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Model B12-71 Wet Hydrogen Gas Transmitter 

 

O & M Manual 

- 3 - 

 

Rev-D, 7/15 

 

TABLE OF FIGURES 

 

Figure 1 - Typical % Version Insertion System Insallation (ATI-0156) .................................................. 4

 

Figure 2 - Typical PPM Remote Version Insertion System Installation (ATI-0165) .............................. 5

 

Figure 3 - Typical PPM Standard Version Insertion System Installation (ATI-0166) ........................... 6

 

Figure 4 - Typical Flow Through System Installation (ATI-0223) ........................................................... 7

 

Figure 5 - Nema-4X Enclosure Dim for Remote PPM & % Versions (ATI-083) ..................................... 9

 

Figure 6 - Nema-4X Enclosure Dim for Std. PPM Versions (ATI-0198) ............................................... 10

 

Figure 7 - Enplosion-Proof Transmitter Enclosure Dimensions (ATI-0226) ....................................... 10

 

Figure 8 - Wet Hydrogen Gas Sensor Dimensions all Versions (ATI-0276)........................................ 11

 

Figure 9 - Electrical Connections, Nema-4 Enclosure (ATI-0288) ....................................................... 12

 

Figure 10 - Electrical Connections, Explosion-Proof Enclosure (ATI-0289)....................................... 13

 

Figure 11 - % Hydrogen Gas Sensor Assembly (ATI-0290) .................................................................. 14

 

Figure 12 - Transmitter Controls & Test Points (ATI-0291) .................................................................. 17

 

 

 

Summary of Contents for B12-71

Page 1: ...chnology 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 F...

Page 2: ...OF CONTENTS 2 INTRODUCTION 4 SPECIFICATIONS 8 INSTALLATION 9 MECHANICAL MOUNTING 9 ELECTRICAL CONNECTION 12 HYDROGEN SENSOR ASSEMBLY 14 OPERATION 16 TRANSMITTER TEST POINTS 16 DIGITAL DISPLAY OPTION 1...

Page 3: ...ystem Installation ATI 0223 7 Figure 5 Nema 4X Enclosure Dim for Remote PPM Versions ATI 083 9 Figure 6 Nema 4X Enclosure Dim for Std PPM Versions ATI 0198 10 Figure 7 Enplosion Proof Transmitter Encl...

Page 4: ...Hydrogen Gas Sensor It provide a low power method of monitoring hydrogen in moisture saturated gas streams GAS CODE NO STD RANGE MIN RANGE MAX RANGE HYDROGEN 71 4 0 1 0 10 HYDROGEN 71 2000 PPM 0 500...

Page 5: ...Model B12 71 Wet Hydrogen Gas Transmitter O M Manual 5 Rev D 7 15 Figure 2 Typical PPM Remote Version Insertion System Installation ATI 0165...

Page 6: ...Model B12 71 Wet Hydrogen Gas Transmitter O M Manual 6 Rev D 7 15 Figure 3 Typical PPM Standard Version Insertion System Installation ATI 0166...

Page 7: ...l 7 Rev D 7 15 Figure 4 shows a typical flow through B12 71 gas monitoring system The sensor is shown with the flowcell in place If used in insertion applications the flowcell must be removed Figure 4...

Page 8: ...Electronic Repeatability 1 of span Electronic Linearity 0 5 of span Output Loop powered 4 20 mA 675 ohms maximum at 24 VDC Power 12 30 VDC Enclosure NEMA 4X polystyrene Controls Zero and span potentio...

Page 9: ...ng screws inserted through the blind mounting holes accessible by removing the transmitter cover Figure 5 shows the center to center mounting hole dimensions for this enclosure If rigid conduit is to...

Page 10: ...nclosure Dim for Std PPM Versions ATI 0198 Explosion proof transmitter enclosures should be supported by the conduit system and the installation should include proper conduit seals as required by loca...

Page 11: ...should be installed perpendicular to the air flow and should be inserted far enough into the vent so that the sensor tip is at least into the stack The sensor in a flow configuration is used in conjun...

Page 12: ...oop connection The sensor connects to a terminal block TB2 on the transmitter circuit board The output loop wiring is connected to TB1 as shown in Figure 9 The explosion proof transmitter electrical c...

Page 13: ...Hydrogen Gas Transmitter O M Manual 13 Rev D 7 15 Figure 10 Electrical Connections Explosion Proof Enclosure ATI 0289 NOTE GREEN Conductor used on PPM Version of sensor ONLY If using sensor wire usin...

Page 14: ...t screw from the side of the sensor body 2 Remove the membrane cap from the bottom of the canister and discard the protective membrane O rings are contained in grooves on both the bottom and top of th...

Page 15: ...ools to tighten 7 Shake excess electrolyte from the vent hole on the side of the sensor and replace the vent screw The sensor is now ready for operation The membrane should be stretched tightly across...

Page 16: ...l and the system must be allowed to stabilize for at least a few hours before making any adjustments The sensor must be connected to the transmitter and the transmitter must be powered for the sensor...

Page 17: ...ified on the order The LCD indicates gas concentration directly in PPM or depending on the range It is directly in the 4 20 mA output circuit so that it is a very accurate indicator of the signal bein...

Page 18: ...meter to adjust the test point voltage to 0 040 VDC 40 mv If the transmitter is supplied with the LCD display simply adjust the potentiometer until the display reads 0 0 SPAN ADJUSTMENT Once the zero...

Page 19: ...r uses a membrane that can loose sensitivity with the accumulation of solids or precipitates in the membrane As a preventive measure sensors should be rebuilt with new membrane and electrolyte about e...

Page 20: ...018 Seal ring required for NEMA 4X rating on conduit hubs 00 0781 Wet Hydrogen gas sensor 00 1345 A10 71 Wet standard sensor PPM version 00 1346 A10 71 Wet remote sensor PPM version 02 0069 Sensing el...

Page 21: ...improper storage or extended exposure to excessive gas concentrations Should inspection indicate that sensors have failed due to any of the above the warranty shall not apply The Manufacturer assumes...

Page 22: ...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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