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8 • 65-2443SS PPM Hydrogen Transmitter

Test Points

The test points are on the right side of the amplifier (see Figure 2). The test points produce a 100 to 500 
mV output that corresponds to the transmitter’s 4 to 20 mA output. Use the test points and a voltmeter 
to measure the amplifier’s output during the start-up and calibration procedures. The black test point 
on the bottom is the negative (-) test point and the red test point on the top is the positive (+) test point.

Junction Box

The stainless steel, corrosion resistant junction box allows you to install the detector at a mounting site 
that is remote from a controller, and it protects the detector wiring connections. Two conduit hubs 
allow you to mount the detector to the junction box and connect the wiring from the detector to a 
controller. An O-ring seals the interface between the junction box cover and the junction box base.
Use the cover on the front of the junction box to access the interior of the junction box. The detector 
and amplifier are factory installed in the junction box. A locking set screw on the junction box cover 
allows you to secure the junction box cover and prevent it from being removed.

Summary of Contents for 65-2443SS

Page 1: ...RKI Instruments Inc www rkiinstruments com 65 2443SS PPM Hydrogen Transmitter Operator s Manual Part Number 71 0549 Revision P1 Released 3 4 21...

Page 2: ...ic 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 the ty...

Page 3: ...pair 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 EXPRESSED OR IMPLIED A...

Page 4: ...tup 12 Introducing Incoming Power 12 Transmitter Burn In Period 12 Setting the Zero Signal 12 Maintenance 13 Preventive Maintenance 13 Troubleshooting 13 Replacing Components of the PPM Hydrogen Trans...

Page 5: ...n transmitter WARNING When using the 65 2443SS you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65 2443SS and to minimize the risk of personal in...

Page 6: ...the detector The 1 2 NPT mounting threads at the top of the detector allow you to mount it into the bottom conduit hub of the junction box A rainshield screws onto the bottom of the detector flame ar...

Page 7: ...tor terminal strip to connect the detector to the amplifier NOTE The detector is factory wired to the detector terminal strip See page 10 for all wiring procedures related to the transmitter Span Pot...

Page 8: ...tainless steel corrosion resistant junction box allows you to install the detector at a mounting site that is remote from a controller and it protects the detector wiring connections Two conduit hubs...

Page 9: ...unting site Select a site where the transmitter is not likely to be bumped or disturbed Make sure there is sufficient room to perform start up maintenance and calibration procedures Select a site wher...

Page 10: ...hrough the top conduit hub of the junction box 7 Pull out the controller terminal strip and connect the three wires to the terminal strip as follows see Figure 4 Connect the positive wire to the PWR S...

Page 11: ...PM Hydrogen Transmitter to a Controller 12 If shielded cable is used connect the cable s drain wire to an available chassis earth ground at the controller RKI controllers typically have a ground stud...

Page 12: ...on the controller 5 Verify that the controller is on and operating properly Refer to the controller operator s manual Transmitter Burn In Period Once power has been applied to the transmitter it will...

Page 13: ...robable Causes Recommended Action Fail Condition Controller indicates a fail condition The transmitter wiring is disconnected or misconnected The transmitter is malfunctioning 1 Verify that the transm...

Page 14: ...Figure 4 on page 11 of this manual 9 Re install the detector terminal strip into its socket NOTE When a transmitter is first powered up with a new detector its output may be high enough to cause an a...

Page 15: ...Figure 4 on page 11 of this manual If controller leads or detector leads were removed during this procedure refer to Tables 4 and 5 below 8 Install the amplifier into the junction box with the screw...

Page 16: ...or the environment is not well controlled then more frequent calibration than every 6 months may be necessary Calibration This section describes how to calibrate the ppm hydrogen transmitter It inclu...

Page 17: ...program or disable external alarms before continuing Setting the Zero Reading The detector s zero setting is controlled by electronics and is not user adjustable Setting the Span Reading 1 Screw the r...

Page 18: ...18 0416RK 11 Junction box with cover stainless steel 33 2001RK 01 Humidifier tube w 3 16 tubing on ends for calibration kit 57 1070 01 Amplifier specify target gas and detection range 61 0160RK PPM h...

Page 19: ...00 ppm hydrogen calibration cylinder and 103 liter 2 000 ppm hydrogen calibration cylinder 81 F072RK LV Calibration kit includes regulator humidifier tube calibration cup 34 liter 1 000 ppm hydrogen s...

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