3. Vario-Sense® CO
Contents
1. cc 5 4 Option Relay Output eesseesseesseeneeese eese nesnnesnnennernnees Inspection and Service sssssssunseunneunneunreunrnunnnunnnunnnnnnnnnnnnn GE dMapethones ie e ee ee 6 2 Service and Calibration c ccccceesceceeeeeeseeeeeseeeeeeeeees 6 3 Exchange of Sensor Element ccccceeeeseeeereeeees Troubleshooting 2 0 eeeeececeeeeeeeeeeeeeeeeenneeseeesneeseeesneeseeesnenseeennes 7 14 Analog Mode ee cece ceeeeeeeeeeeeeeeeeeaeeeeeeaaeeeeeeaeeeeeeaas 7 2 DGC 05 BUS Mode wu cecccccceccesececeeeesseceeeeeeeeeeseeaees Technical Data ccccsecccceeeeeceeeeeeeseeeseenseeeneeseeesneeseeeneenseesenes FIGUES eia iaieineea EETA ER Part Disposal s ssiissssrresassissnourinsnniassinnaaiannanudnrinnan isanne Notes and General Information c0ccccsscssessesssssssseeeseeeeees 11 1 Intended Product Application cceeseeeeeeees 11 2 Installers Responsibilities 2 0 00 eeeeeeeeeeeeeeeeees 11 3 MaInteN AN CO kerok seeur e Eea AERE KAE OKENE 11 4 Limited Waramy sessir ke e ERER PolyGard is a registered trademark of MSR Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 MSR Electronic GmbH W rdinger Str 27 D 94060 Pocking www msr electronic de GAADTD31192_E_1011 Specification subject to change without notice Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 Paes mse Infrared Dinitrogen Monoxide Laughing Gas Transmitter 1 Intended Use2. The PolyGard NO analog digital transmitter ADT D3 1192 with two beam infrared sensor digital processing of the measuring values and temperature compensation is used for the monitoring the ambient air and detecting dinitrogen monoxide laughing gas concentrations The intended sites are all areas being directly connected to the public low voltage supply e g residential commercial and industrial ranges as well as small enterprises according to EN50 082 The PolyGard NO analog digital transmitter must not be used in potentially explosive atmospheres The transmitter must only be employed in areas within the environmental conditions as specified in the Technical Data 2 Functional Description 2 1 Control Mode In addition to the analog output the transmitter is equipped with a serial interface RS 485 for the connection to the PolyGard DGC 05 system Analog mode The analog output can be selected as current signal with 0 4 20 mA or as voltage signal 0 2 10 V In the 4 20 mA mode and without any supplementary options the ADTD3 only works in the 3 wire technique DGC 05_ Bus mode The transmitter can be connected to the PolyGard DGC 05 system via the RS 485 interface In this mode there is an analog input for the connection of an additional 4 20 mA transmitter The two measuring values are transmitted via the RS 485 interface to the gas controller The cable topology for the RS 485 bus can be taken from the Guidelines for
3. Yellow LED not shining Power voltage not applied Measure tension at X4 Pin 1 and 2 PCB not plugged in correctly at X4 X5 Replug PCB correctly Check wiring Yellow LED not flashing No communication at the transmitter Transmitter not addressed check bus wiring incl topology and termination Voltage lt 16 V No control voltage for calibration Jumper V A not set Set jumper Remove it after calibration PolyGard is a registered trademark of MSR GAADTD31192_E_ 1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 pie 46 8 Technical Data General sensor performances Gas type Dinitrogen monoxide laughing gas NO Sensor element Two beam infrared NDIR Measuring range 0 2000 ppm standard Temperature range 10 C to 40 TC 14 F to 104 F Pressure range 800 1200 hPa Humidity 0 95 RH non condensing Storage temperature range 0 to 50 C 32 F to 122 F Storage time Max 6 months Mounting height 0 6 to 0 8 m 2 to 2 5 ft Stability amp resolution lt 4 of full scale Repeatability lt 4 of full scale Resolution 10 ppm Long term zero point drift lt 1 signal loss year Long term output signal drift lt
4. Electrical Code ANSI NFPA70 It is also essential to follow strictly all instructions as provided in the user manual 11 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 in the field may be implemented 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 MSR Electronic GmbH 11 4 Limited Warranty MSR Electronic GmbH 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 MSR Electronic GmbH 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 overexposed 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 GmbH 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 registe
