Operating instructions Kana 1
Contents
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3. of the enclosure beneath the mounting holes of the front cover The connectors of the external conductors are isolated by separating plate The plate must not be removed The cover of the enclosure must be tightened so that the edges touch the base frame Only then does the push button function properly and the enclosure is tight Before installation please read the safety instructions in chapter 6 Supply voltage 230 VAC 50 60 Hz Li phase conductor neutral conductor amp e RELAY alarm relay 3 common pole 4 opening pole when alarm 5 closing pole when alarm Mounting dimension 110 mm Relay is in alarm position when the mains voltatge is off SENSOR CONNECTOR supply pole to sensor 7 supply pole to sensor 8 auxiliary connection SD 4 Separating plate of connectors Mounting holes 24 5 mm BEI his Enclosure depth 35 mm Mains switch OMS 1 a AREA Cable joint OMS 9 SENSOR Check the correct installation depth from the instructions of the separator The sensor alarms Sensor s reference The lowest tip of the sensor when it s upper electrode has to be has to be above the lowest electrode is totally always immersed in level of the separator s outlet OMS immersed in oil the water pipe SENSOR Figure 3 OMS 1 alarm device installation Copyright 2012 Labkotec Oy 4 12 We reserve the right for changes without notice OMS 1 Oil Separator Al
4. IIT Labkotec nyysi c DOES FI 33960 PIRKKALA FINLAND Tel 358 29 006 260 Fax 358 29 006 1260 16 3 2012 Internet www labkotec com D15530 e 1 12 OMS 1 Oil Separator Alarm Device 9 Installation and Operating Instructions Copyright 2012 Labkotec Oy We reserve the right for changes without notice OMS 1 Oil Separator Alarm Device Installation and Operating Instructions TABLE OF CONTENTS 4 5 6 T ciii lp Ee TION PENES suse ice EU m ZZ CONS Ges ON sore Zid ADC NOMA d eue eeeneee 3 1 Modes of operation cccccccceccccsececceeeesseeeeeeeeeesseeeeseeeeseeeesseneeees TROUBLE SHOO TING iiie eire tb cc etam p ac eu xp eeu ao ena Eu das EE aima qinPR iqQec SAFETY INSTRUC TIONG soins eS TECHNICAL DA lp APPENDIX 1 OMS SYSTEM DRAWING SYMBOLS A Warning Attention Ex Pay special attention to installations at explosive atmospheres E Device is protected by double or reinforced insulation D15530 e Copyright 2012 Labkotec Oy 2 12 We reserve the right for changes without notice OMS 1 Oil Separator Alarm Device D15530 e Installation and Operating Instructions 1 GENERAL OMS 1 is an alarm device for monitoring the thickness of the oil layer accumulating in an oil separator The system consists of OMS 1 c
5. alarm Copyright 2012 Labkotec Oy The operation of the alarm device should be checked always after the installation Also check the operation always when emptying the separator or at least once every six months 1 Immerse the sensor into water The device should be in normal mode 2 Lift the sensor up in air or oil An Oil alarm should be generated see chapter 3 1 for more detailed description 3 Clean up the sensor 4 Immerse the sensor back into water The alarm should go off after a delay of 10 sec A more detailed description of the operation is provided in chapter 3 1 If the operation is not as described here check connections and cabling If necessary contact a representative of the manufacturer Sensor is totally immersed in water Mains LED indicator is on Other LED indicators are off Relay is energized Sensor is immersed in oil the sensor gives an alarm when the upper electrode is in oil Mains LED indicator is on Oil Alarm LED indicator is on Buzzer on after 10 sec delay Relay de energize after 10 sec delay Note The same alarm takes place when OMS sensor is in the air After removal of an alarm the Oil Alarm LED indicator and buzzer will be off and relay will be energized after 10 sec delay Sensor cable break short circuit or a broken sensor Mains LED indicator is on Sensor circuit Fault LED indicator is on after 10 sec delay Buzzer is on after 10 sec delay The relay de energ
6. arm Device Installation and Operating Instructions 2 2 OMS sensor 2 3 Cable joint Copyright 2012 Labkotec Oy OMS sensor should be installed as described in figure 3 The sensor gives an alarm when the upper electrode is in oil Please check the correct installation depth also from the instructions of the oil separator Fig 4 Cable joint Connections of the sensor cable inside the cable joint are explained in figure 3 If shielded cable is used cable shields and possible excess wires need to be connected to the same point in galvanic contact Please make sure that the sensor and cable between OMS 1 control unit and the sensor do not exceed the maximum allowed electrical parameters see chapter 7 Technical data IP rating of the cable joint is IP68 Make sure that the cable joint is closed properly Notice in cabling Risk of electrostatic charging If the sensor cable must be extended and there is a need for equipotential grounding it should be done with the junction box LJB2 The cabling between the OMS 1 control unit and the junction box should be done with a shielded twisted pair instrument cable Maximum cable length is 100 m 5 12 We reserve the right for changes without notice D15530 e OMS 1 Oil Separator Alarm Device D15530 e Installation and Operating Instructions 3 3 1 OPERATION Functionality test Modes of operation Normal mode no alarms Oil alarm Fault alarm Reset of an
