below 0 °C (32 °F). Increase process temperature or discontinue use until the process temperature is above 0 °C (32 °F).

TEMP > 50 CThe sensed temperature is above 50°C (120 °F).

Decrease process temperature or discontinue use until the process temperature is below 50 °C (120 °F).

RED AMPL LOWSensor cap not installed or not installed correctly.




RED AMPL HIGHSensor cap not installed or not installed correctly.




BLUE AMPL LOWSensor cap not installed or not installed correctly.




BLUE AMPL HIGHSensor cap not installed or not installed correctly. Sensor not operating properly.

Remove and reinstall sensor cap. Contact the Service Department.

37

Section 7 Replacement Parts and Accessories

Replacement ItemsDescription QTY Cat. No.

Instruction manual, LDO System, English each 57900-18

LDO Probe with one sensor cap and 5 calibration bags each 57900-00

LDO Probe with one sensor cap and 5 calibration bags, Hazardous Locations each 57900-01

Quick reference guide each 57900-44

Sensor cap, replacement each 57911-00

AccessoriesDescription QTY Cat. No.

Air blast cleaning system, 115 V each 57951-00

Air blast cleaning system, 230 V (non-hazardous locations only) each 57952-00

High Output Air Blast Cleaning System, 115 V each 61700-00

High Output Air Blast Cleaning System, 250 V each 61701-00

Calibration bags 5 bags 57966-00

Cable, sensor extension, non-hazardous locations, 7.7 m (25 ft) each 57960-00

Cable, sensor extension, non-hazardous locations, 15 m (50 ft) each 57961-00

Cable, sensor extension, non-hazardous locations, 31 m (100 ft) each 57962-00

Cable, sensor extension, hazardous Locations, 1 m each 61224-01

Cable, sensor extension, hazardous locations, 7.7 m (25 ft) each 57960-01

Cable, sensor extension, hazardous locations, 15 m (50 ft) each 57961-01

Cable, sensor extension, hazardous locations, 31 m (100 ft) each 57962-01

Connector Safety Lock each 61399-00

Load termination box each 58670-00

Mounting hardware kit, pipe each 57944-00

Mounting hardware kit, ball float each 57943-00

Plug, sealing, conduit opening each 58687-00

Strain relief, Hayco each 16664

Winkler titration kit each 1469-00


http://www.hach.com

39

Section 8 How to Order

U.S.A. Customers

By Telephone:6:30 a.m. to 5:00 p.m. MSTMonday through Friday(800) 227-HACH (800-227-4224)

By Fax:(970) 669-2932

By Mail:Hach CompanyP.O. Box 389Loveland, Colorado 80539-0389 U.S.A.Ordering information by e-mail: [email protected]

Information Required

International CustomersHach maintains a worldwide network of dealers and distributors. To locate the representative nearest you, send an e-mail to: [email protected] or contact:

Hach Company World Headquarters; Loveland, Colorado, U.S.A.Telephone: (970) 669-3050; Fax: (970) 669-2932

Technical and Customer Service (U.S.A. only)Hach Technical and Customer Service Department personnel are eager to answer questions about our products and their use. Specialists in analytical methods, they are happy to put their talents to work for you.

Call 1-800-227-4224 or e-mail [email protected]

• Hach account number (if available) • Billing address

• Your name and phone number • Shipping address

• Purchase order number • Catalog number

• Brief description or model number • Quantity

40

Section 9 Repair Service

Authorization must be obtained from Hach Company before sending any items for repair. Please contact the Hach Service Center serving your location.

In the United States:Hach CompanyAmes Service100 Dayton AvenueAmes, Iowa 50010(800) 227-4224 (U.S.A. only)FAX: (515) 232-3835

In Canada:Hach Sales & Service Canada Ltd.1313 Border Street, Unit 34Winnipeg, ManitobaR3H 0X4(800) 665-7635 (Canada only)Telephone: (204) 632-5598FAX: (204) 694-5134E-mail: [email protected]

In Latin America, the Caribbean, the Far East,Indian Subcontinent, Africa, Europe, or the Middle East:Hach Company World Headquarters,P.O. Box 389Loveland, Colorado, 80539-0389 U.S.A.Telephone: (970) 669-3050FAX: (970) 669-2932E-mail: [email protected]

41

Section 10 Limited Warranty

Hach Company warrants its products to the original purchaser against any defects that are due to faulty material or workmanship for a period of one year from date of shipment unless otherwise noted in the product manual.

