od 7685.110 eng - cole-parmer

U N I E N I S O 9 0 0 1 : 2 0 0 0

C E R T . N . 9 1 1 5 B C E L

B&C Electronics Srl – Via per Villanova 3 – 20040 Carnate (MB) – Italy P.IVA 00729030965 Tel +39 039 631 721 – Fax +39 039 607 6099 [email protected] - www.bc-electronics.it

INSTRUCTION MANUAL

OD 7685.110

OPTICAL D.OXYGEN CONTROLLER D.O. scales: 0/400 - 0/200,0 %air 0/400 - 0/200,0 mmHg 0/40 - 0/20,00 ppm 0/40 - 0/20,00 mg/l Temperature: -2/+52 °C -28,4/125,6 °F Option

S/N

REP N°

Power supply: 110/220 Vac

Software: R2.0x Cod. 280067622 - Rev. A

B&C Electronics OD 7685.110

Instruction manual - Rev. A - 07/09 - 1 -

Index

1 DESCRIPTION 3 1.1 Measuring system ...................................................................................................................3 1.2 Optical D.O. measuring principle...........................................................................................4 1.3 Sensors and accessories ..........................................................................................................4

2 SPECIFICATIONS 5 2.1 Functional specifications ........................................................................................................5 2.2 Technical specifications..........................................................................................................7 2.3 Physical description..............................................................................................................11

3 OPERATING THE SYSTEM 12 3.1 Keys function........................................................................................................................13 3.2 Readout sequences................................................................................................................14 3.3 Calibration sequences ...........................................................................................................16 3.3.1 Zero and sensitivity calibration ......................................................................................16 3.3.2 Secondary parameters calibration...................................................................................20 3.3.3 Temperature calibration..................................................................................................22 3.3.4 Set point A and B............................................................................................................23 3.3.5 On/Off parameters ..........................................................................................................24 3.3.6 Auto clean parameters ....................................................................................................25 3.3.7 Visualizations .................................................................................................................27 3.3.8 Configuration..................................................................................................................28 3.3.9 Keyboard locked/unlocked .............................................................................................28 3.3.10 LCD contrast...................................................................................................................29 3.3.11 Main display ...................................................................................................................29 3.3.12 Temperature measuring unit ...........................................................................................29 3.3.13 Access number................................................................................................................29 3.3.14 Measuring unit ................................................................................................................30 3.3.15 Software filter LARGE...................................................................................................30 3.3.16 Software filter SMALL...................................................................................................30 3.3.17 Input related to the analog output Nr 1...........................................................................30 3.3.18 Analog output Nr1 parameters........................................................................................30 3.3.19 Input related to the analog outpt Nr 2.............................................................................30 3.3.20 Analog output Nr 2 parameters.......................................................................................31 3.3.21 Set-point A function .......................................................................................................31 3.3.22 Set-point B function........................................................................................................31 3.3.23 Cleaning function ...........................................................................................................31 3.3.24 Number of clearing cycle................................................................................................31 3.3.25 Compressor charge time (relay D off) ............................................................................31 3.3.26 Compressor discharge time (relay D on) ........................................................................32 3.3.27 Hold ................................................................................................................................32 3.3.28 Access number................................................................................................................32

4 INSTALLATION 33 4.1 Physical installation..............................................................................................................33 4.2 Electrical installation ............................................................................................................33 4.2.1 Connecting the optical DO probe with the built in temperature sensor .........................33 4.2.2 Connecting the relays .....................................................................................................34



4.2.3 Connecting the analog output .........................................................................................34 4.2.4 Checking.........................................................................................................................34

5 PREVENTIVE MAINTENANCE 35

WARRANTY CERTIFICATE ..............................................................................................................38 REPAIR .................................................................................................................................................38 TECHNICAL SUPPORT ......................................................................................................................39



1 DESCRIPTION

1.1 MEASURING SYSTEM

The Dissolved Oxygen monitoring system consists of two parts: - the measuring/regulating instrument which is discussed in this instruction manual - the optical dissolved oxygen probe The system could be implemented with additional devices for field application: recorder, remote display, PID regulators, sensor cleaner. Instrument This instrument carries out the following functions: 1) dissolved oxygen measuring when connected to the sensor 2) manual/automatic d.oxygen regulation, if suitable devices are connected to the output relays 3) temperature measuring, if an RTD Pt1000 is connected 4) manual or automatic compensation of temperature, pressure, salinity and relative humidity effects 6) D.O. and temperature acquisition, when connected to a recorder or a data logger 7) sending data via a serial interface, if the 091.701 option "RS232" is installed 8) external device activation for the sensor cleaning Sensor The B&C Electronics OD 8382 optical DO sensor or special galvanic sensor are suitable for this instrument. The sensor installation should allow a continuous contact with the sample, in a position with sufficient stirring and exchange of sample. In some applications the use of sensor cleaning devices is suggested.



