User Manual - INTEC Controls
Contents
1. 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O ier vec CONTROLS 6 Maintenance and Inspection 6 1 Inspections For regular examination and calibration of the transmitters by trained technicians we recommend to conclude a service contract with INTEC Wilson Mohr Maintenance and inspection has to be done in regular intervals 6 2 Calibration see section 5 1 and 5 2 e At commissioning and at periodic intervals determined by the person responsible for the gas detection system recommendation every 24 months e After exchange of the sensor element e f in case of aging operational or climatic influences the sensitivity of the sensor falls below 60 in operation calibration will not be possible any more Then the sensor has to be changed 6 3 Exchange of sensor element Consider static electricity See section 3 Sensor should always be installed without voltage applied e Unplug basic PCB EC S carefully from the terminal blocks e Unplug old sensor element from the PCB EC S e Take new sensor element out of original packing e Plug in sensor element into the PCB EC S at X3 e Plugin carefully the PCB EC C at terminal blocks X4 and X5 e Calibrate sensor element see section 5 1 and 5 2 7 Troubleshooting 7 1 Diagnostics at the transmitter Output signal 0 mA an2. anode of the sensor are electrically in contact therefore due to the oxidation there is an electric current proportional to the oxygen partial pressure This current is translated into a 4 to 20 mA signal by the succeeding amplifier The diffusion through the membrane and the thin electrolytic coating are complex temperature dependant electro chemical processes which have an influence on the ion current of the sensor Therefore the sensor is temperature compensated within a specified temperature range The electrolyte the material of the cathode and the composition of the anode are designed in a way that the oxygen diffusing to the cathode is reduced electro chemically The electrolyte is used up by the electro chemical process Thus the life expectance of the sensor is limited to two years Calibration during the sensor life is not necessary Option relay package AT 2R With the PolyGard AT 2R relay package two potential free contacts are available for the connection to external devices The switching thresholds of these relays are selectable via potentiometer in the range of 10 90 96 of the O concentration The hysteresis is programmable via jumpers Additionally the relay mode open circuit or closed circuit is selectable The status of the two relays is displayed via LED Note There is a small quantity of corrosive liquid in the sensor elements If in case of damage persons or objects touch the liquid you have to clean the affe
3. nnne nennen 13 10 2 Installers responsibilities seessesssssssseeeeneeeeeeee enne nnnm 13 10 3 Maintenance med 13 10 4 Limited watrarnty tete e RE PR E RISE UR t EH BRE RC RR ORR Ka RR E e ERRARE SNC Ein 13 PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O ier vec CONTROLS Electrochemical Oxygen Transmitter 1 Intended Use The PolyGard O Analog Transmitter AT 92 1195 with 4 20 mA output and 2 wire connection is used for the continuous monitoring of the oxygen concentration O5 in the ambient air Main fields of application are in laboratories food production etc where changes of the oxygen content are possible The sites intended for use are all areas being directly connected to the public low voltage supply e g domestic commercial and industrial ranges as well as small enterprises The PolyGard O Analog Transmitter is not suitable for the application in areas exposed to explosive hazards 2 Functional Description The chemical process of the measurement is based upon the principle of a galvanic micro fuel cell The target gas and or the ambient air diffuse through a filtering membrane into the measuring cell to the cathode Cathode and
4. range O vol Example 25 vol O5 20 9 96 vol Oz Measuring range O Test gas concentration Control voltage 869 mV 800 mV x 20 9 vol 200 mV 869 mV 20 9 vol 5 4 Commissioning of the Option Relay Package AT 2R Note Option relay package only possible in 3 wire technique 5 4 1 Selection of open circuit closed circuit current operation Each relay can be configured to open circuit current operation or closed circuit current operation via jumper Take the position of the jumpers from the following table Relay R9 Relay R10 Jumper in position Jumper in position Closed circuit mode 9 and 11 20 and 18 Open circuit mode 10 and 12 19 and 21 Factory set Closed circuit mode PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O User na vec CONTROLS 5 4 2 Adjust switching threshold voltage Required instruments e Digital multimeter with range 0 10 VDC accuracy 1 e Screwdriver small Switching threshold voltage can be adjusted in the range of 1 V 9 V 10 90 of the measuring range Adjust switching voltage for relay R 9 e Connect digital multimeter to X9 and Observe polarity e Adjust calculated swit
