multistar mds / mgs securat alarm device...

A C O S e p a r a t o r s

Operating manual 2011-02-22 edition

Multistar MDS / MGS

For a safe and proper use, read operating manual and further product-related documents thoroughly. Hand on to end user and keep up to product disposal.

0150.33.93_V1.2

Securat Alarm device V2.0

SK2 and SB1 alarm devicesSK2 and SB1 alarm devices for operation in zone 0 for petrol separators and coalescence separators from cast iron and stainless steel as per DIN 1999 1-6 / EN 858

General information

2

General information

Key product advantages

■ Approved for operation in Ex-area zone 0 ■ Simple assembly / adjustment

If old plants are reconstructed, the connecting line (with at least 2 conductors) may remain the same

■ Max. cable lenth between monitoring device and oil sensor 500 m

Terminal con-nection box

Monitoring device

Connecting cable

Over-fill sensor

Oil sensor

General information

3

General information ..................................................................................... 2Key product advantages ................................................................................ 2

1. Description ............................................................................................. 51.1 Requirements ........................................................................................ 51.2 Areas of application ............................................................................... 51.3 Application limitations ............................................................................ 61.4 Design ................................................................................................. 61.5 Monitoring device .................................................................................. 61.6 Terminal connection box ......................................................................... 61.7 Connecting cables ................................................................................ 71.8 Oil sensor ........................................................................................... 71.9 Over-fill sensor .................................................................................... 71.10 Sensor holder .................................................................................... 7

2. Function ................................................................................................. 82.1 Operation ............................................................................................. 82.2 Alarm ................................................................................................... 82.3 Fault .................................................................................................... 8

3. Technical data ...................................................................................... 93.1 Monitoring device .................................................................................. 93.1.1 Fuses in the device ............................................................................. 93.2 Oil sensor ............................................................................................. 93.3 Over-fill sensor .................................................................................... 103.4 Terminal connection box ....................................................................... 103.5 Connecting cable................................................................................. 103.6 Sensor holder ..................................................................................... 10

4. Installation ............................................................................................ 114.1 Brief instruction ................................................................................... 114.2 Monitoring device ................................................................................ 114.3 Electrical connection ........................................................................... 134.4 Connecting cable................................................................................. 144.5 Terminal connection box ....................................................................... 14

5. Assembly and setting dimensions ........................................................... 15

6. Commissioning / Functional check ......................................................... 186.1 Check of function of monitoring device .................................................. 186.2 Check of oil sensor .............................................................................. 186.3 Check of over-fill sensor ....................................................................... 186.4 Separator ........................................................................................... 196.5 Readiness for operation ...................................................................... 196.6 Check of device .................................................................................. 19

General information

4

7. Operation ............................................................................................. 207.1 Visual and function test ........................................................................ 207.2 Alarm signals ...................................................................................... 207.3 Fault signals ....................................................................................... 20

8. Servicing .............................................................................................. 218.1 Inspection........................................................................................... 218.2 Maintenance ....................................................................................... 21

9. Faults and clearance ............................................................................. 22

10. Spare parts list ................................................................................... 23

11. Miscellaneous ..................................................................................... 2311.1 Guarantee ......................................................................................... 2311.1.1 Guarantee conditions! ...................................................................... 2311.1.2 Safety notes .................................................................................. 2411.2 Staff ................................................................................................ 2411.3 Hazards arising from non-compliance ................................................... 24

12. EC Type Approval Certificate................................................................ 25

13. Conformity Declaration ........................................................................ 29

14. Manufacturer declaration .................................................................... 30

Description

5

1. Description

1.1 Requirements

Light-oil separators can only work properly when the retained light-oils are regularly removed and the coalescence insert is regularly cleaned. The safety system for the light-oil separators therefore automatically monitors the main operating conditions in petrol separators and coalescence separators as per EN 858 and in oil pans.

