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2 • 65-2331-04 H

2

S Transmitter

Description

This section describes the components of the H

2

S transmitter. The transmitter is a 4 - 20 

mA type detector head. It consists of the H

2

S detector, calibration adapter/splash guard, 

amplifier, the amplifier junction box, and the detector junction box. The two-junction-box 
configuration is intended for situations where the detector needs to be installed at an 
inaccessible location. The detector junction box can be installed at the inaccessible location 
and the amplifier junction box can be installed in a more readily accessible area.

Figure 1:  H

2

S Transmitter Component Location

 

T

O

X

IC

 

   

  

    

 O

X

Y

  

SI

G

/PW

R

 

S

Detector J-Box

Terminal Strip

Amplifier

Amplifier J-Box

SP

A

N

ZE

R

O

Hydrogen Sulfide Detector

Calibration Adapter/Splash Guard

Summary of Contents for 65-2331-04

Page 1: ...RKI Instruments Inc www rkiinstruments com 65 2331 04 Hydrogen Sulfide Transmitter Operator s Manual Part Number 71 0440 Revision P1 Released 9 15 17...

Page 2: ...alibration and maintenance of the detector is essential for proper operation and correct readings Please calibrate and maintain this detector regularly Frequency of calibration depends upon the type o...

Page 3: ...t costs local repair costs transportation costs or contingent expenses incurred without our prior approval THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER WARRANTIES AND REPRESENTATIONS EXPRES...

Page 4: ...the Detector to the Amplifier 8 Wiring the Amplifier to a Controller 9 Startup 11 Introducing Incoming Power 11 Setting the Zero Signal 12 Maintenance 13 Preventive Maintenance 13 Troubleshooting 15 R...

Page 5: ...ual to assure proper and safe operation of the 65 2331 04 and to minimize the risk of personal injury Be sure to maintain and periodically calibrate the 65 2331 04 as described in this manual Table 1...

Page 6: ...ox The two junction box configuration is intended for situations where the detector needs to be installed at an inaccessible location The detector junction box can be installed at the inaccessible loc...

Page 7: ...e sensor within the detector housing A pre amplifier located between the sockets and two interconnect wires conditions the sensor s signal before the signal reaches the amplifier Housing Cap Cap Gaske...

Page 8: ...the sensor to a 4 to 20 mA signal that corresponds to the detection range and transmits the signal to a gas monitoring controller A foam gasket that orients the amplifier and keeps it from rotating i...

Page 9: ...ures The black test point in the lower left corner is the negative test point and the red test point below the zero pot is the positive test point Amplifier Junction Box The amplifier junction box pro...

Page 10: ...isturbed Make sure there is sufficient room to perform start up maintenance and calibration procedures The site should be easily accessible For the detector junction box select a site where the target...

Page 11: ...see Figure 5 4 Install 3 16 inch I D flexible polyurethane tubing to the fitting at the bottom of the calibration adapter splash guard and route it to an accessible area that is close to the amplifier...

Page 12: ...drain wire disconnected and insulated at the detector junction box You will connect the opposite end of the cable s drain wire to the amplifier junction box s chassis earth ground 6 Secure the detecto...

Page 13: ...ient grounding location Install a lug on the shield drain wire or wrap the shield drain wire around the mounting screw Do not connect the shield drain wire at the detector junction box Wiring the Ampl...

Page 14: ...used leave the cable shield s drain wire disconnected and insulated at the amplifier junction box You will connect the opposite end of the cable s drain wire to the controller s chassis earth ground...

Page 15: ...s procedures to start up the H2S transmitter and place the transmitter into normal operation Introducing Incoming Power 1 Complete the installation procedures described earlier in this manual 2 Verify...

Page 16: ...elow describes applying zero emission air usually called zero air using a calibration kit that includes calibration gas sample tubing and a fixed flow regulator with an on off knob RKI Instruments Inc...

Page 17: ...the H2S transmitter may cause alarms Be sure to put the controller into its calibration program or disable external alarms before performing this test Preparing for the response test 1 Place the contr...

Page 18: ...e reading calibrate the affected transmitter s as described in the Calibration on page 19 4 Turn the regulator s on off knob clockwise to close the regulator 5 Unscrew the regulator from the calibrati...

Page 19: ...slowly or does not respond to response test Unable to accurately set the zero or response reading during calibration Transmitter requires frequent calibration Note Under normal circumstances the trans...

Page 20: ...r housing 8 Make sure the cap gasket is in place and screw the detector housing cap back onto the detector housing body 9 Turn on or plug in power to the controller 10 Turn on the controller and place...

Page 21: ...controller terminal strip from their sockets You may leave the wires connected to the terminal strips 5 Unscrew and remove the screw with the flat and lock washers that secures the amplifier to the j...

Page 22: ...at is attached to the calibration adapter splash guard To determine the response time based on the length of tubing connected 1 Place the controller into its calibration mode or disable external alarm...

Page 23: ...on the amplifier Plug the positive lead into the red test point plug the negative lead into the black test point 4 Use the following formula to determine the correct test points output for the calibra...

Page 24: ...termined earlier If necessary use the span pot on the amplifier to adjust the reading to match the correct response reading 5 Turn the regulator knob clockwise to close the regulator 6 Unscrew the reg...

Page 25: ...udes detector two junction boxes and amplifier CSA classified 65 2428 H2S replacement detector assembly includes sensor CSA classified 71 0440 65 2331 04 H2S Transmitter Operator s Manual this documen...

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