1.2 OPTICAL D.O. MEASURING PRINCIPLE

A light beam of a specific wavelength is sent to a special fluorescent layer in contact with the sample. The absorbed light energy is partially released as a light pulse with an higher wavelength. This phenomena is called fluorescence. If oxygen molecules are in contact with the sensing layer, the fluorescing is reduced (quenching). By measuring the amount of quenching it is possible to determine the oxygen concentration. The advantages of this measuring method are the absence of electrolyte and membrane, the possibility to measure the oxygen concentration in water or in air, a not sensitivity to the flow, and a good sensitivity in a low oxygen concentration.

1.3 SENSORS AND ACCESSORIES

To be ordered separately: OD 8382 Auto clean optical DO probe, 10 m cable OD 8112 Pressure air cleaner+controller BC 931.2 Enclosure for one unit. IP65 BC 931.3 Enclosure for two units. IP65



2 SPECIFICATIONS

2.1 FUNCTIONAL SPECIFICATIONS

Input The instrument accepts input from the OD 8382 optical DO probe or the AT amplified galvanic cell. A second input is provided for 2 or 3 wires Pt1000 RTD temperature sensors. Temperature compensation The unit is supplied with manual or automatic temperature compensation and temperature information may be displayed on the LCD. The instrument detects of the absence or malfunctioning of the temperature sensor and automatically switches to manual compensation. Secondary parameters The unit is supplied with pressure, salinity and relative humidity manual compensation. Measuring ranges The input range may be selected in PPM, mg/l, % air saturation and mmHg partial pressure. The temperature range is selectable in °C or in °F. Dual Analog output Either a 0/20 mA or 4/20 mA isolated output may be selected, for use as an interface with computers or data loggers. A special routine allows selection of the analog output range. The output current may be set anywhere from 0 to full scale. Control relays The D.O. monitor is equipped with two SPDT control relays. Each control relay may be programmed for set-point, high/low, hysteresis or delay time actuation. When the unit is configured as main display DO +SET, the full display indicates the current settings and current status of each relay. Cleaning function The instrument features two relays (C-D) for autocleaning cycle. The cleaning function may be activated automatically or manually. The user may select: - cleaning time - holding time - cycle repetition time



During the CLEAN and HOLD time: - flashing messages will appear - analog outputs are maintained in hold - relays A and B are deactivated Calibration mode The instrument may be automatically calibrated in air. Manual calibration may also be performed. Software filter The unit is provided with a dual programmable software filter, to be inserted when the readout is not stable. Configuration The electronics for the D.O. monitor system are designed to be as flexible as possible. A number of programming functions are provided in the configuration menu and are protected by an access number, which must be entered to allow changes in this setting. The main display can be configured in order to show the D.O. and temperature values or the D.O. value and set point status. Keyboard lock The keys on the front panel of the monitor can be used for both changing the display and for calibrations and set-point adjustments. When the monitor is shipped, all functions are accessible. However, the adjustment and calibration functions may be locked in order to prevent unauthorized adjustments to the instrument. Options 091.404 24 Vac power supply 091.4143 9/36 Vdc power supply 091.701 RS232 isolated output The output sends the data (D.O. value, °C) to the serial port



2.2 TECHNICAL SPECIFICATIONS

The Default values are correspondent to the factory calibration values. Parameters marked by "*" can be modified in the Configuration procedures. 1) DO SENSOR Default * Main display: DO+SET/DO+TEMP

DO+SET

Input: from optical DO sensor or from amplified ATI galvanic cell

Input signal at 20 °C (68 °F): 83.2/1040 mV Sensor sensitivity: 20%/250 %

416 mV

Temperature compensation: internal table Reference temperature: 20°C (68 °F) * Scales: % air saturation: 0/400 - 0/200.0 % air 0/200.0 % air sat ppm: 0/40.0 - 0/20.00 ppm 0/20.00 ppm mg/l: 0/40.0 - 0/20.00 mg/l 0/20.00 mg/l Partial O2 pressure: 0/400 - 0/200.0 mmHg 0/200.0 mmHg Zero adjustment: +/- 40 mV Sensitivity adjustment: 200/250% 100 % Display resolution at 20°C: 1/1000 Auto calibration (function of temp.-press.-UR) Manual calibration (through up/down keys) Software filter 90% RT: * Large signal variation: 0.5/50.0 seconds 2.0 s * Small signal variation: 0.5/50.0 seconds 10.0 s

2) SECONDARY PARAMETERS Default Pressure: 500/800 mmHg 760 mmHg Salinity (chlorides): 0/60000 ppm 0 ppm Relative Humidity: 0/100 % 50 %

3) TEMPERATURE Default Measuring unit: °C/°F Input: RTD Pt1000

°C

Connection: 2/3 wires Measuring and compensation range: -2/+52 °C (24,8/125,5 °F) Resolution: ± 0.1 °C (0,1 °F) Zero: ± 2°C (± 3,6 °F) 0°C Manual temperature: 0/50°C (32/122 °F) 20°C