■ The safety device for light-oil separators provides early warning signals It automatically controls two states:

■ The max. light-oil layer thickness in petrol and coalescence separators corresponds to the point when the maximum oil storage volume is reached.

■ The max. over-fill in petrol/coalescence separators (corresponding to max. contami-nation of the coalescence material in the case of coalescence separators) or re-aching a predefined filling level in an oil pan signal the right time for maintenance to be carried out. This ensures optimum economical operation of the system.

1.2 Areas of application

The alarm device can be used in locations subject to explosion hazards such as:

■ Petrol separators EN 858 ■ Coalescence separators EN 858 ■ Oil pans ■ Oil collecting containers

The safety device for light-oil separators can also be retrofitted.

Description

6

1.3 Application limitations

■ The cables and the plastic components of the over-fill sensor and oil sensor are not resistant to aggressive wastewater.

■ The maximum permissible cable length between the monitoring device and the oil sensor is 500 m.

■ If liquids with conductivities < 10 µS flow into the separator, they can detri-mentally affect the proper functioning of the oil sensor (for help see „Mal- functions/Remedy“ chapter).

1.4 Design

The safety device for light-oil separators consists of the following components:

1.5 Monitoring device

The monitoring device is classified as an associated electrical device under DIN EN 60079-11 with one intrinsically safe control circuit. The electronic switching of the device is housed in a wall cabinet with a separate terminal connection box. The terminals for connecting the intrinsically safe circuit are blue and laid out separately from one another and the other terminals in accordance with DIN EN 60079-11 (see Electrical Connection chapter for details on terminal assignment).

1.6 Terminal connection box

The terminal connection box is made of metal. Connection of probes is carried out by means of single conductor connector.

Description

7

1.7 Connecting cables

Flexible control line LIYYÖ-OB 2X0.75 blue. Length as per requirement, maximal 500m. Differently coloured cables can also be used, for instance if labelling is identifying intrinsi-cally safe circuit. The cable should be laid in a protective pipe if buried in the ground.

1.8 Oil sensor

Conductivity sensor with two electrodes; connection cable 5m.

1.9 Over-fill sensor

Float switch made of stainless steel; connection cable 5m.

1.10 Sensor holder

Specific for each system, with different shapes.

Function

8

2. Function

2.1 Operation

Green LEDs display trouble-free operation.

2.2 Alarm

In connection with the monitoring device, oil sensor and over-fill sensor can trigger off an alarm independently from one another.The visual alarm signals on the monitoring device are carried out almost instantaneous-ly, separate for both control circuits, by means of LEDs (red flashing). They automatically stop after clearing the fault and resetting with „Off“ button.The audible alarm signals (buzzer) and the external alarm signals are separated alarm signals and are saved. They are triggered off only when the oil sensor or the over-fill sensor alarms continue for approx. 3 s. Pressing the „Off“ button turns off the audible alarm. The external alarm signals can only be reset to normal when there is neither an alarm state nor a mains failure. This is achieved by again pressing the „Off“ button. The relevant testing buttons „Test“ must be pressed to test the function of the alarm inputs.

2.3 Fault

In the case of mains failure or if the device is defective, a potential-free signal is available at the terminal strip (terminal 3-5).

Technical data

9

3. Technical data


Mains connection 230 V AC ; 50-60 Hz; app. 3.2 VA

Sensor circuit AC terminals 1- 2- Connection for oil sensor 20083- Connection for over-fill sensor 20082

- Intrinsically-safe circuit- Intrinsic safety Ex ia II C (corresponds to Zone 0 specifications)

- Electrical data see EG Type Approval Certificate TÜV 08 ATEX 554762

Housing for inside and outside assembly- Dimensions app. 165x190x82.5 mm,- Protection type IP 65,- Ambient temperature ca. -20...+40 °C)

„Alarm“ output oil layer terminal 9-11

(Relay-changeover-contact, monostable)

