User Manual - H - Automatikprodukter
Contents
1. 30 mA max 0 8 VA Acoustic pressure Frequency Power consumption LCD display L Power consumption LED indicator Green yellow red Power supply Low Alarm High Alarm 10 mA max 0 3 VA O U Two lines 16 characters each not illuminated 10 mA max 0 3 VA 14 tomatikprod ukter GLID User Manual H S Detector Nov 12 Heating Temperature controlled 3 C 2 C 37 5 F 3 6 F Ambient temperature 40 C 40 F Power consumption 0 3 A 7 5 VA Analog input Only for RS 485 mode 4 20 mA overload and short circuit proof input resistance 200 Q Voltage for external analog transmitter 24 VAC DC depending on the power supply max load 50 mA 15 utomatikprodukter ae GED User Manual H S Detector Nov 12 10 Figures Application Analog mode Fig 1 Do not connect power supply at this pin 0 VDC 24 VAC or OVAC will destroy the transmitter 7 Bus B 7 Bus B Option Controller 6 Bus A Controller 6 Bus A Relay 5 14 20 mA Inp 1 NO 5 4 20mA_Inp py 1 NO 4 20 mA lt2. 6 1 Inspection The detector 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 e Remove dust deposits especially at the gas inlet e 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 inspec tion e Calibration See section 5 e Functional test Check the output signal at the test pins during calibration 10 utomatikprodukter GED User Manual H S Detector Nov 12 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 Cause Solution o Jumper 0 20 not set Check jumper position Measure tension at X4 Power voltage not applied Two wire Pin 1 and 4 Output signal lt 3 mA 1 5 V Three wire Pin 1 and 2 PCB ATO3 not plugged in correctly at X4 a
3. The chemical process of the measurement is one of reduction where one molecule of the target gas is ex changed 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 concen tration 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 2 tomatikprod ukter GED User Manual H S Detector Nov 12 and gain is obligatory See also section 6 Caution There is a small quantity of corrosive liquid 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 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 e When choosing the mounting site please pay attention to the following e The specific weight of hydrogen sulphide H S is marginally higher than tha
4. 4 Analog Out 2 NC 4 20 mA 4 Analog Out 2 INC 24 V 3 24 VDC Out 3 COM 24 V 3 24 V Out 3 COM OV 20V 4 NO ov OV 4 NO 1 24 VDC 5 com 1 24 VACIDC XN s2 5 com X4 Detector X5 X4 EE 0 X5 H S HS 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 Le Do not connect 24 VAC at pin 2 and pin 4 or 24 VDC at pin 2 and 0 VDC at pin 4 Short circuit R 10 Ohm burns up I 5 10 Analog_Ou 4 ED 0 VAC DC 2 24 VAC IDC gt 1 P gt Q ene z X4 Application GCD 05_Bus or ModBus Detector mode HS Fig 2 7 Bus B Option Analog Detector 6 Bus Relay 7 Bus B Option 4 20 mA gt 5 4 20 mA Inp RI 1 NO SEA Relay O VDC 4 Analog_Out LL nc 5 14 20 mA_Inp Ri 1 no 24 VDC 3 24 VDC Out 3 COM 4 Analog Out t 2 NC 2 0 VDC 4 NO 3 24 VDC Out 3 com 24VDC Rote 2 COM 2 0 VDC 4 NO Detector 1 124 VDC 22 5 COM HS X4 R2 40 X5 Detector HS Connection analog transmitter Two or three wire connection QQ lt m Connection field bus and tension depending on transmitter type AA gla gt gt 55 o M N 16 utomatikprodukter GID User Manual HS Detector Nov 12 PCB ATO3 Fig 3 Option Manual Addressing J B Option Manual Calibration N nd gt fy 0 a jo 5 LL yw Ba ODN 00900000 RON A
5. ATO3 for correct mounting at X4 and X5 4 eee A tomatikprodukter as GED User Manual H S Detector Nov 12 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 detector if not already factory calibrated Required instruments for commissioning calibration of the transmitter e Test gas bottle with synthetic air 20 O 80 N or H2S free ambient air e Test gas bottle with HS ppm 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 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 GCDO5 EasyConf 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 regulations TRGS 220 Attention 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 Correction of the Zero point at the A
6. G User Manual HS Detector Nov 12 1 Intended Use 3 2 Functional Description 3 2 1 Control Mode 3 2 2 Sensor 3 3 Installation 4 3 1 Mounting Instructions 4 3 2 Installation 4 4 Electrical Connection 4 4 1 Wiring Connection 5 5 Commissioning 5 5 1 Correction of the Zero point at the Analog Output Signal 5 5 2 Calibration 6 5 3 Manual Calibration 6 5 2 1 Zero point 6 5 3 2 Gain 6 5 3 3 Calculation of Control Voltage 7 5 4 Calibration with GCD 05 Service Tool 7 5 5 Calibration with GCD05 EasyConf 7 5 6 Addressing only for GCD 05 Bus mode 8 5 7 Option Relay Output 8 6 Inspection and Service 9 6 1 Inspection 9 6 2 Service and Calibration 9 6 3 Exchange of Sensor Element 9 7 Troubleshooting 10 7 1 Analog Mode 10 7 2 GCD 05 Bus Mode 10 8 Cross sensitivity Data 10 9 Technical Data 11 10 Figures 13 11 Part Disposal 15 12 Notes and General Information 15 12 1 Intended Product Application 15 12 2 Installers Responsibilities 15 12 3 Maintenance 15 12 4 Limited Warranty 15 1 tomatikprod ukter GLID User Manual H S Detector Nov 12 Electrochemical Hydrogen Sulphide Transmitter 1 Intended Use The H2S analog digital gas detector 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 ap plication ranges are waterworks and wastewater treatment systems The intended sites are all a
7. d repair or been subject to abuse ac cidental 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 detector AP shall not be liable for any incidental or consequential damages arising out of or related to the use of the detectors 18 utomatikprodukter
