ATI Technologies A12-17 Operation And Maintenance Manual Download Page 21 | Manualshive

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A

12-17 Combustible Gas Transmitter

O & M Manual
Rev-H, 7/15

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Figure 14 cont’d - Transmitter Program Chart

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Summary of Contents for A12-17

Page 1: ...nology Inc ATI UK Limited 6 Iron Bridge Drive Unit 1 2 Gatehead Business Park Collegeville PA 19426 Delph New Road Delph Phone 800 959 0299 Saddleworth OL3 5DE 610 917 0991 Phone 44 0 1457 873 318 Fax...

Page 2: ...P 17 START UP DELAY 18 FRONT PANEL MAGNETIC CONTROLS 18 LIQUID CRYSTAL DISPLAY 19 MENU SEQUENCE 20 Figure 14 cont d Transmitter Program Chart 21 TRANSMITTER MODE SELECTION 22 INFORMATION MODE 22 TEST...

Page 3: ...ONS NO AUTO TEST 11 FIGURE 6 TRANSMITTER CONNECTIONS WITH AUTO TEST 12 FIGURE 7 DUAL CONDULET CONNECTIONS SENSOR W O AUTO TEST 13 FIGURE 8 DUAL CONDULET CONNECTIONS SENSOR WITH AUTO TEST 13 FIGURE 9 D...

Page 4: ...r process tanks or piping or in enclosed spaces where combustible gases may leak or accumulate The A12 17 transmitters are composed of two main parts the gas sensing element and the electronic transmi...

Page 5: ...BASE WALL MOUNT BRACKET PLUG TRANSMITTER MODULE INTO THE RELAY BASE VIA THE RELAY PLUG MOUNTED ON THE BOTTOM OF THE TRANSMITTER MODULE NPT NPT C10 17 COMBUSTIBLE SENSOR NPT 1 3 8 FLATS 1 NPT C28 17 CO...

Page 6: ...r The Auto Test feature provides daily verification of sensor response While it is not intended to replace calibration the automatic sensor test greatly reduces the amount of manual testing required t...

Page 7: ...24 VDC 1000 ohms maximum load at 28 VDC Controls Four magnetic control switches operable through glass window Temperature Limits 40 to 70 C Sensor Type Catalytic bead type poison resistant Sensor Opti...

Page 8: ...it to a wall or plate NOTE Gas sensors without auto test are shipped with a protective plastic cap over the end This cap should be left in place to avoid damage to the sensor during installation If th...

Page 9: ...A12 17 Combustible Gas Transmitter O M Manual Rev H 7 15 9 1 75 DIA 44 4 mm DIA Figure 4 Gas Transmitter Dimensions with Auto Test...

Page 10: ...nsors contain two heated elements One of these elements is active and will allow combustible gases or vapors to burn on its catalytic surface The other is passive and does not react to gases These two...

Page 11: ...s one conductor GND as the power supply and output signal common Figures 5 and 6 show power output and sensor connections for transmitters with and without Auto test GROUND JUMPER 03 0067 GND TERMINAL...

Page 12: ...A12 17 Combustible Gas Transmitter O M Manual Rev H 7 15 12 Figure 6 Transmitter Connections with Auto Test...

Page 13: ...down at a convenient elevation for making calibration adjustments ATI s dual Condulet system is designed for this purpose and the interconnecting wiring is shown below A special remote calibration ada...

Page 14: ...A12 17 Combustible Gas Transmitter O M Manual Rev H 7 15 14 Figure 9 Dual Condulet Typical Installation...

Page 15: ...A12 17 Combustible Gas Transmitter O M Manual Rev H 7 15 15 A12 17 TO B14 CUSTOMER WIRING DIAGRAM Figure 10 B14 Receiver Connections...

Page 16: ...A12 17 Combustible Gas Transmitter O M Manual Rev H 7 15 16 A12 17 TO GENERIC INSTRUMENT WIRING DIAGRAM Figure 11 Generic Instrument Customer Wiring...

Page 17: ...n number 17 Two digit gas code number for combustible gas 100 LEL Full scale range of the transmitter InSt nonE InSt Indicates the sensor contains an Auto Test generator nonE Indicates the sensor does...

Page 18: ...DOWN arrow with the magnetic screwdriver supplied with the unit FRONT PANEL MAGNETIC CONTROLS The front of the transmitter module contains 4 magnetically activated controls As shown in Figure 12 thes...

Page 19: ...g the 4 mA output value C Span Indicator activated while spanning a sensor module or adjusting the 20 mA output value D Down Key Indicator activated when the magnetic control marked is activated E Up...

Page 20: ...menu selections Through menu selections the user can review information about the transmitter calibrate the transmitter manually activate the Auto Test function if installed simulate 4 different mA o...

Page 21: ...A12 17 Combustible Gas Transmitter O M Manual Rev H 7 15 21 Figure 14 cont d Transmitter Program Chart...

Page 22: ...ew the transmitter information activate the MODE control until the display shows InFo and then activate the ENTER control The display will scroll through the same information shown during power up See...

Page 23: ...The A12 17 transmitter provides the ability to simulate 4 different current output values in order to test the complete detection system The output may be set to values of 4 0 12 0 and 20 0 and may al...

Page 24: ...changing gas concentrations To verify output operation using span gas apply gas while the transmitter is in the NORMAL mode of operation after calibration is complete ZERO ADJUSTMENT As previously me...

Page 25: ...ting span requires a source of reliable span gas ATI calibration kits contain a 1 methane standard equivalent to 20 LEL Other concentrations or other gas types may be used if preferred To adjust the s...

Page 26: ...equired When adjustment is finished activate ENTER to store the value and ENTER again when the display indicates donE This will take you back to the NORMAL display and mode of operation AUTO TEST ENAB...

Page 27: ...h the span adjustment instructions but set the LCD to 50 in step 4 TABLE 1 GAS LEL Methane 20 Propane 35 n Butane 35 n Pentane 40 n Hexane 50 Hydrogen 30 Methanol 30 Ethanol 40 Isopropyl Alcohol 55 Ac...

Page 28: ...loop goes to 3 mA and will stay at that value until the problem is corrected Activating the ENTER key will clear the alarm if and only if the problem has been corrected Otherwise the display will stil...

Page 29: ...le Disconnect the 3 or 5 sensor wires from the octal base and unscrew the sensor from the explosion proof transmitter housing Screw in the replacement sensor and reconnect at the octal base After a ne...

Page 30: ...bration Adapter sensor without auto test 00 0261 Remote Calibration Adapter Rain Shield sensor without auto test 00 0298 Flowcell sensor without auto test 00 0786 C28 17 Combustible Gas Sensor with Au...

Page 31: ...exposure to excessive gas concentrations Should inspection indicate that sensors have been expended rather than failed prematurely the warranty shall not apply The Manufacturer assumes no liability f...

Page 32: ...DUCTS NH3 Ammonia CO Carbon Monoxide H2 Hydrogen NO Nitric Oxide O2 Oxygen CO Cl2 Phosgene Br2 Bromine Cl2 Chlorine ClO2 Chlorine Dioxide F2 Fluorine I2 Iodine HX Acid Gases C2H4O Ethylene Oxide C2H6O...

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