Nom. voltage : 250 V (AC)Nom. current : 3 A (AC)Nom. switching capacity (> cos. phi 0.7): 100 VA (AC)

„Alarm“ output over-fill terminal 6-8



„Fault“ output mains/device terminal 3-5



LED display oil layer Operation : green ; Alarm : red flashing

LED display over-fill Operation : green ; Alarm : red flashing

Audible signal Alarm Piezoelectric buzzer

3.1.1 Fuses in the deviceF1 T 5 x 20 100 mAF2 T 5 x 20 160 mA F3 T 5 x 20 100 mA

Type: ESKA 522.507Type: ESKA 522.509Type: ESKA 522.707

3.2 Oil sensor

Housing Modified Polyoxymethylenemax. operation temperature 60 °C

Electrodes Stainless steel DIN 4571

Connecting cable PVC cable ; BAM 3.12/3543/92 ; 5m long ; blue

Technical data

10

3.3 Over-fill sensor

Float Stainless steel : (AISI 304); modified Polyoxymethylene max. operation temperature 60 °C

Contact 1 NOC

Connecting cable PVC cable ; BAM 3.12/3543/92 ; 5m long ; blue


Metal 104x60x50 mm incl. screw-joint

3.5 Connecting cable

Type: LIYYÖ-OB 2x0.75 blue Operating capacity: conductor/conductor 120nF/km Inductivity : 0.65mH/km

3.6 Sensor holder

Various shapes and materials are available in various sizes depending on the system

Installation

11

4. Installation

4.1 Brief instruction:

➜ Remove from the packaging and check everything has been delivered ➜ Assemble the monitoring device ➜ Lay the connecting cables ➜ Fix the terminal connection box in place ➜ Install the sensor holder with the pre-assembled sensor(s) ➜ Check the height of the sensors (if necessary) and readjust if required ➜ Cut the sensor connection cable to the appropriate length ➜ Make the electrical connections in accordance with the wiring diagram ➜ Carry out the function tests ➜ Tighten up the cable glands on the terminal connection box in accordance with EN

50262 ➜ Fill the separator with water (not required in the case of oil pans) ➜ Check the settings of the sensor(s) and readjust if necessary ➜ Carefully seal the terminal connection box with the cover ➜ The alarm system is now ready for operation


The monitoring device (associated electrical apparatus) must be installed outside of the area at risk of explosion because only the control circuit for the oil sensor and the over-fill sensor is intrinsically safe.The device is suitable for inside and outside installation. When installed outside, it must be protected from direct sunlight as well as from permanent humidity (degree of pollution 3) by suitable measures.In addition, the device should also be installed in a controlled and/or protected environ-ment to safeguard the type of protection. The device must be taken out of operation if it suffers mechanical damage or if liquid collects inside. If the cover has been opened, please ensure that the seals are properly in place when closing the cover again.Installation and assembly of electrical equipment must be carried out by a properly quali-fied electrician.

Installation

12

Installation dimensions:

82,5

165

10

10

19

74

27 28

165

29,5

13

0

16

0

19

0

151

M�12 M�20 M�20

42

97

126,5

11

Installation

13

4.3 Electrical connection

WARNING

Hazard by electricity

Observe VDE directives (0100,0170), particularly installation regulations for electrical plants in areas at risk of explosion EN 60 079-14.

Securat V2.0 monitoring device

Installation

14

4.4 Connecting cable

The connecting cable between the terminal connection box and the monitoring device must not be longer than 500m. Follow the installation regulations for intrinsically safe circuits when laying the cable – EN 60079-14.The cable must be laid in a protective pipe if laid underground. Intrinsically safe circuits must be laid separately from other circuits.


The terminal box is usually installed within the Ex area. When installed in an Ex-area of zone 0, it must be ruled out that terminal connection box is exposed to friction or impacts to avoid spark generation. Electrostatic charging during installation, operation and mainte-nance must by all means be ruled out. The terminal connection box must be mounted in the maintenance shaft directly below the cover or the cover plate. Installation notes must be observed.