4) SET-POINT (Relays A-B) Default * Action: ON-OFF

Set-point value: 0/20.00 PPM 0 PPM Hysteresis: 0/2.00 PPM Activation delay: 0/99.9 seconds

0 PPM 0.0 s

* Function: HI/LO (Max/Min) LO

5) CLEANING FUNCTION (Relays C-D) Default * Action: Disable/Manual Clean/Auto+Manual Clean

Disable

Auto Clean: Cycle repetition: 0.1/24.0 hours 24.0 h * Number of cycle (N):1/10 4 * Charging time: 0.5/60.0 seconds 15.0 s * Discharging time: 0.0-10.0 seconds 3.0 s Relay C (compressor) ON for: (Charge time+Discharge time)*(N-1)+(Charge time-2") Relay D (valve) OFF for: charge time Relay D (valve) ON for: discharge time

* Hold time: 0.1/20.0 minutes 3.0 min. Relays contacts: SPST (NO) 220 V 5 A resistive load

6) ANALOG OUTPUT Nr. 1 Default * Input channel connected to out 1: O2/°C

O2

* Current range: 0-20/4-20 mA 4/20 mA * Point 1 for output 1:

Range: 0.0/40.0 PPM 0.0 PPM Range: 0.00/20.00 PPM 0.00 PPM Temperature: 0.0°C/50.0°C (32.0/122.0 °F) 0.0 °C * Point 2 for output 1: Range: 0.0/40.0 PPM 40.0 PPM Range: 0.00/20.00 PPM 20.00 PPM Temperature: 0.0°C/50.0°C (32.0/122.0 °F) 50.0 °C Response time: 10 seconds for 98% Isolation: 250 Vac Rmax: 600 ohm



7) ANALOG OUTPUT Nr. 2 Default * Input channel connected to out 2: O2/°C

O2

* Current range: 0-20/4-20 mA 4/20 mA * Point 1 for output 2:

Range: 0.0/40.0 PPM 0.0 PPM Range: 0.00/20.00 PPM 0.00 PPM Temperature: 0.0°C/50.0°C (32.0/122.0 °F) 0.0 °C * Point 2 for output 2: Range: 0.0/40.0 PPM 40.0 PPM Range: 0.00/20.00 PPM 20.00 PPM Temperature: 0.0°C/50.0°C (32.0/122.0 °F) 50.0 °C Response time: 10 seconds for 98% Isolation: 250 Vac Rmax: 600 ohm

8) SERIAL COMMUNICATION (option 091.701) Default Baud Rate: 4800 bit/s Nr. of bit: 8 bit Nr. of stop bit: 1 bit Parity: None Isolated from measuring circuits Example of data: ±20.00PPM ±50.0°C Z:-0.500mV S:100.0% Data sent every: 0.4 seconds

9) 24 VAC POWER SUPPLY (option 091.404) Default Voltage: 24 Vac +/-10 % 50/60 Hz Power: 5 VA max

10) VDC POWER SUPPLY (option 091.4143) Default Voltage: 9 to 36 Vdc Power: 4 W max. Absorption max.: 320 mA at 12 Vdc 160 mA at 24 Vdc Isolation I/O: 1500 Vdc



11) PARAMETERS ON CONFIG BLOCK (See for *) Default Free calibration (access code not required):

Keyboard Locked/Unlocked. Unlocked LCD contrast (0/7). 4 Main display: DO+SET/DO+TEMP DO+SET Temperature unit: °C/°F °C Under access code number (0): Measuring unit (mmHg,%air,ppm,mg/l). ppm Range of measure (40.0/20.00) 20.00 Autorange on/off off Digital filter response time (large): 0.5/50.0" 2.0" Digital filter response time (small): 0.5/50.0" 10.0" Input connected to out 1 (O2/°C/°F) O2 Range of analog output 1 (0/20 4/20mA) 4/20 Point 1 for output 1 0.00 Point 2 for output 1 20.00 Input connected to out 2 (O2/°C/°F) °C (°F) Range of analog output 2 (0/20 4/20mA) 4/20 Point 1 for output 2 0.0 Point 2 for output 2 50.0 Function of relay A (HI/LO). LO Function of relay B (HI/LO). LO Cleaning function (Auto/Manual/Disabled) Disabled Number of cycle for cleaning function: 1/10 4 Charging time: 0.5/60.0" 20.0" Discharging time: 0.0/10.0" 3.0" Holding time before restarting of normal operation: 0/60.0' 3.0' Access Number: 0/999 0

12) GENERAL SPECIFICATIONS Default Acquisition time: 0.4 seconds approx. Alphanumeric display: 1 line x 16 characters Operating temperature: 0/50 °C Humidity: 95% without condensate Power supply: 110/220 Vac +/- 10% 50/60 Hz Isolation: 4000 V between primary and secondary (IEC 348) Power: 5 VA max. Terminal block: extractable Weight: 850 g



