RKI Instruments 65-2405RK-05-04 Operator'S Manual Download Page 1

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RKI Instruments, Inc.

www.rkiinstruments.com

65-2405RK-05-04

Combustible Gas Transmitter

Operator’s Manual

Part Number: 71-0547

Revision: P1

Released: 2/1/21

Summary of Contents for 65-2405RK-05-04

Page 1: ...RKI Instruments Inc www rkiinstruments com 65 2405RK 05 04 Combustible Gas Transmitter Operator s Manual Part Number 71 0547 Revision P1 Released 2 1 21...

Page 2: ...eriodic calibration 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 t...

Page 3: ...replacement 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 REPRESENTATI...

Page 4: ...Detector to the Amplifier 12 Wiring the Amplifier to a Controller 12 Startup 13 Introducing Incoming Power 13 Setting the Zero Signal 14 Maintenance 14 Preventive Maintenance 14 Troubleshooting 15 Re...

Page 5: ...tation for installation instructions WARNING When using the 65 2405RK 05 04 you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65 2405RK 05 04 and...

Page 6: ...end allowing ambient air to diffuse into the detector The flame arrestor also contains any sparks which may occur within the detector The 1 2 NPT mounting threads at the top of the detector allow you...

Page 7: ...lug in style terminal strip located near the top of the amplifier Use the controller terminal strip to wire the transmitter to a controller Detector Terminal Strip The detector terminal strip is a fou...

Page 8: ...installed remotely from the amplifier junction box The combustible gas detector is factory installed in the bottom 3 4 NPT conduit hub A terminal strip is provided for wiring connections and the detec...

Page 9: ...g down see Figure 3 3 Install 3 16 inch I D flexible polyurethane tubing to the fitting at the bottom of the calibration cup splash guard and route it to an accessible area that is close to the amplif...

Page 10: ...tector junction box s cover to the junction box 7 Guide the other end of the four conductor shielded cable or four wires in conduit through the bottom conduit hub of the amplifier junction box 8 To ga...

Page 11: ...at the amplifier junction box The amplifier mounting screw is a convenient grounding location Install a lug on the shield drain wire or wrap the shield drain wire around the mounting screw Do not con...

Page 12: ...of the junction box 6 Pull out the controller terminal strip and connect the three wires to the terminal strip as follows see Figure 5 Connect the positive wire to the PWR SIG terminal Connect the si...

Page 13: ...mitter and place the transmitter into normal operation Introducing Incoming Power 1 Complete the installation procedures described earlier in this manual 2 Verify that the power wiring to the controll...

Page 14: ...Plug the voltmeter leads into the test points on the amplifier Plug the positive lead into the red test point plug the negative lead into the black test point 5 Verify a voltmeter reading of 100 mV 2...

Page 15: ...urately set the zero or response reading during calibration Transmitter requires frequent calibration Note Under normal circumstances the transmitter requires calibration once every 3 months Some appl...

Page 16: ...n tape to the hub and or detector threads to seal them 8 Connect the detector leads to the terminal block the same way the old detector was wired see Figure 4 on page 11 9 Screw the calibration cup sp...

Page 17: ...ow zero depending on the setting of the zero pot Be sure to make arrangements so that this does not cause unwanted alarms 10 Turn on or plug in power to the controller 11 Turn on the controller and pl...

Page 18: ...se time of the detector will depend on the length of flexible tubing that is attached to the calibration cup splash guard To determine the response time based on the length of tubing connected 1 Place...

Page 19: ...rea is determined to be non hazardous Keep the junction box cover tightly closed during operation 1 Unscrew and remove the junction box cover 2 Set a voltmeter to measure in the millivolt mV range 3 P...

Page 20: ...r the length of time determined in Determining Response Time on page 18 and verify that the reading matches the response reading 2 mV you determined earlier If necessary use the span pot on the amplif...

Page 21: ...steel 81 0007RK 01 Steel calibration cylinder 15 LEL hexane in air 34 liter steel 81 0012RK 01 Steel calibration cylinder 50 LEL methane in air 34 liter steel 81 0076RK 01 Steel calibration cylinder...