Wiring diagram

Monitoring device

bl

br

bl

br

bl

br

1 2

Oil sensor

Over-fill sensor

Assembly and setting dimensions

15

5. Assembly and setting dimensions

Securat V2.0 alarm device SB1 Art. no. 6751.03.00 and 6751.13.00 for Curator-GG Design: without top

Housing bore SB 1

AB

C D

illustrated: : Curator GG NS 1.5 500 frostfree depthSecurat V2.0 alarm device SB 1 art. no. 6751.03.00

Connecting cable BAM 3.12/3543/92

Seal 20 mm bore for extension cable (locally) 1)

Terminal connection box

Connecting cable of blue sensors

AB

C D

70

100

illustrated: : Curator GG NS 1.5 without topSecurat V2.0 alarm device SB 1 art. no. 6751.03.00

ACO Securat alarm device art. no. 6751.03.00Housing bore SB 1 design without top

1 x M16 locally

1 x M16 locally

1) Remark: Bore must be enlarged (on site) if a local line is used for local

potential equalisation.

Securat V2.0 alarm device SB1Art. no. 6751.03.00 and 6751.13.00for Curator-GGDesign: with top

Setting dimensionsNS A B C D

1.5 380 215 340 285

3 380 355 285 230

6 480 315 395 330


16

Securat V2.0 alarm device SK2Art. no. 6751.63.00Coalisator-GGDesign: without top

SECURAT Alarmanlage SK 2 Art.-Nr. 6751.63.00Ausf.: Abscheider ohne Aufsatz

®

2 x M16 locally

Sondenkabel (5 m lang)SLYCYÖ 2 x 1 mm

Sondenhalter

Aufstau-sonde

Koal

esze

nzfil

ter

Ölsonde

2

C

B

A

D

80

10030

70

2 x M16 locally

illustrated: Coalisator GG NS 1.5 without topSecurat V2.0 alarm device SK 2 art. no. 6751.63.00

ACO Securat V2.0 Alarm device Art. no.: 6751.03.00Housing bore SB 1 design without top

NS A B C D

1.5 265 215 395 520

3 265 355 525 700

6 415 315 635 770

Sensor cable (5 m long)BAM 3.12/3543/92

Sensor holder

min. 4 mm2

Over-fillsensor

Coal

esce

nce

filte

r

Oil sensor

C

B

A

D

80

illustrated: Coalisator GG NS 1.5 500 frostfree depthSecurat V2.0 alarm device SK 2 art. no. 6751.63.00

Connecting cable of blue sensors

Connecting cable

BAM 3.12/3543/92

1) Remark: Bore must

be enlarged (on site)

if a local line is used

for local potential

equalisation.


Sensor holder

min. 4 mm2

Over-fillsensor

Coal

esce

nce

filte

r

Oil sensor

C

B

A

D

80

illustrated: Coalisator GG NS 1.5 500 frostfree depthSecurat V2.0 alarm device SK 2 art. no. 6751.63.00

Seal 20 mm bore for extension cable (locally) 1)

Terminal connection box


17

Securat V2.0 alarm device SK1 and SK2Art. no. 6751.04 and 6751.64.00for Curator and Coalisator E NS 10 and NS 20


Over-fill sensor

A

B

InletDN 200

OutletDN 200

NS A B10 365 820

20 655 1070

Securat V2.0 alarm device SK2Art. no. 6751.64.00for Coalisator-R NS 3, 6 and NS 10

NS A B3 810 1165

6 1155 1550

10 840 1300

Commissioning /

18

6. Commissioning /Functional check

6.1 Check of function of monitoring device

Caution!When installation has been completed, it is essential that the proper functioning of the alarm is tested before use!Carrying out the test is easiest when the sensors are dismantled.

➜ Submerge the oil sensor in a bucket of water and allow the over-fill sensor to hang down freely.