5. Options Relay output Alarm relay 1 30 VAC DC 0 5 A potential free SPDT Alarm relay 2 30 VAC DC 0 5 A potential free SPNO SPNC Power consumption 30 mA max 0 8 VA Warning buzzer Acoustic pressure 85 dB distance 300 mm 1 ft Frequency 3 5 KHz Power consumption 30 mA max 0 8 VA LCD displa LCD Two lines 16 characters each not illuminated Power consumption 10 mA max 0 3 VA LCD indication Green yellow red Power supply Low Alarm High Alarm Power consumption 10 mA max 0 3 VA Heatin Temperature controlled 3 C 2 C 37 5 F 3 6 F Ambient temperature 40 C 40 F Power consumption 0 3A 7 5 VA Analog input 4 20 mA overload and short circuit proof Sulla Rese o node input resistance 200 Q Power supply for external transmitter 24 VDC max 50 mA PolyGard is a registered trademark of MSR GAADTD31192_E_1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 Page 12 9 Figures Application Analog mode Fig 1 Do
6. Then the sensor has to be replaced Calculation of Control Voltage Signal start 2 V 4 mA Control voltage mV _160 mV x test gas concentration NO ppm 40 mV measuring range N20 ppm Signal start 0 V 0 mA Control voltage mV _200 mV x test gas concentration NO ppm measuring range N2O ppm Example Measuring range 2000 ppm Test gas concentration 500 ppm Control voltage Signal start 2 V 4 mA 80 mV Control voltage Signal start 0 V 0 mA 50 mV Signal start 2 V 4 mA Signal start 0 V 0 mA 160 mV x 500 ppm 40 mV 80 mV 200 mV x 500 ppm 50 mV 2000 ppm 2000 ppm PolyGard is a registered trademark of MSR GAADTD31192_E_1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 Beet 5 3 Addressing only for DGC 05_Bus mode In the DGC 05_Bus mode each transmitter gets its communication address In the standard version with the communication connector X12 addressing is done by means of the DGC 05 Service Tool or by the DGC 05 Configuration and Calibration Software See user manual of the Service Tool or of the Configuration and Calibration Software In the manual addressing version which can be identified by the address switch being equipped there is a maximum of 60 addresses to be se
7. not connect power supply at this pin OVDC 24 VAC or 0 VAC will destroy the transmitter 7 Bus_B Option Controller 6 Bus_A Relay 5 4 20 mA_Inp Ri 1 4 20 mA gt 4 Analog_Out La 24 VDC 3 24 VDC 3 0 voo 2 0 VDC 4 124 VDC Se 5 X4 _ Re a 5 Transmitter ADTX3 Short circuit at 24 VAC at pin 2 und pin 4 or 24 VDC at pin 2 and 0 VDC at pin 4 Le R10 burns up Analog_O 0 VAC DC 24 VAC DC Transmitter Application DGC 05_Bus mode or ModBus mode ADTX3 Fig 2 7 Bus_B Option An Bus B Option z alog 6 Bus_A Relay Transmitter Bus_A Relay 5 14 20 mA_Inp Ri 1 4 20 mA 4 20 mA_Inp Ri 1 4 Analog Out H2 0 VDC Analog Out H2 3 124 VDC_Out 3 24 VDC 24 VDC_Out 3 2 10 VDC rt 0 VDC 4 1 24 VDC Ny 5 24 VDC N 5 X4 _ R2 a XS _ R2 ay X5 Transmitter Transmitter ADTX3 ADTX3 83 4 gt gt 55 o mma N Connection field bus and tension Connection analog transmitter Two or three wire connection depending on transmitter type PolyGard is a registered trademark of MSR GAADTD31192_E_1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 Page 13 PCB SM03 Fig 3 N or gt amp 99 _ o o u I L5 Option 5 al E Manual 3 SHE c3 Addressing 5 LEJ LL Sensor Savety rope g Co
8. signal at the test pins during calibration 6 3 Exchange of Sensor Element The sensor is always replaced together with the cover Consider static electricity See point 3 e Unplug basic PCB SMO3 carefully from the bottom part e Unplug the 4 pin plug from the IR sensor e Loosen the safety rope at the cover e Exchange the cover sensor unit e Fasten the safety rope at the cover e Re plug the 4 pin plug at the sensor See fig 3 for the position e Re plug the PCB MSO3 into the terminal blocks X4 X5 carefully PolyGard is a registered trademark of MSR GAADTD31192_E_ 1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 Page 6 7 Troubleshooting 7 1 Analog Mode Output signal lt 3 mA 1 5 V Jumper 0 20 not set Check jumper position and or control voltage lt 30 mV Measure tension at X4 only for starting signal 2V 4 mA Power voltage not applied Two wire Pin 1 and 4 Three wire Pin 1 and 2 PCB AT03 not plugged in correctly at X4 Replug PCB correctly and X5 Check he wi Output signal gt 22 mA 220 mV Check the wiring No reaction of the output signal Power voltage not applied Measure tension at X4 in spite of gas concentration Signal Pin 4 not wired correctly Check the wiring 7 2 DGC 05 Bus Mode
