User Manual
Contents
1. resistance 200 Q Power supply for external transmitter 24 VDC max 50 mA User Manual HS Transmitter Page 14 10 Figures Application Analog mode Fig 1 7 Bus_B 7 Bus P Option Controller 6 Bue A Controller 6 Bus_A Relay 5 4 20 mA_Inp 1 5 4 20mA_Inp py 1 4 20 mA 4 Analog_Out 2 4 20 mA 4 Analog Out 2 24V 3 124 VDC_Out 3 24 V 3 24 VDC_Out 3 OV 2 0V 4 0 deeg 20v 4 1 24 VAC DC 5 1 24 VAC DC Rz 5 X4 X5 X4 Ei old X5 Transmitter Transmitter ADTX3 ADTX3 Two wire connection Three wire connection 4 20 mA output signal without VDC output signal options 0 20 mA output signal Relay output LCD display Heating Application GCD 05_Bus mode Fig 2 Bus B Option 7 Bus B Option A Relay Analog Relay 6 Bus_A Transmitter 6 Bus_A 5 14 20 mA_Inp R1 1 4 20 mA 5 4 20 mA_Inp R1 i 1 4 Analog Out 2 OVDC t 4 Analog_Out 2 3 24 VDC_Out 3 24 VDC 3 24 VDC_Out 3 2 0 VDC 4 Pan VDC 4 1 124 VDC Siwe 1 24 VDC wescht x4 R2 00 X5 X4 Ri bo X5 Transmitter Transmitter u ADTX3 ADTX3 a S E Connection fiel2. User Manual HS Transmitter Page 5 5 Commissioning Consider commissioning instructions at any exchange of the sensor element as well Only trained technicians should perform the following e Check mounting location e Select output signal form Current or voltage and starting point 0 or 20 See fig 4 e Check power voltage e Check PCB ATO3 for correct mounting at X4 and X5 e Check the sensor for proper mounting at the connectors X7 of the PCB ATO3 e Addressing of the transmitter in the GCD 05 Bus mode e Calibrate the transmitter if not already factory calibrated e Required instruments for commissioning calibration of the transmitter e Test gas bottle with synthetic air of H2S free ambient air e Test gas bottle with H2S ppm in the range of 30 80 of the measuring range e Gas pressure regulator with flow meter to control the gas flow to 150 ml min e Calibration adapter with tube Calibration set See fig 5 e Digital voltmeter with range 0 300 mV accuracy 1 e Small screwdriver e Calibration tool GCD 05 STL only for calibration with service tool GCD 05 e Configuration and calibration software GCDO5EasyConf incl USB RS 485 communication set only for software calibration mode Note Prior to calibration the sensor must be connected to the power supply and fully stabilised for at least 6 hours without interruption Please observe proper handling procedures for test gas bottles regulati
3. 11 2 Installers Responsibilities It is the installers responsibility to ensure that all 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 11 3 Maintenance It is recommended to check the 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 AP 11 4 Limited Warranty AP warrants the 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 AP 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 overex
4. 5 35 x 4 5 x 1 8 in Weight Approx 0 5 kg 1 1 Ibs Protection class IP 55 Mounting Wall mounting pillar mounting Cable entry Standard 1 x M 20 Screw type terminal min 0 25 to 2 5 mm Wire connection 24 to 14 AWG Current signal ca 500 m 1500 ft Voltage signal ca 200 m 600 ft Wire distance 1 The table doesn t claim to be complete Other gases too can have an influence on the sensitivity The mentioned cross sensitivity data are only reference values valid for new sensors Indications only for option stainless steel for further types see datasheet Enclosure User Manual HS Transmitter Page 13 Guidelines EMC Directive 2004 108 EWG CE Warranty 1 year on material without sensor Options Relay output Alarm relay 1 switching threshold 5 ppm 30 VAC DC 0 5 A potential free SPDT Alarm relay 2 switching threshold 8 ppm 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 Heatin Temperature controlled 3 C 2 C 37 5 F 35 5 F Ambient temperature 30 C Power supply 18 28 VDC AC Power consumption 0 3A 7 5 VA Analog input Only for RS 485 mode 4 20 mA overload and short circuit proof input
5. 1 and 4 Three wire Pin 1 and 2 PCB ATO03 not plugged in correctly at X4 Replug PCB correctly and X5 Check the wing Output signal gt 22 mA 220 mV Check the wiring Control voltage does not reach Sensor element not calibrated Calibrate sensor element the calculated value Replace sensor element 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 User Manual HS Transmitter Page 11 7 2 GCD 05 Bus Mode 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 at calibration Jumper V A not set Set the jumper Remove it after calibration 8 Cross sensitivity Data The cross sensitivity can be read from the table Technical Data The table doesn t claim to be complete Other gases can have an influence on the sensitivity too The indicated sensitivity data are only standard values referring to new sensor elements User Manual HS Transmitter Page 12 9 Technical Data General sensor performances Gas type Hydrogen sulphide H2S Sensor element Electr