7. hat the below menSoned apparatus conforms to the essential requirements of the EMC directive 2004 108 EY Low Voltage directive LVD 2006 95 EC and ATEX directive 94 Q EC Description of the apparatus Measuring and control unit with sensor Type OMS 1 control unit with OMS sensor Manufacturer Labkctec Oy Mytlyhaantie 6 F1 33960 Pirkkala FINLAND The construction of the appliance is in accordance with the folowing standards EMC EN 61000 6 1 2007 Electromagnetic compatibility Generic standards Immunity for residential commercial and light industrial environments EN 61000 6 3 2007 Electromagnetic compatibility Generic standards Emission standard for residential commercial and light industrial environments EN 61000 3 2 2006 Electromagnetic compatibility Product family standard Harmonic current EN 61000 3 3 1985 Electromagnetic compatibility Product family standard Voltage changes fluctuations and flicker sensation LVD EN 61010 1 2010 Safety requirements for electrical equipment for measurement control and laboratory use Part 1 General requirements ATEX EN 60079 0 2011 Electrical apparatus for explosive gas atmospheres Part 0 General requirements EN 60079 11 2012 Explosive atmospheres Part 11 Equipment protection by intrinsic safety T EN60079 25 2010 Explosive atmospheres Part 25 Intrinsically safe electrical systems EN60079 26 2007 Explosive atmospheres Part 26 Equ
8. ight 2012 Labkotec Oy 7 12 We reserve the right for changes without notice OMS 1 Oil Separator Alarm Device D15530 e Installation and Operating Instructions 4 TROUBLE SHOOTING Problem MAINS LED indicator is off Possible reason Device doesn t get supply voltage Todo 1 Check that power separation switch is not switched off 2 Measure the voltage between poles N and L1 It should be 230 VAC 10 Problem No alarm when sensor in oil or air or the alarm will not go off Possible reason Sensor is dirty Todo 1 Clean up the sensor and check the operation again Problem FAULT LED indicator is on Possible reason Resistance in sensor circuit too high cable break or out of connector or too low cable in short circuit The sensor might also be broken Todo 1 Make sure that the sensor cable has been connected correctly to the OMS 1 control unit 2 Disconnect sensor s wire and measure resistance between and wires The measured resistance should be 46 48 kQ 3 If it is possible measure also resistance between wire and sensor s upper electrode The measured resistance should be 1 1 1 3 KQ 4 If the resistance values in items 2 and 3 are correct then OMS 1 control unit is defective otherwise problem is in cabling or in sensor If the problem can not be solved with the above instructions please contact Labkotec Oy s service Attention If the sensor is located in an explosive atmosphere
9. ipment with equipment protection level EPL Ga EC type examination certificate VTT 12 ATEX 003X Ex classification I 1 G Ex ia Il B Ta 30 50 C OMS 1 control unit 1G ExiallAT6Ga Ta 30 50 C OMS sensor Production quality assurance notification VTT 01 ATEX Q 001 Notified Body VTT Expert Services Ltd notified body number 0537 Address of the notified body P O Box 1001 FI 02044 VTT Finland This product is CE marked since 2012 Signature The authorized signatory to this declaration on behalf of the manufacturer and the Responsible Person based within the EU is identified below Pirkxala 27 2 2012 Labkotec Oy Labkotec Oy Mylyhaantie 6 FI 33960 Pirkkala Finland Tel 358 29 006 260 Fax 358 29 008 1260
10. ize after 10 sec delay When pressing the Reset Test push button Buzzer will go off If the buzzer is not reset it goes off automatically after three days 6 12 We reserve the right for changes without notice OMS 1 Oil Separator Alarm Device D15530 e Installation and Operating Instructions TEST FUNCTION Test function provides an artificial alarm which can be used to test the function of the OMS 1 alarm device and the function of other equipment which are connected to OMS 1 via its relay A Attention Before pressing the Reset Test button make sure that the change of relay status does not cause hazards elsewhere Normal situation When pressing the Reset Test push button Oil Alarm and Fault LED indicators are immediately on Buzzer is immediately on Relay de energize after 2 sec of continuous pressing When the Reset Test push button is released LED indicators and buzzer go immediately off Relay energize immediately Alarm on When pressing the Reset Test push button for the first time Buzzer will go off When pressing the Reset Test push button after that Fault LED indicator is immediately on Oil Alarm LED indicator remains on Buzzer remains on If it has been reset earlier it will return to be on When the Reset Test push button is released The device returns right away to the preceding status Fault alarm on When pressing the Reset Test push button The device does not react to the test at all Copyr