5. NEC CONTROLS PolyGard AT 1195 v1 Electrochemical Oxygen Transmitter Serial No EC S 003_02 User Manual January 20 2009 PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O ier vec JE Cn CO RULI M 3 2 Functional Descriptor iiri eire pack repressit aa Keri cula vct pai vex tias annnm 3 3 Mounting cip iiio Ede eee preter ei dear ie e Ee cta Ic eite cand dannata 4 3 1 Mou unting InStr ctlons 5 ceci cus aet reet Leg epe aed o Leo ea edet eie ao rae De Cae Ra eu a ep tee 4 3 2 lucrum 4 4 Electrical Conneclioli oi daneben ee oe ics 4 4 1 InstrUctiOri eroe e eee p doe P beet pe ae e qa P eias 4 4 2 Wiring Connectlornii us dec eth Leone i ec se tt e e et a t seat c et ee 5 4 3 Mounting option relay package AT 2R sssssssssssseseeeeeeeeeee nennen nnne nennen nnns 5 5 ConimissionllTU x cnccetecccatinhicnavas WR KRe MEL tanedia pus SiO AQ Meno Und n EK UNT TRO 5 5 1 Zero point callbratiOn tc mt rtt lt Mea n re ca ME E EUR Unc eR ER 6 52 amp Gain calibration uit EPOR ID DIB ER eee ett atte 6 5 3 Calculation of control voltage e a r a nennen enne n nnne nn renen nn 6 5 4 Commissi
6. Warranty Atmospheric 10 Depending on type Depending on type Depending on type Depending on type Depending on type Wall mounting pillar mounting duct mounting depending on type Standard 1 x M 20 Screw type terminal min 0 25 mm max 2 5 mm Max loop resist 500 Q wire resistor controller input resistor EMV directive 89 336 EWG CE One year material without sensor PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 Fax 858 578 4633 amp 888 FX INTEC www inteccontrols com Specification subject to change without notice Printed in USA 090120 User Manual PolyGard O AT 1195 v1 gt INEC age 11 CONTROLS 9 Figures Application Fig 1 shield shield NO shield NC 420mA i o4 COM 24VDC NO OVDC COM Ruhestrom prinzip De energized operation is i Option Zentralgerat Transmitter Central Controls ATX2 11XX R lay Package E AEE EEAS O VDC Nur bei Option Relay Package Only with Option Relay Package Board PCB S AT1195 Option Relay Package AT 2R Fig 2 Fig 3 Position Position Position Jumper No Jumper No Jumper No LLLA PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Moh
7. ching voltage 10 mV see section 5 4 3 by potentiometer P9 Adjust switching voltage for relay R 10 e Connect digital multimeter to X10 and X9 Observe polarity e Adjust calculated switching voltage 10 mV see section 5 4 3 by potentiometer P10 5 4 3 Calculation of switching threshold voltage U threshold mV _8000 mV x alarm threshold O 96 vol 2000 mV Measuring range O vol Example Measuring range O 25 vol Alarm threshold O gt 18 vol 7760 mV U threshold 8000 mV x 18 96 vol 2000 mV 7760 mV 25 vol 5 4 4 Select switching hysteresis The switch off threshold is calculated according to the following formula Uo Uthreshold Unysteresis The switching hysteresis can be selected via jumper to 5 or 10 of the measuring range Depending on the calculated switching voltage one jumper for each relay has to be plugged into the correct position in order to select either 596 or 1096 See table below for jumper positions Calculated Switching Relay 9 Relay R10 threshold voltage hysteresis Jumper in position Jumper in position V 26 1 00 3 50 5 16 3 51 6 50 6 51 9 00 Caution If the calculated voltage is below 1 50 V it s not allowed to adjust a switching differential of 10 The triggered alarm relay would not reset PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp
8. cted areas as fast and carefully as possible with tap water Out of use sensors must be disposed in the same way as batteries PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O ier vec CONTROLS 3 Mounting Caution Electronics can be destroyed by static electricity Therefore do not touch the equipment without a wrist strap connected to ground or without standing on conductive floor 3 1 Mounting instructions When choosing the mounting site please pay attention to the following Installation 1 5 m to max 1 8 m above floor level Select the location of the sensor according to local regulations Consider the ventilation conditions Do not mount the transmitter in the center of the airflow air passages suction holes Mount the transmitter at a location with minimum vibration and minimum variation in temperature avoid direct sunlight Avoid locations where water oil etc may influence proper operation and where mechanical damage might be possible Provide for adequate space for maintenance and calibration work Air duct mounting Mount only in a duct section with minimum air vortex Keep a minimum distance of 1 m 3 5 feet from any curve or obstacle Moun