6. 0 In this case the sensor has to be replaced Further information can be taken from the user manual of the GCD 05 Service Tool 5 4 Calibration with DGC 05 Configuration and Calibration Software DGCO5EasyConf Connect the PC via USB RS 485 communication set to the transmitter open menu Calibration Enter measuring range and test gas concentration Connect calibration adapter carefully to the sensor element Apply synthetic air 150 ml min 1 Bar 14 5 psi 10 or H2S free ambient air Wait until the measuring value is stable and then perform automatic zero calibration Apply calibration test gas H2S 150 ml min 1 Bar 14 5 psi 10 Wait until the measuring value is stable and then perform automatic gain calibration Remove calibration adapter carefully by turning lightly Check the sensor for correct mounting By limiting the gain factor calibration will not be possible any more when the sensitivity of the sensor reaches a residual sensitivity of 30 In this case the sensor has to be replaced Further information can be taken from the user manual of the DGC 05 Configuration and Calibration Software User Manual HS Transmitter Page 8 5 5 Addressing only for GCD 05_ Bus mode In the GCD 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 GCD 05 Service Tool or by the GCD 05 Configuration and Cal
7. H2S Electrochemical Hydrogen Sulphide Transmitter User Manual November 2008 User Manual H2S Transmitter Page 2 1 tended RTE 3 2 Functional Description eeneg 3 21 Control Mode ee ine elle iii erh 3 ET 3 3 Installations rt et Sr er a rR EE a oe RPS eo en eee 4 3 1 Mounting INStruCtions EE 4 3 2 Installation TEE 4 d Electrical Connection 2 ue ee EES 4 4 1 Wiring Conpechon AA AaaA AAAA aaaa aeaa aana anaa 4 5 COMMISSIONING E 5 5 1 Calibration eee 5 5 2 Manual Calibration ecccccccccccceeeeeeeenee cece ee eeeeccaaeeeee sees seceaaaeceeeeeeeesegeaaaeaeeeeeeeseescnaeeeeeeseneesaees 6 en E ee 6 52 2 Galli ee eset eee a ee A ee ee 6 5 2 3 Calculation of Control Voltage eee cece ee eeeeeeeeeeeeeeeeeeeeeeeeeeeeaeeeseeeaeeeseeeeaeeeteenaeeeseeaees 6 5 3 Calibration with GCD 05 Service Tool 7 5 4 Calibration with GCD 05 Configuration and Calibration Software GCD05EasyCorf 7 5 5 Addressing only for GCD 05_Bus mode nenn nnnn nenn 8 5 6 Option Relay Output 8 6 Inspection and Service unsunnannsnannnnnnnnnnnnnnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnannnnnnnnnnnnnnnnannnnnnnnnnnnnnnannnnnnnnnn nenn 10 GN Le E 10 6 2 Cali Patho EE 10 6 3 Exchange of Sensor Element csi25 seessedceczvari ceases ahnen nenne 10 7 Troubleshooting E 10 e NEE e dE 10 1 2 GCD O5 BUS Meier esu esoe dees dee eege aha E E AREE EAE 11 8 7EIOSS SENSIHVIEy RT E 11 9 Technical Data sc sons cance Sac
8. culation of Control Voltage Signal start 2 V 4 mA Control voltage mV 160 mV x test gas concentration H2S ppm 40 mV measuring range H2S ppm Signal start 0 V 0 mA Control voltage mV 200 mV x test gas concentration H2S ppm measuring range H2S ppm Example Measuring range 100 ppm Test gas concentration 55 ppm H2S Control voltage Signal start 2 V 4 mA 128 mV Control voltage Signal start 0 V 0 mA 110 mV Signal start 2 V 4 mA Signal start 0 V 0 mA 160 mV x 55 ppm 40 mV 128 mV 200 mV x 55 ppm 110 mV 100 ppm 100 ppm User Manual HS Transmitter 5 3 Page 7 Calibration with GCD 05 Service Tool Connect the GCD 05 Service Tool to the transmitter open menu Calibration Enter measuring range and test gas concentration Connect calibration adapter carefully to the sensor element Apply synthetic air 150 ml min 1 Bar 14 5 psi 10 or hydrogen sulphide H2S free ambient air Wait until the measuring value is stable and then perform automatic zero calibration Apply calibration test gas H2S 150 ml min 1 Bar 14 5 psi 10 Wait until the measuring value is stable and then perform automatic gain calibration Remove calibration adapter carefully by turning lightly Check the sensor for correct mounting By limiting the gain factor calibration will not be possible any more when the sensitivity of the sensor reaches a residual sensitivity of 3
9. d bus and tension Connection analog transmitter gt gt 55 Two or three wire connection ai o mm depending on transmitter type User Manual HS Transmitter PCB ATO3 Fig 3 Option Manual Position Addressing 4321 Anal Output Start Point EE 20 Option e e Manual Calibration NO NC NO NC gt amp o ka E 2 15 e 5 LU N U A OD DN ee a A e a A OU N Anal Output EE V DC DI mA Selection analog output signal Fig 4 Not set Not set Set Not set Not set Set Set Set Calibration adapter Fig 5 Type Calibr set Page 15 Terminal block X5 User Manual HS Transmitter Page 16 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 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 AP 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 H2S transmitters are designed and manufactured for control applications and air quality compliance in commercial buildings and manufacturing plants