■ Operating signal oil layer/accumulation (green) lights.

6.2 Check of oil sensor

➜ Take the oil sensor out of the water. ■ Alarm signal oil layer (red) flashes, operating signal oil layer goes out. ■ Audible alarm sounds (delayed 5 sec.). ➜ Switch off audible alarm by means of Audio Warning Off. ■ «Alarm» signal available as potential-free contact (terminal 9-11). ➜ Immerse oil sensor in water. ➜ Acknowledge alarm signal by means of Audio Warning Off.

6.3 Check of over-fill sensor

➜ Lift sensor. ■ Alarm signal over-fill (red) flashes, operating signal over-fill goes out. ■ Audible alarm sounds (delayed 5 sec.). ➜ Switch off audible alarm by means of Audio Warning Off. ■ Return float into its starting position. ■ «Alarm» signal available as potential-free contact (terminal 6-8) ➜ Acknowledge alarm signal by means of Audio Warning Off.

Functional check

19

6.4 Separator

➜ Fill separator with water (not applicable with pans). ➜ Set sensor/s in accordance with operating manual. ➜ Check sensor setting and readjust, if applicable.

6.5 Readiness for operation

The alarm device is ready for operation

6.6 Check of device

During operation, device can be checked by means of the relevant test buttons. The fault signals are switched off by means of the Audio Warning Off button.

Operation

20

7. OperationThis device should only be operated, serviced and maintained by staff who are familiar with: the operating instructions and the directions it contains, the valid regulations on health and safety at work, and accident prevention!!

7.1 Visual and function testWhen operating the alarm system, it is only necessary to carry out regular inspection (recommendation: every six months) and to occasionally conduct visual and function tests on the monitoring device. The monitoring device is checked by pressing the test buttons as described in the Function Test chapter.

7.2 Alarm signalsare given visually and audibly and are available at the terminal strip as potential-free signals when the max. permissible oil layer thickness is reached in the separator, or if an impermissi-ble amount of liquid has accumulated (over-fill).

7.3 Fault signal

is a potential-free signal for: ■ Mains failure ■ Defective monitoring device

Act immediately in the case of alarm or fault signal ➜ Inform control office ➜ Find cause and clear

NotesIf the separator is not emptied at the right time despite activation of an alarm sig-nal, more waste water and light-oil can flow into the system. In the case of separators with float switch, this can cause the float to close and the outflow to shut so that no wastewater flows out. This gives rise to over-fill which is signalled by the over-fill sensor. If wastewater continues to flow in, this can raise the layer of light-oil above the oil sensor. The electrodes are then covered by water again and the visual alarm signal can be erased even though the max. permissible amount of light-oil or even an excessive amount of light-oil is still in the separator. Whenever there is an alarm signal, it is essential in each case to check the device immediately to determine whether the light-oil has been properly extracted before shutting off the alarm. In addition, if alarm signal for over-fill was triggered off, an alarm signal for oil layer thickness cannot be triggered off.

Servicing

21

8. Servicing

8.1 Inspection

The alarm system must be inspected at regular intervals.This involves carrying out the function checks on the alarm system as well as checking the condition of the oil sensor, the over-fill sensor, the terminal connection box and the sensor holder.

8.2 Maintenance

The oil sensor and the over-fill sensor must be serviced. This normally takes place together with the separator maintenance, preferably twice a year.

➜ Take sensors out of the separator. ■ Alarm signal (red) flashes, operating signals go out. ■ Audible alarms sound (delayed 5 sec.).

➜ Clean oil sensor, over-fill sensor and sensor holder (e. g. with cold cleaner).

➜ Reinsert sensors into separator.

➜ Refill separator with water until it flows over into outlet (the oil sensor must immerge in water).

➜ Switch off alarm signal oil layer/over-fill and acknowledge (see functional check).

➜ The alarm device is ready for operation.