9. with care Replace the cover Note The connection of the power supply at the output signal X4 pin 4 can destroy the transmitter 5 Commissioning Consider commissioning instructions at any exchange of the sensor element as well Only trained technicians should perform the following The filter at the gas inlet is part of the IP65 protection and must not be removed e Check mounting location e Select output signal form Current or voltage and starting point 0 or 20 See fig 3 and 4 e Check power voltage e Check PCB SMO03 for correct mounting at X4 and X5 e Addressing of the transmitter in the DGC 05_Bus mode e The transmitter is already factory calibrated for 4 years Therefore calibration is not required at commissioning Required instruments for calibration of the transmitter e Test gas bottle with nitrogen for zero point calibration e Test gas bottle with N20 in the range of 30 70 of the measuring range Rest is synthetic air e Gas pressure regulator with flow meter to control the gas flow to 1500 ml min e Calibration adapter Calibration set 4 See fig 5 e Digital voltmeter with range 0 300mV accuracy 1 e Asmall screwdriver Note The sensor is ready for use after a running in period of 1 minute During that period the zero point signal is transmitted Please observe proper handling procedures for test gas bottles regulations TRGS 220 5 1 Correction of the zero point at the analog output signal The anal
10. 2 signal loss year Expected lifetime gt 10 years normal operating conditions Recommended calibration interval gt 4 years Electrical Power supply 18 28 VDC AC reverse polarity protected Power consumption without options 45 mA max 1 1 VA Output signal Analog output signal 0 4 20 mA load lt 500 Q Selectable Current tension 0 2 10 V load 2 50k Q Starting point 0 20 proportional overload and short circuit proof Serial interface Transceiver RS 485 19200 Baud 9600 ModBus Protocol depending on version MSR_DGCO05 or ModBus Physical Enclosure Polycarbonate Flammability UI 94 V2 Enclosure colour RAL 7032 light gray Dimensions W x H x D 94 x 130 x 57 mm Weight 0 5 kg 1 Ibs Protection class IP 65 Mounting Wall mounting Cable entry Standard 1 x M 20 Wire connection Screw type terminal 0 25 to 2 5 mm 24 to 14 AWG a8 Current signal ca 500 m 1500 ft Wile distance Voltage signal ca 200 m 600 ft Guidelines EMC Directive 2004 108 EEC CE Approvals Enclosure Type A UL 508A Warranty 1 year on material without sensor PolyGard is a registered trademark of MSR GAADTD31192_E_ 1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 ae
11. PolyGard ADTD3 1192 Infrared Dinitrogen Monoxide Laughing Gas Transmitter Serial No AT03 00X User Manual October 2011 PolyGard is a registered trademark of MSR Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de GAADTD31192_E_1011 Specification subject to change without notice Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 10 11 Intended USC sae cccecrselv cease eee ete wdewceencds eve setceedenaedeteeeedde Functional Description eeccsseseeeesseeeeeeeseeneeenseeeenenseeenes QA SGONMOlLMOG Gas a heb ee a a a tae Meds ee 22 I SONSOR aet eenaa e e a erete aner anada ley aae feed tie ARACIL LI o 9 MEE EEEE EE EEE 3 1 Mounting Instructions sesssseseesseesserrsssrnesrrnnsrnnssrns 32 Astala iON serrer AEAEE EEEE TEEI i Electrical Connection c cscscecececeeeeeeeeeensnenensnenenenenensnenenss 4 1 Wiring Connection essseeseeeeesiesrresriesriesrresrresrresrne COMMISSIONING 2sceseeeeeeeeeeeeeeeeeeeseseeeenseeeeeseenseaeseneeeeseeeneas 5 1 Correction of the zero point at the analog output signal 52 Calibration eee ee e enan en eE cadence cdevadzecgevance SNEER Bai LeropoM aerei eae ER heads ey e AEREE EAE SEREEN NERES EAE E T E EAT E AE AE TEE AE E 5 2 3 Calculation of Control Voltage sseeeseeeeeeeseeeeeeeenen 5 3 Addressing only for DGC 05_Bus mode
12. any User Manual PolyGard N O Transmitter ADTD3 1192 er 6 Inspection and Service Inspection service and calibration of the transmitters should be done by trained technicians and executed at regular intervals We therefore recommend concluding a service contract with MSR or one of their authorized partners According to EN 45544 4 inspection and service has to be executed at regular intervals The maximum intervals have to be determined by the person responsible for the gas warning system according to the legal requirements MSR E recommends checking the PolyGard Transmitter every three months and maintaining it every 48 months If different intervals are indicated always consider the shortest interval Inspections and services must be documented The date for the next maintenance has to be affixed to the transmitter 6 1 Inspection The PolyGard Transmitter should be controlled regularly by a competent person according to EN 45544 4 The following has to be checked in particular e Maintenance calibration interval not exceeded e Visual inspection of the transmitter including cable for damage etc Remove dust deposits especially at the gas inlet The filter at the gas inlet has to be replaced if extremely dirty 6 2 Service and Calibration When performing the maintenance you have to do the calibration and the functional test in addition to the inspection e Calibration See section 5 e Functional test Check the output