2.3 PHYSICAL DESCRIPTION

The controller enclosure is designed for surface or panel mounting. It consists of an anodized aluminum case built according to the standard DIN 43700, with an aluminum panel coated with scratch-proof and non-corrosive polycarbonate membrane. A transparent waterproof front door SZ7601 can be added to the housing, in order to protect the unit from excessive moisture or corrosive fumes. Signal and power cable connections are made by using two extractable terminal blocks placed in the back of the instrument. This makes wiring, installation and general maintenance of the probes and other devices easier. The package is supplied complete with fixing clamps for panel-mounting.



electronics

3 OPERATING THE SYSTEM

1. LCD display

2. Mode-Display key

3. Calibration key

4. Increase key

5. Decrease key

6. Enter key

Fig. 1



3.1 KEYS FUNCTION

KEY FUNCTION

ù Key “Mode Disp”

- it allows the operator to go to the next display - it allows to go back to the main display. The eventual new parameter values will not be memorized

§ Key “Cal”

- it allows the access of calibration sequences

ò Key “Up”

- it allows to increase the displayed parameters - it allows to choose between different functions

ç Key “Down”

- it allows to decrease the displayed parameters - it allows to choose between different functions

£ Key “Ent”

- it allows to enter the selected data and to return to the main Display D0



3.2 READOUT SEQUENCES

When the power is turned on, the display will come up with a program and version number, which will remain on the display for a few seconds.

The display will then change to a display of oxygen concentration and an indication of the status of control relays. This is the main operating display, and should look like the display below: ·D0· or ·D0· or ·D0·

20.00PPM: actual dissolved oxygen value AL: set-point A state and function LO ì : deactivated relay è : the process has reached the set-point and the relay activation is delayed à : activated relay BH: set-point B state and function HI 20.0°C: actual temperature value in °C 68°F: actual temperature value in °F M: manual temperature compensation MESSAGE MEANINGS " >>>>> " over range " <<<<< " under range

"CLEAN CYCLE" the instrument is in AUTO CLEAN function (relay D on)

"HOLD CYCLE" the instrument is in Hold

20.00ppmM ìALàBH

20.00ppm 20.0°CM

20.00ppm 68°FM

OD7685.110 R2.0x



OD7685.110 R2.0x

Press ù to visualize the following display:

D0 Dissolved oxygen values in %air (ppm - mg/l -

mmHg), set point state and function

D0 bis Dissolved oxygen and temperature values

D1 Barometric pressure and salinity compensation values

D2 Sample temperature display

D3 Relay A set point and function

D4 Relay B set point and function

D5 Sensor cleaner function

D6 Analog Nr 1 output indication

D7 Analog Nr 2 output indication

D8 Access to setup routines

D9 P/N and release number

SB:xxx %air* HI

Configuration

TEMP.: xx.x°CM

xxx.x%air xx.x°C

SA:xxx %air* LO

CLEANING OFF

xxx%airM ìAL àBH

p:xxx sal: xxxxx

02 xx.xmA/xxx %a

01 xx.xmA/xxx %a



3.3 CALIBRATION SEQUENCES

The following procedures will be activable whenever the instrument is not in the keyboard lock condition. To unlock the keyboard follows the procedures mentioned in chapter "Configuration". The following procedures allows the sensors calibration, the set-point and autoclean parameters programming. 3.3.1 Zero and sensitivity calibration The instrument is delivered with factory calibration that can be restored by pressing the three keys

ò ç £ as described in the following procedures. Check the correct setting of the secondary parameters described in D1 display and prepare a zero dissolved oxygen solution to perform the zero calibration. The errors messages inform the operator about a possible sensor malfunctioning. If the zero offset is > 40 mV it is necessary to replace the sensor. If the sensitivity value is > 250% o < 20% it is necessary to make the sensor maintenance. ·D0· or alternative main display

1. § press the key to activate the zero/sens calibration Zero calibration This calibration is necessary during: - first installation of the optical DO system - first installation of the ATI galvanic cell or after the membrane/electrolyte replacement The instrument visualizes the zero value first in order to go ahead with the zero calibration or to go to the next sensitivity calibration. Immerse the probe in a fresh 2 %, wait for the stabilization and perform the zero calibration as described below. x.x mV: actual zero value

xxx.x%air 20.0°C

Zero: x.x mV



ù to exit and to turn to ·D1·

£ to confirm and to go to the sensitivity calibration

2. § to activate the zero calibration sequence x.x: zero value from the sensor


ò +ç +£ to turn to the factory calibration

3. £ to end the zero calibration and to go to the sensitivity calibration MESSAGES MEANING The calibration has been accepted Zero> 40 mV

The above messages last for 5 minutes.