Faults and clearance

22

9. Faults and clearanceFault/malfunction Possible cause Clearance“Malfunction” signal is onAll LEDs are out No power

Monitoring device is defectiveCheck the power supply circuitIf there is voltage: factory repair!

„Oil layer“Alarm cannot be turned off after cleaning of the separator

No alarm signal despite alarm status

Oil sensor is too highOil sensor is still dirtySeparator is empty or only partlyfilled with waterCable connection to the oil sensoris broken

Oil layer increased by steadily high wastewater throughflowMonitoring device is defective

Correct the setting levelsThoroughly clean the oil sensorFill separator

Check oil sensor connecting cable andits terminal connections

Reset the oil sensor higher if required (unsuitable standard setting).Operate test button „oil sensor“ (app. 2 s).If there is no alarm: factory repair!

„Over-fill“Alarm cannot be turned off even though there is no over-fill

No alarm signal although there is over-fill

Cable connection to over-fill is short-out

Monitoring device is defectiveOver-fill sensor is stuck in standard position; movement blockedOver-fill sensor is defectiveMonitoring device is defective

Replacement of defective parts

Works repair!Remedy causeCheck float liftingExchange over-fill sensorOperate test button „over-fill“ (app. 2 s).If there is no alarm: factory repair!

Spare parts list

23

10. Spare parts listDesignation Art. no.Monitoring deviceConnecting cable LIYYÖ-OP 2x0.75between terminal connection box and monitoring deviceTerminal connection boxOver-fill sensorOil sensor

0150.33.88

0150.33.920150.33.910150.33.900150.33.89

11. Miscellaneous

11.1 Guarantee

11.1.1 Guarantee conditions!

If it is already known or expected that commissioning will not take place until quite some time after installation, the following measures should be implemented to protect (preserve) the alarm system:

■ Protect the alarm system from damp and dirt (especially the electrical parts). If the time period between delivery and commissioning exceeds 1 year, the system must be tested by ACO Passavant After-sales Service (there will be a charge for this service).No guarantee is given in the following cases in particular:

Unsuitable or improper use Faulty assembly or commissioning by the purchaser or third parties Natural wear Parts subject to wear and tear Faulty or negligent treatment, improper servicing in violation of these operating

instructions Chemical, electro-chemical or electrical influences – in so far as not attributable

to the manufacturer The guarantee for problem-free functioning is only accepted after careful obser-

vance of all the specifications.

We recommend that a service contract be taken out with our Factory Customer Care Service.

Miscellaneous

24

11.1.2 Safety notes

These operating instructions contain general instructions which must be obser-ved when installing, operating and servicing the appliance. It is therefore essen-tial that these operating instructions are read by the fitter and the responsible technician (operator) before assembly and commissioning. These operating instructions must also be permanently available at the location of the alarm system. All of the specified general safety instructions must be observed.

11.2 Staff

The staff used for operating, servicing, inspecting and assembling must have the proper qualifications for undertaking this work. Areas of responsibility, duties and supervision of the staff must be precisely regulated by the operator. If the staff do not have the necessa-ry skills, they must be trained and instructed accordingly. The operator must also ensure that the contents of the operating instructions are completely understood by the staff members. Measures have to be taken by the operator on site to protect the staff before the alarm system is serviced.

The system must be ventilated and all of the necessary safety measures imple-mented before anyone enters the separator. All of the relevant accident prevention regulations must be observed.

If the separator leaks, hazardous materials (e.g. explosive, chemically aggressive, biologi-cally aggressive, poisonous, hot) must be removed without endangering people or the environment. All legal stipulations must be observed.Any danger arising from electrical power must be excluded (special compliance with specific national regulations and the regulations of the local power utility).

11.3 Hazards arising from non-compliance

Non-compliance with the safety instructions can give rise to hazards for people and the environment and the system itself. Non-compliance with these safety instructions annuls all guarantee rights and claims for damages.