9. d or Power voltage not applied Measure power voltage at terminal block control voltage OV X4 terminal 3 and 2 18 28 VDC Basic PCB EC S not plugged Plug in the basic PCB EC S correctly in correctly at X4 and X5 Output signal lt 3 mA and or Sensor element not calibrated Calibrate sensor element control voltage 150 mV Control current signal not Sensor sensivity 40 Replace sensor element correct If faults cannot be eliminated by the above mentioned actions or if other faults not described in this table occur please contact the service PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O user Mn vec CONTROLS 7 2 Diagnostics at option relay package AT 2R No relay switching Board AT 2R not installed correctly Plug in AT 2R correctly into board Jumper JP 9 12 and or 18 21 not See fig 3 for correct setting installed Incorrect relay switching Jumper JP 9 12 and or 18 21 not See fig 3 for correct setting installed correctly open and closed circuit mode No relay switching at Switching voltage adjusted and or Check switching voltage calculated threshold setting calculated incorrectlv Relay return differential Differential jumper
10. e connect cable leads to the terminal block Re plug basic PCB in the terminal blocks X4 X5 Close cover 4 3 Mounting option relay package AT 2R Consider static electricity See 3 Mounting Unplug PCB EC S from terminal blocks fixed on base Plug in the relay package at the multipoint connector X2 to the PCB EC S See Fig 2 Secure by the enclosed screw M2 5x 6 at the back side of the PCB EC S Re plug basic PCB in the terminal blocks X4 X5 5 Commissioning Caution Prior to calibration the sensor element must be fully stabilized by applying power voltage for at least one hour without interruption Follow commissioning instructions at any exchange of sensor elements Only trained technicians should perform the following Check mounting location Check power voltage Check PCB EC S for correct mounting at X4 and X5 Check sensor element O2 A2 for correct mounting at terminal X3 of the PCB EC S Calibration of the transmitter if not already factory calibrated Required instruments for commissioning of the transmitter Test gas bottle with target gas O in the range of 20 25 vol alternatively ambient air with 20 9 vol Gas pressure regulator with flow meter Sensor calibration adapter with tube Type CONKIT COMB AT See Fig 4 Digital voltmeter with range 0 10V DC accuracy 1 Screwdriver small Caution Please observe proper handling procedures for test gas bottles PolyGard is a regist
11. ed or gas poisoned The above warranty is in lieu of all other express warranties obligations or liabilities This warranty applies only to the PolyGard transmitter MSR Electronic or INTEC Wilson Mohr shall not be liable for any incidental or consequential damages arising out of or related to the use of the PolyGard transmitters PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120
12. ered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O ier vec CONTROLS 5 1 Zero point calibration For the zero point calibration the 4 mA signal is adjusted without the sensor The zero point is already factory calibrated and only in case of exchange of the sensor the zero point calibration must be carried out again e Remove the sensor from X3 e Connect digital voltmeter to test pin X6 Test for zero point calibration e Adjust the value 200 mV with the potentiometer Zero e Ready e Plug the sensor in X6 again 5 2 Gain calibration e Connect calibration adapter to the sensor element e Connect digital voltmeter to the test pin X6 e Apply span calibration gas 20 25 vol O 300ml min 1 Bar Alternatively apply ambient air 20 9 96 vol only if concentration is known e Wait 2 minutes until the sensor is stable adjust control voltage with potentiometer Gain until the signal corresponds to the calculated value see formula section 5 3 3 mV e Remote calibration adapter with a careful light turn Inspect the correct mounting of the sensor element 5 3 Calculation of control voltage Control voltage mV 800 mV x Test gas concentration O vol 200 mV Measuring
13. not correct Check jumper position too lona PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O AT 1195 v1 8 Technical Data s MEL CONTROLS Electrical Power supply Power consumption 18 28 VDC reverse polarity protected 22 mA max 0 6 VA with relay package Sensor Performance Type of gas Sensor element Measuring range Accuracy Long term zero point drift Response time Sensor life expectancy Mounting height Output signal Analog output signal 35 mA max 1 0 VA Oxygen O2 Electrochemical diffusion 0 25 vol 0 1 vol 4 96 of measured value year too lt 190 s from 20 9 96 to 0 Os 2 years normal operating environment 1 5 to 1 8 m Proportional 4 20 mA load lt 500 Q overload and short circuit protected Optional Operating Environment Humidity Range 2 x relay contacts potential free max 30 VAC DC 0 5 A 0 95 RH non condensing Working temperature Storage temperature 10 C to 50 C 5 C to 30 C Pressure range Physical characteristics Enclosure material Enclosure color Dimensions Weight Protection class Mounting Cable entry Wire connection Wire distance Approvals Listings