£ press the key to interrupt the messages and read the new message The calibration has not been accepted. The unit turn to ·D0·. Sensitivity calibration The monitor can be calibrated in one of two way, automatic air calibration, or manual calibration. Automatic air calibration lets the electronics adjust the calibration based on the temperature measured by the RTD in the sensor and programmed values for altitude, salinity, and relative humidity. Manual calibration allows the value on the display to be adjusted to a value provided from a secondary measuring device, usually a portable D.O. unit. The choice of the method depends of the operator preference.

CAL Zero: x.x

UPDATE

Z > 40 mV

NO UPDATE



The air calibration is simple and reliable because it uses ambient air as a reference standard, which is generally stable. However, it requires that the sensor be removed from the tank and allowed to stabilize at air temperature, which can take 20 minutes. The manual method allows the sensor to be left in the tank and a portable sensor dropped near it to get a reference measurement. The monitor can then set to the value measured by the portable. Note 1: In case of needing, the user can turn to the factory calibration by pressing simultaneously the keys

ò ç £ The procedure starts after the zero calibration from the following display: xxx.x: sensitivity value


£ to confirm the actual value and to turn to ·D0·

1. § to access the calibration procedure (MANUAL) AUTO (MANUAL): calibration mode


2. ò ç to choose the calibration mode

3. £ - to confirm the calibration mode - to go to the automatic (procedure A) or manual (procedure B) mode.

(procedure A) Automatic sensitivity calibration - verify the programmed values of barometric pressure and relative humidity; - turn the salinity value to zero before calibrating (and set the value again after the calibration); - remove the sensor form the sample; - verify that the temperature readout is correct.

SENS: xxx.x %

CAL O2:AUTO/air



4A. £ press the key to access the procedure xxx.x: dissolved oxygen value A: automatic calibration procedure


ò +ç +£ to turn to factory calibration

5A. £ to confirm the sensitivity calibration and to turn to ·D0· (procedure B) Manual sensitivity calibration Manual calibration allows the operator to simply set the display to a known D.O. concentration measured by another method. The sensor must be left in the tank and the D.O. be measured accurately with either a chimical test or a portable D.O. meter. The D.O. concentration of the sample must be constant at least for the response time of the sensor. The procedure starts from the following display::

xxx.x: D.O. measuring value M: manual calibration



4B. ò ç to adjust the D.O. measuring value

5B. £ - to confirm the sensitivity calibration and to turn to ·D0· MESSAGES FUNCTION

The calibration is accepted. The unit turns to ·D1· after 1” UPDATE

CAL O2: xxx.x A

CAL O2: xxx.x M



Error messages sensitivity > 250.0 % sensitivity < 20.0 % The above messages last for 5 minutes.

£ press the key to stop the message The calibration is not accepted. The unit turns to ·D1·. 3.3.2 Secondary parameters calibration This procedure allows to set the: - barometric pressure; - salinity - relative humidity. Those values will be used by the unit to access the compensation table.

1. ù press one time the key to go to ·D1· xxx: barometric pressure value xxxxx: salinity value

2. § to access the calibration procedure Barometric pressure calibration xxx mmHg: barometric pressure value

NO UPDATE

S < 20.0 %

S > 250.0 %

p:xxx sal: xxxxx

CAL p: xxx mmHg




3. ò ç to adjust the barometric pressure value

4. £ to confirm the value and to go to the salinity calibration MESSAGES FUNCTION The new value is memorized Salinity calibration xxxxxppm: salinity value


5. ò ç to adjust the salinity value

6. £ to confirm the value and to go to the relative humidity calibration MESSAGES FUNCTION The new value is memorized Relative humidity calibration xxx%: relative humidity value


UPDATE

CAL sal:xxxxxppm

UPDATE

CAL RH: xxx%



7. ò ç to adjust the relative humidity value

8. £ to confirm and to turn to ·D1· MESSAGES FUNCTION The new value is memorized 3.3.3 Temperature calibration The temperature measurement function is factory calibrated and normally will not require field adjustment. However the temperature display can be calibrated using a single point calibration. To calibrate, simply immerse the sensor in a beaker and allow the sensor to stabilize at the water temperature. Use a precision thermometer accurate to 0.1 °C to measure the water temperature, and compare to the meter display for the calibration. In case of needing it is possible to turn to the factory calibration by pressing simultaneously the keys

ò ç £ as described in this section of the manual.

1. ù press two times from D0 to reach the following display ·D2· sample temperature value in °C (°F) M: manual value

2. § to access the temperature or the manual temperature adjustment (°F) >>>>>>: over range value



3. ò ç to adjust the temperature value of the sample

Temp: 20.0°CM

CAL T 20.0°C

UPDATE



4. £ to confirm and to go to the manual temperature adjustment (68.0°F) 22.0°C (68.0°F): manual temperature value


5. ò ç to adjust the manual temperature value

6. £ to confirm the manual temperature value and to turn to ·D1· MESSAGES FUNCTION The calibration is accepted. Messaggi di errore

zero > 2.00 °C (3.6 °F) display is visualized for 5 minutes

£ press the key to interrupt the message The calibration is not accepted. The unit turn to ·D1· 3.3.4 Set point A and B The set-point B procedure is same as set-point A procedure, in this way the user will follow the next description just considering (SB) instead of (SA) and ·D4· instead of ·D3· . The procedures allow to: - adjust the set-point values; - set the hysteresis value; - set the delay value.