10. er Manual HS Transmitter Page 9 User Manual HS Transmitter Page 10 6 Inspection and Service 6 1 Inspections 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 AP or one of their authorized partners 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 6 months e After exchange of the sensor e If in case of operational or climatic influences the sensitivity of the sensor falls below 30 in operation calibration will not be possible any more In this case the sensor has to be changed 6 3 Exchange of Sensor Element Consider static electricity See point 3 Sensor should always be installed without power applied e Unplug basic PCB ATO3 carefully from the bottom part e Unplug old sensor element from the PCB e Take the new sensor out of the original packing e Plug the sensor element in the PCB at X7 e Replug the PCB ATO3 in the terminal blocks X4 X5 carefully e Calibrate according to section 5 7 Troubleshooting 7 1 Analog Mode Trouble Cause Solution 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 Bower voltage not applied Two wire Pin
11. ese Luna nee aan AAAA AREA RAAEN AAE RARES 12 10 elei 14 11 Notes and General Information 0u44220040000nnn0nnnnnannnnnnnnnannnnnannnnnnnnnnannnnnannnnnnnnnnnnnnnnnnnnnnnn 16 11 1 Intended Product Application A 16 11 2 Installers Responsibilities u aa ia 16 11 3 Maintenance unit ea an en Ka a an ae Rache 16 11 4 Limited Wananiy roesini Ran ara 16 User Manual HS Transmitter Page 3 Electrochemical Hydrogen Sulphide Transmitter 1 Intended Use The H2S analog gas transmitter with digital processing of the measuring values and temperature compensation is used for the continuous monitoring of the ambient air to detect the presence of hydrogen sulphide gas Main application ranges are waterworks and wastewater treatment systems 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 transmitter must only be used within environmental conditions specified in the Technical Data The H S analog transmitter must not be used in potentially explosive atmospheres 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 GCD 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 wit
12. hout any supplementary options the H2S also works in the 2 wire technique GCD 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 wiring and commissioning of the GCD 05 hardware The two control modes are available in parallel 2 2 Sensor The sensor portion of the transmitter is a sealed electro chemical cell with three electrodes sensing counter and reference The ambient air to be monitored diffuses through a membrane filter into the liquid electrolyte of the sensor The chemical process of the measurement is one of reduction where one molecule of the target gas is exchanged for one molecule of oxygen The reaction drives the oxygen molecule to the counter electrode generating a DC microampere signal between the sensing and reference electrodes This signal is linear to the volume concentration of the sensed gas The signal is evaluated by the connected amplifier and transformed into a linear output signal Electrochemical processes always lead by and by to a loss of sensitivity Therefore regular calibration of zero point and gain is obligatory See also section 6 Caution There is a small quantity of corrosive l
13. ibration 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 selected 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 posten address address address address inactive inactive inactive inactive n mololw gt oO a N oo RW mN o 5 6 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 10 ppm Alarm threshold 2 Relay 2 20 ppm Switching hysteresis 2 ppm Us
14. int e Connect calibration adapter carefully to the sensor element e Apply synthetic air 150 ml min 1 Bar 14 5 psi 10 or hydrogen sulphide H S free ambient air e Wait 2 minutes until the signal is stable push button Zero for 5 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 e Remove calibration adapter carefully by turning lightly Check the sensor for correct mounting 5 2 2 Gain e Connect calibration adapter carefully to the sensor element e Apply calibration test gas H2S 150 ml min 1 Bar 14 5 psi 10 e Wait two minutes until the signal is stable adjust control voltage with potentiometer Gan until the signal corresponds to the calculated value 2 mV see Calculation of Control Voltage e Remove calibration adapter with a careful light turn Check the sensor for correct mounting By limiting the gain factor calibration will not be possible any more when the sensitivity of the sensor reaches a residual sensitivity of 30 Then the sensor has to be replaced 5 2 3 Cal