EC Type Approval Certificate

25

12. EC Type Approval Certificate


26


27

Translation of EC Type Approval Certificate

1) EC Type Approval Certificate (2) Equipment and protective systems intended for use in potentially explosive atmospheres, Directive 94/9/EG

(3) EC type approval certificate number TÜV 08 ATEX 554762

(4) for the equipment: Monitoring device GEFAS 20081

(5) of the manufacturer: GEFAS Elektrotechnik GmbH

(6) address: Schulstrasse 18 56370 Rettert

order no. : 8000554762

order date: 25.06.2010 (7) The design of this equipment as well as any acceptable variation thereto is specified in the attachment to this EC type approval certificate.(8) As notified body no. 0044 as per Article 9 of the guideline of the council of European Communities of 23rd March 1994 (94/9/ EG), TÜV NORD CERT GmbH certifies that this equipment has been found to comply with the essential health and safety requirements relating to the design and construction of equipment and protective systems intended for use in potentially explosive atmospheres given in Annex II to the Directive. The examination and test results are recorded in confidential report no.: 08 203 554762.(9) Compliance with the essential health and safety requirements has been assured by compliance with: EN 60079-0:2006 EN 60079-11:2007(10) If the sign „X“ is placed after the certificate number it indicates that the equipment is subject to special conditions for safe use specified in the attachment to this certificate.(11) This EC type approval certificate relates only to the concept and testing of the defined appliance in accordance with Directive 94/9/EC. Further requirements of the directive apply to the manufacturing process and supply of this equipment. These are not covered by this certificate.(12) The marking on the equipment must include the following: Ex II (1) G [EEx ia] IIC TÜV NORD CERT GmbH, Langemarckstrasse 20, 45141 Essen, accredited by the Central Agency of States for Safety Technique (ZLS), ident. no. 0044, legal successor of TÜV NORD CERT GmbH & Co. KG ident no. 0032

Director of certification authority

signed: Schwedt

Hannover branch, Am TÜV 1, 30519 Hannover, Fon +49 (0)511 986 1455, Fax +49 (0)511 986 1590


28

13) ATTACHMENT

(14) EC type approval certificate number TÜV 08 ATEX 554762

(15) Description of the equipment:

The monitoring device GEFAS 20081 is an associated electrical apparatus for inside and outside assembly outside the ex area

with an intrinsically-safe sensor circuit, leading to the gas explosive area.

The monitoring device GEFAS 20081 automatically controls the liquid level and the max. permissible light liquid layer in light

liquid separators. Conditions are determined by sensors which are classified as electrical apparatus by the manufacturer (not

part of this certificate).

The electronic switching is applied to a blank which is coated on two sides. Display and operation elements are realised with a

front foil keyboard. Connection of intrinsically-safe circuit is carried out by terminals which are marked in blue colour and which

are arranged separatedly from the terminals for the non-intrinsically-safe circuits.

Technical data

Mains connection Nom. values UN = 230 V AC; 47...64 Hz PN = app. 3.2 VA

Um = 253 V AC

Sensor circuit AC In ignition protection type intrinsical safety Ex ia IIC Terminal 1-2 Max. values: UO = 6.5 V IO = 0.64 mA PO = 1.1 mW LI = 1.25 mH CI = negligibly small Characteristic curve: linear

If capacity and inductivity in concentrated form appear at the same time, the max. permissible values have to be taken from the following table:

IIC LO CO

0.02 mH 7.2 µF 0.1 mH 4.2 µF 2.0 mH 2.1 µF 20.0 mH 1.5 µF 100 mH 1.4 µF

Conformity Declaration

29

13. Conformity Declaration

Name and address of manufacturer: GEFAS Elektrotechnik GmbH

Schulstrasse 18

56370 Rettert

Tel.: +49 (0) 6486 902690 Fax: +49 (0) 6486 902691

Product designation: Monitoring device GEFAS 20081

Type designation: GEFAS 20081

The mentioned product is in accordance to ignition protection type [EX ia] IIC and complies with instructions of guidelines:

2004/108/EG - Guideline for electro-magnetic compatibility94/9/EG - Explosion prevention - directive2006/95/EG - Low voltage directive

Compliance of mentioned product with the essential protective requirements of directives is approved by adherance to the

following standards and check:

Standards:

DIN EN 60079 - 11

DIN EN 60079 - 0

DIN EN 61000 - 6 - 2

DIN EN 61000 - 6 - 3

DIN EN VDE 0 - 100

Check:

EC Type Approval Certificate: TÜV 08 ATEX 554762 dd. 25.06.2010

As associated electrical apparatus, the monitoring device GEFAS 20081 automatically controls the liquid level and

the max. permissible light layer thickness in light liquid separators. In addition, it separates safely intrinsically-safe

circuits from non-intrinsically-safe circuits.

This is declared by the manufacturer (Messrs. GEFAS) with the proof of certification as per ISO 9001:2008 and the

requirements of guideline 94/9/EG for EX-protection, attachment IV. Certificate: 01 100 042191.

Rettert, 15.09.2010 Adletha (CEO) Strack (CEO)

Conformity DeclarationMonitoring deviceSafety appliance for light liquid separators

GEFAS Elektrotechnik GmbHSchulstrasse 1856370 RettertTel.: +49 (0) 6486 902690

Manufacturer declaration

30

14. Manufacturer declaration

Manufacturer‘s Declaration


Schulstrasse 18

56370 Rettert

Tel.: +49 (0) 6486 902690 Fax: +49 (0) 6486 902691

Product designation: Oil sensor for light liquid separators


The mentioned product complies with the following regulations of standards:

DIN EN 60079 - 11

DIN EN 60079 - 0

DIN EN 50039

DIN EN 60079 - 14

As per DIN EN 60079-11 para 5.7, the oil sensor has to be regarded as common electrical apparatus and may

only be used in the ex area Ex ia IIC zone 0 with the monitoring device GEFAS 20081. Installation and connection

have to be carried out as per installation and operating manual GEFAS 20081.


Manufacturer‘s DeclarationOil sensor forlight liquid separators



31



Schulstrasse 18

56370 Rettert

Tel.: +49 (0) 6486 902690 Fax: +49 (0) 6486 902691

Product designation: Over-fill sensor for light liquid separators



DIN EN 60079 - 0

DIN EN 60079 - 11

DIN EN 50039

DIN EN 60079 - 14

As per DIN EN 60079-11 para 5.7, the over-fill sensor has to be regarded as common electrical apparatus and

may only be used in the ex area Ex ia IIC zone 0 with the monitoring device GEFAS 20081. Installation and connec-

tion have to be carried out as per installation and operating manual GEFAS 20081.



Manufacturer‘s DeclarationOver-fill sensor forlight liquid separators


32



Schulstrasse 18

56370 Rettert

Tel.: +49 (0) 6486 902690 Fax: +49 (0) 6486 902691

Product designation: Terminal connection box for light liquid separators


Marking: Ex ia IIC X


DIN EN 60079 - 0

DIN EN 60079 - 11

DIN EN 50039

DIN EN 60079 - 14

As per DIN EN 60079-11 para 5.7, the connection box has to be regarded as common electrical apparatus and

may only be used in the ex area Ex ia IIC zone 0 with the monitoring device GEFAS 20081. Installation and

connection have to be carried out as per installation and operating manual GEFAS 20081 as well as attached

installation instruction.


Manufacturer‘s DeclarationTerminal connection box forlight liquid separator



33

The ACO Group. A strong family you can build on.

ACO Passavant GmbH

Im Gewerbepark 11c36457 StadtlengsfeldTel. +49 (0) 36965 819–0Fax +49 (0) 36965 819–361

www.aco.com

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