NO UPDATE

z > 2.00°C

CAL T.M: 22,0°C

UPDATE



1. ù press three times the key from D0 to reach ·D3· (set A) press four times the key from D0 to reach ·D4· (set B) ·D3· (·D4·) (SB) SA: set-point A parameters (SB: set-point B parameters) xxx %air: set point value à : set-point status (activated relay) LO: function minimum (HI))

2. § to access the set-point, hysteresis, delay calibration Set point calibration SA: set-point A parameters xxx.x: set-point value

ù to exit and to turn to ·D3/D4·

3. ò ç to insert the set-point value

4. £ to confirm and to go to the next set point parameter calibration. 3.3.5 On/Off parameters xx.x: actual hysteresis value


1. ò ç to insert the hysteresis value

2. £ to confirm and to go to the delay value insertion

SA:xxx %air àLO

CAL SA S:xxx.x

CAL SA I: xx.x



5.0s: actual delay value


3. ò ç to insert the delay value

4. £ to confirm the delay value and to turn to ·D3/D4· MESSAGES FUNCTION The calibration is accepted. 3.3.6 Auto clean parameters

1. ù press five times the key from D0 to reach ·D5· ·D5· (MANUAL CLEAN/AUTO CLEAN)

2. § to access the auto clean parameter calibration Manual function (MANUAL CLEAN) (START) WAITING: the unit is waiting for the clearing cycle start


3A. ò ç to select START or WAITING

4A. £ to confirm the selected parameter

CAL SA D: 5.0s

UPDATE

CLEANING OFF

CLEAN C. :WAITING



If START has been selected, the unit turn to ·D0· and a cleaning cycle will start. If WAITING has been selected, the unit will turn to ·D5·

Automatic function (AUTO CLEAN) xx.xh: waiting time (hours) before next cycle


ò + ç + £ to turn to the factory calibration

3B. £ press the key to visualize the waiting time before the next cleaning cycle (START) WAITING: the unit is waiting for the new cleaning cycle


4B. ò ç to select START o WAITING

5B. £ to confirm the selected parameter

If START has been selected, the unit turn to ·D0· and a cleaning cycle will start. (the automatic cycle parameter will not be changed). If WAITING has been selected, the unit will go to the repetition time calibration.

xx.xh: repetition time (hours) of the cleaning cycle


6B. ò ç to set the repetition time

CLEAN C. :WAITING

REPETITION:xx.xh

NEXT CYCLE:xx.xh



7B. £ to confirm the repetition time and to turn to ·D5· MESSAGES FUNCTION The calibration is accepted. Note: The unit will turn to the previous display if any key has not been used during the calibration procedure within 5 minutes. The new data will be not memorized. 3.3.7 Visualizations The D6 and D7 display allow the analog output visualization. The D8 display allows to visualize the configuration parameters and to change the configuration under the password protection. The D9 display allows the visualization of the P/N and the installed software release.

ù press six times the key from D0 to reach ·D6· ·D6· 01: analog output Nr 1 xx.xmA : actual output current value xxx %a (100°C): actual D.O. measuring value

ù press the key to go to ·D7· ·D7· 02: analog output Nr 2 xx.xmA : actual output current value xxx %a (100°C): actual temperature measuring value

1. ù press eight times the key from to reach ·D8· ·D8· Configuration dispaly

01 xx.xmA/xxx %a

02 xx.xmA/xxx %a

Configuration

UPDATE



§ to access the keyboard locked/unlocked selection.

ù press nine times the key from D0 to reach ·D9· ·D9· P/N and software release

ù press the key to turn to ·D0· 3.3.8 Configuration

1. ù press eight times the key from D0 to reach the display ·D8· ·D8·

2. § to access the configuration procedures The following keys will be active in the configuration menu:


3. ò ç to change or to select the parameters

4. £ to confirm the new selection and go to the next parameter configuration. The unit will display the following message:

3.3.9 Keyboard locked/unlocked UNLOCKED: keyboard is locked LOCKED: keyboard in unlocked

OD7685.110 R2.0x

Configuration

KB UNLOCKED

UPDATE



3.3.10 LCD contrast The user can select 7 level of LCD contrast. 3.3.11 Main display The user can select one of the following main display. 3.3.12 Temperature measuring unit The user can select the unit in °C or °F 3.3.13 Access number Access nbr request Note: If the user will use a wrong access nbr, it will be possible to visualize the configuration parametes but not make changes.The following message will appear for few seconds. Inhibition of the calibration

LCD CONTRAST: 4

Access Nr: 0

Cal Inhibition

Disp.: DO + SET

Disp: DO + TEMP

Temp. Unit: °C

Temp. Unit: °F



3.3.14 Measuring unit %air: scale in % air ppm: scale in ppm mg/l: scale in mg/l mmHg: scale in mm mercurium 3.3.15 Software filter LARGE