15. iquid in the sensor element If in case of damage persons or objects touch the liquid you have to clean the affected areas as fast and carefully as possible with tap water Out of use sensors must be disposed in the same way as batteries User Manual HS Transmitter Page 4 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 pay attention to the following e The specific weight of hydrogen sulphide H2S is marginally higher than that of air factor 1 19 Recommended mounting height is 0 2 m 0 6 ft to 0 3 m 1 ft 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 vo
16. ochemical diffusion Measuring range standard other ranges 0 100 ppm or 0 200 factory set according to the data sheet others on request Temperature range 10 C to 50 C 14 F to 122 F Pressure range Atmosphere 15 Humidity 15 95 RH non condensing Storage temperature range 5 C to 30 C 41 F to 86 F Storage time Max 6 months Mounting height 0 2 to 0 3 m 0 6 to 1 ft Stability amp resolution 0 2 ppm Repeatability 2 of reading Long term output drift lt 2 signal loss year Response time too lt 60 sec Life expectancy gt 2 years normal operating environment Cross sensitivity Concentration ppm Reaction ppm H2S Carbon monoxide CO 100 lt 2 Sulphur dioxide SO 100 20 Nitrogen dioxide NO 5 1 0 Nitric oxide NO 35 lt 2 Hydrogen H2 300 20 Electrical PoWwers npl 18 28 VDC AC reverse polarity protected H 2 wire mode only VDC Power consumption without options Analog mode 22 mA max 0 6 VA DGC 05 Bus mode 12 mA max 0 3 VA Output signal Analog output signal 0 4 20 mA load lt 500 9 Selectable Current tension 0 2 10 V load 2 50 k Q Starting point 0 20 proportional overload and short circuit proof Serial interface Transceiver RS 485 19200 Baud 9600 ModBus Protocol depending on version GCD 05 or ModBus Physical Enclosure Stainless steel V2A Enclosure colour Natural brushed Dimensions H x W x D 113 x 135 x 45 mm
17. ons TRGS 220 H2S calibration gas is toxic never inhale the gas Symptoms Dizziness headache and nausea Procedure if exposed Take the victim into fresh air at once call a doctor 5 1 Calibration Depending on the version and the control mode there are three different possibilities to calibrate the transmitter Manual calibration Manual calibration is only possible if the transmitter is equipped with the push button Zero and the potentiometer Gain version for manual calibration Manual calibration is possible both in analog mode and in GCD 05_Bus mode In the GCD 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 Calibration with the Service Tool GCD 05 In the standard version equipped with the communication connector X12 the transmitter is delivered for tool and or software calibration In the analog mode the service tool calibration is only possible with the 3 wire technique of the transmitter In the GCD 05_ Bus mode calibration is always possible User Manual HS Transmitter Page 6 Software calibration via PC In the standard version equipped with the communication connector X12 calibration can also be done by means of the configuration and calibration software GCDO5EasyConf Software calibration is possible for both control modes 5 2 Manual Calibration 5 2 1 Zero po
18. posed or gas poisoned The above warranty is in lieu of all other express warranties obligations or liabilities This warranty applies only to the AP transmitter AP shall not be liable for any incidental or consequential damages arising out of or related to the use of the transmitters
19. rtex 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 Unplug basic PCB carefully from the bottom part e Fix bottom part by screws vertically to the wall terminal blocks to the ground e Replug the basic PCB at X4 and X5 with care Replace the cover 4 Electrical Connection Consider static electricity See 3 Mounting e Installation of the electrical wiring 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 resistance 73 Q km 20 8 0 1000 ft e Required cable for RS 485 mode J Y St Y 2x2x0 8 LG 20 AWG max res 73 Q km 20 8 0 1000 ft e It is important to ensure that the wire shields or any bare wires do not short the mounted PCB 4 1 Wiring Connection e Open the cover Unplug basic PCB carefully from terminal blocks X4 and X5 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 with care Replace the cover
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