In the event that a defect is discovered during the warranty period, Hach Company agrees that, at its option, it will repair or replace the defective product or refund the purchase price excluding original shipping and handling charges. Any product repaired or replaced under this warranty will be warranted only for the remainder of the original product warranty period.

This warranty does not apply to consumable products such as chemical reagents; or consumable components of a product, such as, but not limited to, lamps and tubing.

Contact Hach Company or your distributor to initiate warranty support. Products may not be returned without authorization from Hach Company.

LimitationsThis warranty does not cover:

• Damage caused by acts of God, natural disaster, labor unrest, acts of war (declared or undeclared), terrorism, civil strife or acts of any governmental jurisdiction

• Damage caused by misuse, neglect, accident or improper application or installation

• Damage caused by any repair or attempted repair not authorized by Hach Company

• Any product not used in accordance with the instructions furnished by Hach Company

• Freight charges to return merchandise to Hach Company

• Freight charges on expedited or express shipment of warranted parts or product

• Travel fees associated with on-site warranty repair

This warranty contains the sole express warranty made by Hach Company in connection with its products. All implied warranties, including without limitation, the warranties of merchantability and fitness for a particular purpose, are expressly disclaimed.

Some states within the United States do not allow the disclaimer of implied warranties and if this is true in your state the above limitation may not apply to you. This warranty gives you specific rights, and you may also have other rights that vary from state to state.

This warranty constitutes the final, complete, and exclusive statement of warranty terms and no person is authorized to make any other warranties or representations on behalf of Hach Company.

Limitation of RemediesThe remedies of repair, replacement or refund of purchase price as stated above are the exclusive remedies for the breach of this warranty. On the basis of strict liability or under any other legal theory, in no event shall Hach Company be liable for any incidental or consequential damages of any kind for breach of warranty or negligence.


http://www.hach.com

Compliance InformationPage 43

Section 10 Compliance Information

Hach Co. certifies this instrument was tested thoroughly, inspected and found to meet its published specifications when it was shipped from the factory.

The Model sc100 Controller/sc1000 Controller with the LDO Probe has been tested and is certified as indicated to the following instrumentation standards:

Product SafetyThis equipment is suitable for use in both non-hazardous and Class 1, Division 2, Groups A, B, C, D Hazardous Locations with specified sensors when installed per installation control drawing 58600-78.

UL 61010A-1 (ETL Listing # 65454)FM STDs 3600 & 3611 (ETL Listing # 65454)CSA C22.2 No. 1010.1 (ETLc Certification # 65454)CSA STD C22.2 No. 213-M1987 (ETLc Certified by Hach Company to EN 61010-1 Amds. 1&2 (IEC1010-1) per 73/23/EEC, supporting test records by Intertek Testing Services.

ImmunityThis equipment was tested for industrial level EMC per:

EN 61326 (EMC Requirements for Electrical Equipment for Measurement, Control and Laboratory Use) per 89/336/EEC EMC: Supporting test records by Hach Company, certified compliance by Hach Company.

Standards include:IEC 1000-4-2:1995 (EN 61000-4-2:1995) Electrostatic Discharge Immunity (Criteria B)IEC 1000-4-3:1995 (EN 61000-4-3:1996) Radiated RF Electromagnetic Field Immunity (Criteria A)IEC 1000-4-4:1995 (EN 61000-4-4:1995) Electrical Fast Transients/Burst (Criteria B)IEC 1000-4-5:1995 (EN 61000-4-5:1995) Surge (Criteria B)IEC 1000-4-6:1996 (EN 61000-4-6:1996) Conducted Disturbances Induced by RF Fields (Criteria A)IEC 1000-4-11:1994 (EN 61000-4-11:1994) Voltage Dip/Short Interruptions (Criteria B)

Additional Immunity Standard/s include:ENV 50204:1996 Radiated Electromagnetic Field from Digital Telephones (Criteria A)

EmissionsThis equipment was tested for Radio Frequency Emissions as follows:

Per 89/336/EEC EMC: EN 61326:1998 (Electrical Equipment for measurement, control and laboratory use—EMC requirements) Class “A” emission limits. Supporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test Center (A2LA # 0905-01) and certified compliance by Hach Company.