Large filter response time

3.3.16 Software filter SMALL

Small filter response time

3.3.17 Input related to the analog output Nr 1

%air, ppm, mg/l, mmHg o °C

3.3.18 Analog output Nr1 parameters

0/20mA (4/20mA)

P1: begin of the scale xxx.x%air: input value corresponding to 0 or 4 mA

P2: end of the scale

xxx.x%air. : input value corresponding to 20 mA

Note: if the P2 value is lower than P1 value, the output will be reverse. 3.3.19 Input related to the analog outpt Nr 2

%air, ppm, mg/l, mmHg o °C

LARGE S RT: 2.0s

SMALL S RT:10.0s

CAL OUT1: %air

CAL OUT1: 0/20mA

CAL P1: xxx.x%air

CAL P2: xxx.x%air

CAL OUT2: %air

O2 Scale: %air



3.3.20 Analog output Nr 2 parameters 0/20mA (4/20mA)

P1: begin of the scale xxx.x%air: input value corresponding to 0 or 4 mA

P2: end of the scale xxx.x%air: input value corresponding to 20 mA Note: if the P2 value is lower than P1 value, the output will be reverse. 3.3.21 Set-point A function

LO: Minimum HI: Maximum

3.3.22 Set-point B function

LO: Minimum HI: Massimo

3.3.23 Cleaning function

DISABLED: function disabled MANUAL: manual function AUTO: automatic function 3.3.24 Number of clearing cycle

Actual cycle numbers

3.3.25 Compressor charge time (relay D off)

Time in seconds

CAL OUT2: 0/20mA

SET A F.: LO

SET B F.: LO

CAL P1: xxx.x%air

CAL P2: xxx.x%air

CAL CF:DISABLED

N. CICLI: 4

CHARGE T.: 2.00”



3.3.26 Compressor discharge time (relay D on)

Time in seconds

3.3.27 Hold Time in minutes

3.3.28 Access number

NO : password changing not requested YES: password changing requested

Insert the new password Confirm the new password If the new password is not confirmed the uni twill send the message 'NO UPDATE'.

£ press the key few times to verify the configuration parameters.

Change Nr: NO

New Nr: 0

Confirm Nr: 0

DISCHARGE T.:3.0”

HOLDING T: 3.0’



4 INSTALLATION

4.1 PHYSICAL INSTALLATION

The unit may be installed close to the points being monitored in a suitable switch board or in a water-tight enclosure for field applications. The enclosure is designed for panel-mounting. It should be mounted on a rigid surface, in a position protected from the possibility of damage or excessive moisture or corrosive fumes. For the Auto-clean application the unit is installed in the enclosure containing the autoclean system.

4.2 ELECTRICAL INSTALLATION

All connections within the controller are made on detachable terminal strips located on the rear side. (fig. 2) All power and output-recorder connections are made at the 13 pin terminal strip, while input signal connections are made at the 12 pin terminal strip. The electrical installation consists of: Connecting the power - connect ground to terminal 4 - connect ac power to 1 - 2 terminals if power voltage is 110 V - connect ac power to 1 - 3 terminals if power voltage is 220 V if 091.404 option is installed, connect 24 Vac to 1-3 terminals Warnings: - power the device by means of an isolation transformer - avoid mains-voltage from an auto-transformer - avoid mains voltage from a branch point with heavy inductive loads - separate power supply wires from signal ones - check the mains voltage value 4.2.1 Connecting the optical DO probe with the built in temperature sensor

- connect the white wire to the terminal 17 marked V- - connect the green wire to the terminal 18 marked V+ - connect the red wire to the terminal 22 marked IN+ - connect the black wire to the terminal 21 marked IN- - connect the brown wire to the terminal 23 marked t1 - install a jumper between terminals 24 marked t2 and 25 marked t3 The connection of the probe is a critical part of the installation: - avoid cable interruptions - keep the cable of the probe far from power cables



4.2.2 Connecting the relays

The output connections referred to set-point 1 and set-point 2 are made at terminal strip and they consist of two independent SPDT relays corresponding to Regulator A and Regulator B. The output connections referred to Auto-Clean consist of two SPST relays corresponding to autoclean C/D. Control relay "A" terminal 6 marked C : common contact terminal 5 marked NO : normal open contact terminal 7 marked NC : normal closed contact Control relay "B" terminal 9 marked C : common contact terminal 8 marked NO : normal open contact terminal 10 marked NC : normal closed contact Relay "C" (Autoclean - Compressor) terminal 12 marked C : common contact terminal 11 marked NO : normal open contact Relay "D" (Autoclean - Solenoid) terminal 12 marked C : common contact terminal 13 marked NO : normal open contact 4.2.3 Connecting the analog output

A dual current output for a remote recorder or P.I.D. regulators is available on terminals 14-15-16. Connect to terminals 14-16 for the 1st channel output. Connect to terminals 15-16 for the 2nd channel output. Series connection is required for driving more loads having a total input Resistance lower than 600 ohm. Output current is 0/20 or 4/20 mA isolated.