13. e 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 Page 15 11 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 on going product development MSR 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 this data 11 1 Intended Product Application The PolyGard transmitters are designed and manufactured for control applications and air quality compliance in commercial buildings and manufacturing plants 11 2 Installers Responsibilities It is the installer s responsibility to ensure 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
14. lected See fig 3 The jumper is responsible to define the address group and the switch to define the address according to the following table Switch Jumper pos 01 Jumper pos 02 Jumper pos 03 Jumper pos 04 postion address address address address inactive inactive inactive inactive nmoowblooNnNo on 8 Po eso 5 4 Option Relay Output The two relays are activated in dependence of the gas concentration If the gas concentration exceeds the adjusted alarm threshold the corresponding relay switches on If the gas concentration falls below the threshold minus hysteresis the relay switches off again The contact function for relay 2 NC normally closed or NO normally open can be selected via the jumper NO NC See fig 1 and 3 Relay 1 is equipped with a change over contact Via the ModBus interface the two alarm thresholds and the hysteresis are freely adjustable at the PC within the measuring range The procedure can be read from the user manual ModBus Software The following parameters are factory set Alarm threshold 1 Relay 1 500 ppm Alarm threshold 2 Relay 2 1000 ppm Switching hysteresis 50 ppm PolyGard is a registered trademark of MSR GAADTD31192_E_ 1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germ
15. n adapter with the elastic band at the cover See fig 5 The calibration adapter must hermetically seal the cover Connect digital voltmeter at test pin test Apply nitrogen 1500 ml min 1 Bar 14 5 psi 10 to the sensor Wait 3 minutes until the signal is stable push button Zero for 8 seconds After successful calibration the measuring signal is corrected automatically Depending on the selected signal starting point the measuring signal shows the following values Signal start at 2 V or 4 mA 40 mV 0 ppm Signal start at 0 V or 0 mA OmV 0 ppm If the zero point is out of the admissible range gt 20 mV at starting point 0 gt 60 mV at starting point 20 before calibration there is no correction of the measuring signal The sensor has to be replaced Gain Open cover of transmitter fasten the calibration adapter with the elastic band at the cover See fig 5 The calibration adapter must hermetically seal the cover Connect digital voltmeter at test pin test Apply calibration test gas N2O 1500 ml min 1 Bar 14 5 psi 10 Wait 3 minutes until the signal is stable adjust control voltage with potentiometer Gain until the signal corresponds to the calculated value 3 mV see calculation section 5 2 3 Remove calibration adapter and close the cover By limiting the gain factor calibration will not be possible any more when the sensitivity of the sensor reaches a residual sensitivity of 30
16. nnetion cable Option Heating eoeoeee e Ce a C 6o 0o Anal Output Sensor Anal Output V DC Connection Start Point mA Cable E V DC mA Terminal block GvVec t Selection analog output signal Fig 4 Not set Not set Set Not set Not set Set Set Set PolyGard is a registered trademark of MSR GAADTD31192_E_ 1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 Page 14 Calibration adapter Fig 5 Flow 1500ml min Pressure 1 Bar Gasket 10 Part Disposal Since August 2005 there are EC wide directives defined in the EC Directive 2002 96 EC and in national codes concerning the waste electrical and electronic equipment and also regarding this device For private households there are special collecting and recycling possibilities For this device isn t registered for the use in private households it mustn t be disposed this way You can send it back to your national sales organisation for disposal If there are any questions concerning disposal please contact your national sales organisation Outside the EC you have to consider the corresponding directives PolyGard is a registered trademark of MSR GAADTD31192_E_ 1011 Phon
17. og output signal is factory set to the zero point If necessary a manual adaptation of the analog signal is possible within 10 sec after having applied the supply voltage e Jumper 0 20 for signal start has to be set 4 mA or 2 V e Connect digital voltmeter 300 mV at test pint Test measuring signal 40 mV 4 0 mA e Switch on the operating voltage e Each pressing on the Zero push button increases the signal by 0 5 mV 0 05 mA Press the button repeatedly until the measuring signal reaches 40 0 2 mV When reaching 44mV the signal starts again at 36 mV The correction is only possible within the 10 seconds after having switched on the power supply An impulse pause of more than 10 sec cancels the release of the correction function PolyGard is a registered trademark of MSR GAADTD31192_E_ 1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany ADTD3 1192 User Manual PolyGard N O Transmitter mst Page 6 5 2 Calibration Manual calibration is possible both in analog mode and in DGC 05_Bus mode In the DGC 05_Bus mode the jumper V A has to be set before manual calibration Only by doing so the control voltage is available at the test pins X6 Remove the jumper after calibration 5 2 1 5 2 2 5 2 3 Zero point Open cover of transmitter fasten the calibratio