Standards include:EN 61000-3-2 Harmonic Disturbances Caused by Electrical EquipmentEN 61000-3-3 Voltage Fluctuation (Flicker) Disturbances Caused by Electrical Equipment

Additional Emissions Standard/s include:EN 55011 (CISPR 11), Class “A” emission limits

Compliance InformationPage 44

Compliance Information

Canadian Interference-causing Equipment Regulation, IECS-003, Class ASupporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test Center (A2LA # 0905-01) and certified compliance by Hach Company.

This Class A digital apparatus meets all requirements of the Canadian Interference- Causing Equipment Regulations.Cet appareil numèrique de la classe A respecte toutes les exigences du Rëglement sur le matÈriel brouilleur du Canada.

FCC PART 15, Class “A” LimitsSupporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test Center (A2LA # 0905-01) and certified compliance by Hach Company.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense. The following techniques of reducing the interference problems are applied easily.

1. Disconnect the controller from its power source to verify that it is or is not the source of the interference.

2. If the controller is connected into the same outlet as the device with which it is interfering, try another outlet.

3. Move the controller away from the device receiving the interference.

4. Reposition the receiving antenna for the device receiving the interference.

5. Try combinations of the above.

45

Appendix A Modbus Register Information

Table 10 Sensor Modbus Registers

Group Name Tag Name Register # Data Type Length R/W Units (U) Range

MeasurementsOxygen Concentration

40001 Float 2 R ppm 0..20

MeasurementsPercent Saturation

40003 Float 2 R Percent 0..300

Measurements Temperature 40005 Float 2 RCelsius/

Fahrenheit-5.1..60 / 0..150

DiagnosticsTotal Phase Shift

40007 Float 2 R degrees -360..360

DiagnosticsBlue Phase Shift

40009 Float 2 R degrees -360..360

DiagnosticsRed Phase Shift

40011 Float 2 R degrees -360..360

DiagnosticsBlue Amplitude

40013 Float 2 R none 0..1

Diagnostics Red Amplitude 40015 Float 2 R none 0..1

Diagnostics Version 40017 Float 2 R none 0..99.0

SettingsAltitude/Pressure

40041 Float 2 R/Wsee Alt Press

Units0.15000 ft, 0-5000 m,

0..1000 torr, 0..1000 mmHg

Settings Salinity 40043 Float 2 R/W none 0..500

Calibration Offset Corr 40045 Float 2 R/W see Conc Units -5.00..5.00

Calibration Slope Corr 40047 Float 2 R/W none 0.5..1.5

Calibration Calib Value 40037 Float 2 R/W see Conc Units 0..20

Settings Conc Units 40091 Integer 1 R/W enumeratedppm=2, mg/l=0, Percent =

10

Settings Alt Press Units 40092 Integer 1 R/W enumeratedfeet=43, meter=13, torr=47,

mmHg=45

Settings Temp Units 40093 Integer 1 R/W enumerated Celsius=25, Fahrenheit=26

Settings Sensor Code 40094 String 5 R/W none Calibration Code

Settings Sensor Name 40099 String 6 R/W none User Name

Settings Signal Avg 40105 Integer 1 R/W seconds 0..1000

Diagnostics Serial Number 40114 String 6 R none Production Code


http://www.hach.com

49

Index

AApplications ................................................................ 8

BButtons

List box .............................................................. 27Toolbar .............................................................. 25

CCalibration .......................................................... 19, 31

Air ................................................................ 21, 34Comparison ....................................................... 22

CleaningSensor ............................................................... 35

Compliance Information ........................................... 45Configuring

System ......................................................... 17, 29

DDigital Output

Network Card Position ....................................... 13Display ......................................................... 16, 17, 29

EEntries

Incorrect ............................................................. 26Error Codes .............................................................. 37

KKey

Functions ........................................................... 15Keypad ..................................................................... 15

LList box ..................................................................... 27

MMaintenance Schedule ............................................ 35Menu command

Marking ........................................................ 25, 26Menu windows ......................................................... 25Mounting

Probe ................................................................. 14

NNormal operation ..................................................... 25

PParts

Replacement ..................................................... 39

RResponse Time .......................................................... 5

SSafety Information ...................................................... 7Sensor

cap ....................................................................... 8Sensor Cable

Connecting .......................................................... 9Wiring .................................................................. 9

Specifications ............................................................. 5

TTheory of Operation ................................................... 8Toolbar ..................................................................... 25

WWarnings .................................................................. 37Warranty .................................................................. 43


http://www.hach.com

hach sc100 controller

Documents