4.2.4 Checking Before connecting the system to the power supply: - check that all cables are properly fastened to prevent strain on the connections - check that all terminal-strip connections are mechanically and electrically sound



5 PREVENTIVE MAINTENANCE

Controller Quality components are used to give the controller a high reliability. The frequency of such maintenance depends on the nature of each particular application. As in any electronic equipment, the mechanical components, such as switches, relays and connectors, are the most subject to damage. - check for damage of the electrolytic capacitors if the meter is exposed to temperatures above 80 degree C. - check for damage in all the electronic components if the meter is subjected to excessive voltage - check for damage of the electronic and mechanical components if the meter is dropped - repeat periodically the pre-operation check - check that all the connections are free from moisture and contamination Disconnect the power supply to the monitor before performing the following procedures: - Use moisture free air and blow out the interior of the case and terminal board connections as necessary - Inspect the printed circuit boards for dirt and corrosion; clean as necessary and blow dry - Tighten all the terminal-board connections and mounting hardware - Replace the front panel circuit board or the base circuit board Sensor See the instruction manual of the sensor.



CONNECTIONS

1. 2 110 Vac power supply 1. 3 220 Vac power supply 4. Ground 5. 6 A relay N.O. contacts 6. 7 A relay N.C. contacts 8. 9 B relay N.O. contacts 9. 10 B relay N.C. contacts 11. 12 C relay N.O. contacts 12. 13 D relay N.O. contacts 14. Analog output Nr 1 (+) 15. Analog output Nr 2 (+) 16. Analog output Nr 1 and Nr 2 (-) 17. Input W (white wire) 18. Input (green wire) 21. Input BL (black wire) 22. Input R (red wire) 23. Input BR (brown wire) 24.25. Jumper

Fig. 2



DIMENSIONS

DRILL PLAN

Fig. 3

electronics



WARRANTY CERTIFICATE

1) Your product is covered by B&C Electronics Warranty for 5 years from the date of shipment. In order for this Warranty to be valid, the Manufacturer must determine that the instrument failed due to defective materials or workmanship.

2) The Warranty is void if the product has been subject to misuse and abuse, or if the damage

is caused by a faulty installation or maintenance. 3) The Warranty includes the repair of the instrument at no charge. All repairs will be

completed at the Manufacturer’s facilities in Carnate, Italy. 4) B&C Electronics assumes no liability for consequential damages of any kind, and the buyer

by accepting this equipment will assume all liability for the consequences of its use by the Customer, his employees, or others.

REPAIRS

1) In order to efficiently solve your problem, we suggest You to ship the instrument along with the Technical Support’s Data Sheet (following page) and a Repair Order.

2) The estimate, if requested by the Customer, is free of charge when it is followed by the

Customer confirmation for repair. As opposite, if the Customer shall not decide to have the instrument repaired, he will be charged to cover labor and other expenses needed.

3) All instruments that need to be repaired must be shipped pre-paid to B&C Electronics. All

other expenses that have not been previously discussed will be charged to Customer. 4) Our Sales Dept. will contact You to inform You about the estimate or to offer you an

alternative, in particular when: - the repairing cost is too high compared to the cost of a new instrument, - the repairing results being technically impossible or unreliable 5) In order to quickly return the repaired instrument, unless differently required by the

Customer, the shipment will be freight collect and through the Customer’s usual forwarder.

B&C Electronics Srl - Via per Villanova 3 - 20040 Carnate (MB) - P.IVA 00729030965 Tel (+39) 039 63 1721 - Fax (+39) 039 607 6099 - [email protected] - www.bc-electronics.it



TECHNICAL SUPPORT Data sheet

In case of damage, we suggest You to contact our Technical Support by email or phone. If it is necessary for the instrument to be repaired, we recommend to photocopy and fill out this data sheet to be sent along with the instrument, so to help us identifying the problem and therefore accelerate the repairing process. □ ESTIMATE □ REPAIR COMPANY NAME ADDRESS ZIP CITY REFER TO MR./MISS. PHONE MODEL S/N DATE Please check the operator’s manual to better identify the area where the problem seems to be and please provide a brief description of the damage: □ SENSOR □ ANALOG OUTPUT

□ POWER SUPPLY □ SET POINT

□ CALIBRATION □ RELAY CONTACTS

□ DISPLAY □ PERIODICAL MALFUNCTIONING

DESCRIPTION

................................................................................................................................................................

................................................................................................................................................................

................................................................................................................................................................

................................................................................................................................................................

................................................................................................................................................................

................................................................................................................................................................

................................................................................................................................................................

................................................................................................................................................................



N O T E S

od 7685.110 eng - cole-parmer

Documents