18. pay attention to the following e The specific weight of dinitrogen monoxide laughing gas N20 is higher than that of air factor 1 529 Recommended mounting height is 0 6 m 2 feet to 0 8 m 2 5 feet above floor e Choose mounting location of the sensor according to the local regulations e Consider the ventilation conditions Do not mount the transmitter in the centre of the airflow air passages suction holes e Mount the transmitter at a location with minimum vibration and minimum variation in temperature avoid direct sunlight e Avoid locations where water oil etc may influence proper operation and where mechanical damage might be possible e Provide adequate space around the sensor for maintenance and calibration work Duct mounting e Mount only in a straight section of duct with minimum air vortex Keep a minimum distance of 1 m 3 5 feet from any curve or obstacle e Mount only in a duct system with a maximum air velocity of 10 m s 2000 ft min or less e Mounting must be performed so that the probe openings are in line with the airflow 3 2 Installation e Open the cover The cover incl the sensor is connected by a safety rope with the lower part of the housing e Fix the housing to the wall through the holes at the corners using the enclosed screws wall anchors sensor down e Replace the cover 4 Electrical Connection Consider static electricity See 3 Mounting e Installation of the electrical wiring
19. red trademark of MSR GAADTD31192_E_ 1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany
20. should only be executed by a trained specialist according to the connection diagram without any power applied to conductors and according to the corresponding regulations e Avoid any influence of external interference by using shielded cables for the signal line but do not connect the shield e Recommended cable for analog mode J Y St Y 2x2x0 8 LG 20 AWG max loop resistance 73 Q km 20 8 0 1000 ft e Serial Interface Mode Required cable for RS 485 mode J Y St Y 2x2x0 8 LG 20 AWG max loop resistance 73 Q km 20 8 9 1000 ft When selecting and installing the cables you have to comply with the regulations concerning the RS 485 bus installation The installations have to be executed in line topology Cable length and type have to be considered as well e Itis important to ensure that the wire shields or any bare wires do not short the mounted PCB PolyGard is a registered trademark of MSR GAADTD31192_E_ 1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 Padu mse 4 1 Wiring Connection e Open the cover Unplug basic PCB carefully from terminal blocks X4 and X5 Pay attention to the cable to the sensor e Insert the cable and connect cable leads to terminal blocks See fig 1 and 2 e Replug the PCB in the terminal blocks X4 X5
21. wiring and commissioning of the DGC 05 hardware The two control modes are available in parallel 2 2 Sensor The integrated sensor is based on the principle of the infrared absorption of gases and accomplishes highest requirements concerning accuracy reliability and economy The sensor technology uses the individual absorption spectrum of the dinitrogen monoxide gas laughing gas and appoints its exact concentration through its accurate quantitative analysis The infrared principle nearly eliminates the cross sensitivity to other gases An integrated evaluation electronic system reliably compensates all drift and temperature influences and therefore a genuine measurement result is guaranteed The sensor is factory calibrated for a period of 4 years PolyGard is a registered trademark of MSR GAADTD31192_E_ 1011 Phone 0049 0 8531 9004 0 Fax 0049 0 8531 9004 54 Specification subject to change without notice MSR Electronic GmbH Wiirdinger Str 27 D 94060 Pocking www msr electronic de Printed in Germany User Manual PolyGard N O Transmitter ADTD3 1192 ee ise 3 Installation Note Avoid any force e g by thumb on the sensor element during operation or installation Electronics can be destroyed by static electricity Therefore do not touch the equipment without a wrist strap connected to ground or without standing on a conductive floor acc to DIN EN100015 3 1 Mounting Instructions When choosing the mounting site please
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