8. dapter carefully by turning lightly Check the sensor for correct mounting 5 3 2 Gain e Connect digital voltmeter to pin Test e Connect calibration adapter carefully to the sensor element e Apply calibration test gas HS 150 ml min 1 Bar 14 5 psi 10 e Wait two minutes until the signal is stable adjust control voltage with potentiometer Gain until the signal corresponds to the calculated value 2 mV see 5 3 3 Calculation of Control Voltage e Remove calibration adapter with a careful light turn Check the sensor for correct mounting r KN A utomatikprodukter GLD User Manual H S Detector Nov 12 By limiting the gain factor calibration will not be possible any more when the sensitivity of the sensor reach es a residual sensitivity of 30 Then the sensor has to be replaced 5 3 3 Calculation of Control Voltage Signal start 2 V 4 mA Control voltage mV 160 mV x test gas concentration H2S ppm 40 mV measuring range H S ppm Signal start 0 V 0 mA Control voltage mV 200 mV x test gas concentration H S ppm measuring range H S ppm Example 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 5 4 Calibration with GCD 05 Service Tool e Connect the GCD 05 Service Tool to the transmitter open menu Calibration e Enter measuring range and test gas concentration e Connect calib
9. e H S detectors are designed and manufactured for control applications and air quality compliance in commercial buildings and manufacturing plants 12 2 Installers Responsibilities It is the installer s responsibility to ensure that all detectors are installed in compliance with all national and local codes and OSHA requirements Installation should be implemented only by technicians familiar with proper installa tion techniques and with codes standards and proper safety procedures for control installations and the latest edi tion of the National Electrical Code ANSI NFPA70 It is also essential to follow strictly all instructions as provided in the user manual 12 3 Maintenance It is recommended to check the detector 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 detector card with the sensor may be returned for service to Automatikprodukter 12 4 Limited Warranty AP warrants the detectors 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 attempte
10. efully 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 GCD 05 Configuration and Calibration Software 5 6 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 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 maxi mum 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 follow ing table 8 ee Automatikprodukte at GIDD User Manual H S Detector Nov 12 Switch Jumper pos 01 Jumper pos 02 Jumper pos 03 Jumper pos 04 M ME EE gt ae inactive inactive inactive inactive oO 9 KE A utomatikprodukter as GED User Manual H S Detector Nov 12 5 7 Option Relay Output The two relays are activated in dependence of the gas concentration If the gas concentra
11. he connec tion diagram without any power applied to conductors and according to the corresponding regulations Avoid any influence of external interference by using shielded cables for the signal line but do not connect the shield Recommended cable for analog mode J Y St Y 2x2x0 8 LG 20 AWG max loop resistance 73 Q km 20 8 Q 1000 ft Serial Interface Mode Required cable for RS 485 mode J Y St Y 2x2x0 8 LG 20 AWG max loop resistance 73 O km 20 8 Q 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 consid ered as well It is important to ensure that the wire shields or any bare wires do not short the mounted PCB Wiring Connection Open the cover Unplug basic PCB carefully from terminal blocks X4 and X5 Insert the cable and connect cable leads to terminal blocks See fig 1 and 2 Replug the PCB in the terminal blocks X4 X5 with care Replace the cover 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 Check mounting location Select output signal form Current or voltage and starting point 0 or 20 See fig 4 Check power voltage Check PCB
12. nal Output EE V DC DD mA Selection analog output signal Fig 4 Calibration adapter Fig 5 Type Calibr set 17 Automatikprodukter i GIDD User Manual H S Detector Nov 12 11 Part Disposal Since August 2005 there are EC wide directives defined in the EC Directive 2002 96 EC and in national codes con cerning 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 12 Notes and General Information It is important to read this user manual thoroughly and clearly in order to understand the information and instruc tions The detector must be used within product specification capabilities The appropriate operating and mainte nance instructions and recommendations must be followed Due to on going product development AP reserves the right to change specifications without notice The informa tion contained herein is based upon data considered to be accurate However no guarantee is expressed or implied regarding the accuracy of this data 12 1 Intended Product Application Th
13. nalog Output Signal The analog 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 repeat edly until the measuring signal reaches 40 0 2 mV After 44mV the signal starts again at 36 mV The correc tion 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 5 2 Calibration Depending on the version and the control mode there are three different possibilities to calibrate the transmitter 5 eee A utomatikprodukter GLD User Manual H S Detector Nov 12 Manual calibration Manual calibration is only possible if the detector 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 volt age is available at the test pins X6 Remove the jumper after calibration Calib