11. on box Equipotential ground must be earthed The device does not include a mains switch A two pole mains switch 250 VAC 1 A which isolates both lines L1 N must be installed in the main power supply lines in the vicinity of the unit This switch facilitates maintenance and service operations and it has to be marked to identify the unit When executing service inspection and repair in explosive atmosphere the rules in standards EC EN 60079 17 and IEC EN 60079 19 about instructions of Ex devices must be obeyed Copyright 2012 Labkotec Oy 9 12 We reserve the right for changes without notice OMS 1 Oil Separator Alarm Device D15530 e Installation and Operating Instructions 7 TECHNICAL DATA OMS 1 control unit OMS sensor Dimensions 125 mm x 75 mm x 35 mm LxH x D Principle of operation Measurement of conductivity Operation temperature 30 C 50 C IP classification IP68 Supply voltage 230 VAC x 10 50 60 Hz Temperature Operation 0 C 60 C The device is not equipped with a mains Safety 30 C 60 C switch Cable Oil proof cable 2 x 0 75 mm Standard max length of the fixed cable is 15 m Can be extended up to 100 m Relay output Potential free relay output EMC 250 V 5 A 100 VA Emission IEC EN 61000 6 3 Operational delay 10 sec Relay de Immunity IEC EN 61000 6 1 energize at trigger point Ex classification 1 G ExiallA T6 Ga nidi ECE ONO Ole lans i dii According to IEC EN
12. ontrol unit OMS sensor and a cable joint SYSTEM COMPONENTS 4 OMS 1 control unit OMS oil alarm sensor with fixed cable 3 Cable joint Figure 1 Oil separator supervision with OMS 1 alarm device OMS sensor is installed into the light liquid storage chamber and gives an alarm when the chamber oil layer reaches a pre determined level The sensor is normally immersed in water The function is based on the measurement of the electrical conductivity of the surrounding liquid water conducts electricity much better than oil Oil separator is regarded as potentially explosive Ex area OMS 1 sensor can be installed in a zone O 1 or 2 potentially explosive area but the control unit must be mounted in a safe area The LED indicators push button and interfaces of the OMS 1 control unit are described in figure 2 OMS 1 USER INTERFACE FEATURES 1 LED indicator for mains 2 LED indicator for alarm 3 LED indicator for fault 4 Alarm Reset Test push button 5 Connector for OMS sensor blue Relay output for monitoring and control purposes grey T Supply voltage grey Figure 2 OMS 1 control unit features Copyright 2012 Labkotec Oy 3 12 We reserve the right for changes without notice OMS 1 Oil Separator Alarm Device D15530 e Installation and Operating Instructions 2 INSTALLATION 2 1 OMS 1 control unit OMS 1 control unit can be wall mounted The mounting holes are located in the base plate
13. the multimeter must be Exi approved Copyright 2012 Labkotec Oy 8 12 We reserve the right for changes without notice OMS 1 Oil Separator Alarm Device D15530 e Installation and Operating Instructions 5 REPAIR AND SERVICE The sensor should be cleaned and the operation should also be tested when emptying the oil storage chamber or at least once every six months The easiest way to check the operation is to lift the sensor up in the air and to put it back to the separator The operation is described in chapter 3 For cleaning a mild detergent e g washing up liquid and a scrubbing brush can be used In case of queries please contact Labkotec Oy s service labkotec service labkotec fi 6 SAFETY INSTRUCTIONS OMS 1 control unit must not be installed in potentially explosive atmosphere Sensors connected to it may be installed in zone 0 1 or 2 potentially explosive atmospheres In case of installations in explosive atmospheres the national requirements and relevant standards as EC EN 60079 25 and or IEC EN 60079 14 must be taken into account Warning If the cabling is voltage tested the sensor must be disconnected If electrostatic discharges can cause hazards in the operating environment the device must be connected into equipotential ground according to requirements with regards to explosive atmospheres Equipotential grounding is made by connecting all conductive parts into same potential e g at the cable juncti
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