14. oning of the Option Relay Package AT 2R ccccccceeeeeeeceeeeeeeeeeeeeeeeeeeseeeeteneees 6 5 4 1 Selection of open circuit closed circuit current operation sssssssssssessss 6 5 4 2 Adjust switching threshold voltage eesssseseeeeeeneenneeeennnnn rrr nnn 7 5 4 3 Calculation of switching threshold voltage ssssssssseeneeeeenee 7 5 4 4 Select switching hysteresis ssssssssssssssssssssseseeeneeee enne tenerent nennen nnn 7 6 Maintenance and Inspection eseeeseeesesseesee enne 8 6 1 Inspections ation eric dE CIC caesar ts ur E RERO Cp et eee emit Ung dae E ane itat det at Ceo EO eee egt 8 6 2 Calibration cdd ee ette te HR e EA e rested dU De Hue de ee rere 8 6 3 Exchange of sensor element eene rennen ntn nennen nne 8 L gt Troubleshooting s s RN 8 7 1 Diagnostics at the transmitter eee ceecccceeeeeeeeseeeeeeeeeeeeseneeeeeeeeeeeeeeeeaaeeseeeeeseesseceeseeeeeeeesneaeees 8 7 2 Diagnostics at option relay package AT 2R ccccccccceeceeeeeeeeeeeeeeeeeeeeeeeeeceeeeeeeeeeeeceeeeeeeeeeeeeeeeeees 9 8 Technical Data olei ei cto xa b avi ei ska CSS EE ada CUR cci aidaa NIRE aaa TRA 10 Meg o e a rene SEN OR ne ne Ne E nee eee ee eee 11 10 Notes and General Information essere eese eene enne 13 10 1 Intended product application essessssesseseseeeeeeeeennenennnnn nm rennen
15. r Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O AT 1195 v1 gt INEC age 12 CONTROLS Calibration set CONKIT COMB AT Fig 4 PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O AT 1495 v1 NEL age 13 CONTROLS 10 Notes and General Information It is important to read this user manual thoroughly and clearly in order to understand the information and instructions The PolyGard transmitters must be used within product specification capabilities The appropriate operating and maintenance instructions and recommendations must be followed Due to ongoing product development MSR and INTEC Wilson Mohr reserves the right to change specifications without notice The information contained herein is based upon data considered to be accurate However no guarantee is expressed or implied regarding the accuracy of these data 10 1 Intended product application The PolyGard O AT 1195 transmitters are designed and manufactured for control applications and air quality compliance in commercial buildings and manufacturing plants 10 2 Installer s responsibilities It is the installer s responsibility to ensure
16. t only in a duct system with a maximum air velocity of 10 m s 2000 ft min or less Mounting must be performed so that the airflow is in line with probe openings 3 2 Installation Open cover of enclosure Unplug basic PCB from terminal blocks Fix bottom part by screws vertically to the wall terminal blocks to the ground Plug in the basic PCB at X4 and X5 Replace the cover 4 Electrical Connection 4 1 Instruction Consider static electricity See 3 Mounting Installation of the electrical wiring should only be performed by a trained specialist according to the connection diagram without any power applied to conductors and according to the corresponding regulations Avoid any influence of external interference by using a shielded cable Recommended cable Belden Twisted Shielded maximum resistance 73 Q km Cable for Relay Package AT 2R no recommendations When the PBC is mounted it is important to ensure that the wire shields or any bare wires do not short the PCB PolyGard is a registered trademark of MSR Phone 858 578 7887 amp 888 GO INTEC Fax 858 578 4633 amp 888 FX INTEC Specification subject to change without notice INTEC Wilson Mohr Inc 9730 Distribution Ave San Diego CA 92121 www inteccontrols com Printed in USA 090120 User Manual PolyGard O ier TEC CONTROLS 4 2 Wiring connection Open cover of enclosure Unplug basic PCB from terminal blocks X4 and X5 Enter cable through hol
17. that all PolyGard transmitters are installed in compliance with all national and local codes and OSHA requirements Installation should be implemented only by technicians familiar with proper installation techniques and with codes standards and proper safety procedures for control installations and the latest edition of the National Electrical Code ANSI NFPA70 It is also essential to follow strictly all instructions as provided in the user manual 10 3 Maintenance It is recommended to check the PolyGard transmitter regularly Due to regular maintenance any performance deviations may easily be corrected Re calibration and part replacement may be implemented in the field by a qualified technician and with the appropriate tools Alternatively the easily removable plug in transmitter card with the sensor may be returned for service to INTEC Wilson Mohr 10 4 Limited warranty MSR Electronic and INTEC Wilson Mohr warrants the PolyGard transmitters for a period of one 1 year from the date of shipment against defects in material or workmanship Should any evidence of defects in material or workmanship occur during the warranty period INTEC Wilson Mohr will repair or replace the product at their own discretion without charge This warranty does not apply to units that have been altered had attempted repair or been subject to abuse accidental or otherwise The warranty also does not apply to units in which the sensor element has been overexpos
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