14. nd X5 Replug PCB correctly Short circuit calculated value Sensor sensitivity lt 30 Replace sensor element No reaction of the output signal in d ds 11 utomatikprodukter GED User Manual H S Detector Nov 12 7 2 GCD 05 Bus Mode Power voltage not applied Measure tension at X4 Pin 1 and 2 Yellow LED not shining PCB not plugged in correctly at X4 Replug PCB correctly X5 Check wiring Transmitter not addressed check EEE bus wiring incl topology and termi No communication at the transmit k Ai me po ogy Yellow LED not flashing nation ad 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 see section 9 The table doesn t claim to be com plete Other gases can have an influence on the sensitivity too The indicated sensitivity data are only standard values referring to new sensor elements 12 utomatikprodukter GLID User Manual H S Detector Nov 12 9 Technical data General sensor performances Gas type Hydrogen sulphide H2S Sensor element Electrochemical diffusion Measuring range standard other ranges according to 0 100 ppm or 0 200 factory set the data sheet others on request Temperature range Pressure range Storage temperature range Storage time Mounting height Stability amp resolu
15. ration 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 until the measuring value is stable and then perform automatic zero calibration e Apply calibration test gas H S 150 ml min 1 Bar 14 5 psi 10 e Wait until the measuring value is stable and then perform automatic gain calibration e 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 GCD 05 Service Tool 5 5 Calibration with GCD05_EasyConf e Connect the PC via USB RS 485 communication set to the transmitter open menu Calibration 7 KE utomatikprodukter GED User Manual H S Detector Nov 12 e Enter measuring range and test gas concentration e Connect calibration adapter carefully to the sensor element e Apply synthetic air 150 ml min 1 Bar 14 5 psi 10 or H2S free ambient air e Wait until the measuring value is stable and then perform automatic zero calibration e Apply calibration test gas HS 150 ml min 1 Bar 14 5 psi 10 e Wait until the measuring value is stable and then perform automatic gain calibration e Remove calibration adapter car
16. ration 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 Software calibration via PC with Software GCD05 EasyConf In the standard version equipped with the communication connector X12 calibration can also be done by means of the configuration and calibration software GCD 05 EasyConf Software calibration is possible for both control modes 5 3 Manual Calibration 5 2 1 Zero point e Connect digital voltmeter to pin Test 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 Vor 4 mA 40 mV 0 ppm Signal start at 0 V or 0 mA OmV 0ppm 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 a
17. reas being directly connected to the public low voltage supply e g residential commer cial and industrial ranges as well as small enterprises according to EN50 082 The H S analog digital detector must not be used in potentially explosive atmospheres The detector 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 detector is equipped with a serial interface RS 485 for the connection to the 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 HS also works in the 2 wire technique GCD 05_Bus mode The detector can be connected to the GCD 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 detector 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
18. t of air factor 1 19 Recommend ed 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 detector in the centre of the airflow air passages suction holes e Mount the detector 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 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 3 ee utomatikprodukter GLID User Manual H S Detector Nov 12 4 Electrical Connection Consider static electricity See 3 Mounting 4 1 Note Installation of the electrical wiring should only be executed by a trained specialist according to t
19. tion Repeatability 2 of reading Long term output drift Response time Life expectancy Cross sensitivity1 Reaction ppm HS Ee O Nitric oxide NO 35 so ke Power supply 18 28 VDC AC reverse polarity protected 2 wire mode only VDC Power consumption without options 22 mA max 0 6 VA Analog mode 12 mA max 0 3 VA GCD 05_Bus mode Output signal Analog output signal 0 4 20 mA load lt 500 0 Selectable Current tension 0 2 10 V load 2 50k Q Starting point 0 20 proportional overload and short circuit proof Serial interface RS 485 19200 Baud 9600 ModBus Protocol depending on version AP GCDO05 or ModBus 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 13 utomatikprodukter GED User Manual H S Detector Nov 12 Physical Enclosure stainless steel Type 5 Stainless steel V2A Dimensions WxHxD er Dimensions WxHxD 2i 24 to 14 AWG Voltage signal ca 200 m 500 ft Approvals Enclosure Type A UL 508A Warranty 1 year on material without sensor Relay output 30 VAC DC 0 5 A potential free SPDT 30 VAC DC 0 5 A potential free SPNO SPNC 30 mA max 0 8 VA Alarm relay 1 switching threshold 5 ppm Alarm relay 2 switching threshold 8 ppm Power consumption Warning buzzer 85 dB distance 300 mm 1 ft 3 5 kHz
20. tion exceeds the adjusted alarm threshold the corresponding relay switches on If the gas concentration falls below the threshold minus hys teresis 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 6 Inspection and Service Inspection service and calibration of the detectors 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 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 AP recommends checking the detector every three months and maintaining it every 12 months If different inter vals 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 transmit ter
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