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Summary of Contents for RKI Instruments 65-2422RK-05
- Page 1 65-2422RK-05 Hydrogen Sulfide Transmitter Operator’s Manual Part Number: 71-0114RK Revision: D Released: 6/12/20 www.rkiinstruments.com...
- Page 2 Typical calibration frequen- cies for most applications are between 3 and 6 months, but can be required more often or less often based on your usage. 2 • 65-2422RK-05 H S Transmitter...
- Page 3 Product Warranty RKI Instruments, Inc. warrants gas alarm equipment sold by us to be free from defects in materials, workmanship, and performance for a period of one year from date of shipment from RKI Instruments, Inc. Any parts found defective within that period will be repaired or replaced, at our option, free of charge.
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Page 4: Table Of Contents
Parts List ..............20 4 • 65-2422RK-05 H... -
Page 5: Overview
WARNING: When using the 65-2422RK-05, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65-2422RK-05 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 65-2422RK-05 as described in this manual. -
Page 6: Description
ZER O SP AN Hydrogen T OXIC Sulfide T OXIC Amplifier Jumper Block Installed To Toxic Securing Select Header Screw (2) Detector Terminal Strip Hydrogen Sulfide Detector Figure 1: H S Transmitter Component Location 6 • 65-2422RK-05 H S Transmitter... -
Page 7: H 2 S Detector
A cap gasket seals the interface between the housing and cap. Rubber Boot and Spacer A rubber boot and spacer are installed between the detector housing cap and the sensor. They help ensure that the detector remains plugged into the detector housing body. 65-2422RK-05 H S Transmitter • 7... -
Page 8: Amplifier
The zero pot is above the span pot. Use the zero pot to adjust the transmitter’s target gas-free output during the start-up and calibration procedures. CAUTION:The third potentiometer is factory-set. Do not adjust it. 8 • 65-2422RK-05 H S Transmitter... -
Page 9: Junction Box
• Select a site where the target gas is likely to be found first. NOTE: If your application does not require a specific mounting site, mount the transmitter at approximately breathing level. 65-2422RK-05 H S Transmitter • 9... - Page 10 5. At the monitoring site, use #10 screws through the junction box’s two mounting holes to secure the junction box to a vertical surface. CAUTION:Mount the H S transmitter with the detector facing down (see Figure 2). 10 • 65-2422RK-05 H S Transmitter...
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Page 11: Wiring The H S Transmitter To A Controller
S transmitter through one of the conduit hubs at the controller housing. CAUTION:Do not route power and transmitter wiring through the same conduit hub. The power cable may disrupt the transmission of the transmitter signal to the controller. 65-2422RK-05 H S Transmitter • 11... - Page 12 11. 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 that can be used to ground the cable’s drain wire. 12 • 65-2422RK-05 H S Transmitter...
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Page 13: Startup
The procedure below describes applying zero emission air, usually called zero air, using a calibration kit that includes a calibration cup, calibration gas, sample tubing, and a fixed flow regulator with an on/off knob. RKI Instruments, Inc. recommends using a 0.5 LPM (liters per minute) fixed flow regulator. -
Page 14: Maintenance
The controller indicates a fail condition. Probable causes • The transmitter wiring is disconnected or misconnected. • The transmitter’s zero reading is low enough to cause a fail condition. • The transmitter is malfunctioning. 14 • 65-2422RK-05 H S Transmitter... -
Page 15: Replacing Components Of The H S Transmitter
1. Verify that the calibration cylinder contains an adequate supply of a fresh test sample. 2. If the calibration/response difficulties continue, replace the H S sensor as described later in this section. 3. If the calibration/response difficulties continue, contact RKI Instruments, Inc. for further instruction. Replacing Components of the H S Transmitter This section includes procedure to replace the H S sensor and amplifier. - Page 16 Table 2 and Figure 3. Table 2: Reconnecting the H S Amplifier to a Controller Amplifier Interconnect Controller Transmitter Terminal Strip Terminal Strip (typical) 4/20 FB 4 -20 (FB) 24V + + V (11 - 30 VDC) 16 • 65-2422RK-05 H S Transmitter...
- Page 17 S Detector to the Amplifier Amplifier Interconnect S Detector Lead Terminal Strip Black TOXIC BK TOXIC RD 8. Reinstall the junction box cover. 9. Turn on or plug in incoming power at the controller. 65-2422RK-05 H S Transmitter • 17...
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Page 18: Calibration Frequency
It describes the test using a calibration kit that includes a calibration cup, calibration gas, sample tubing, and a fixed flow regulator with an on/off knob. RKI Instruments, Inc. recommends using a 0.5 LPM (liters per minute) fixed flow regulator. -
Page 19: Setting The Zero Reading
5. If necessary, use the span pot on the amplifier to adjust the reading to match the correct response reading. 6. Turn the regulator on/off knob clockwise to close it. 7. Unscrew the regulator from the calibration cylinder. 8. Unscrew the calibration cup from the detector. 65-2422RK-05 H S Transmitter • 19... -
Page 20: Returning To Normal Operation
81-1051RK Regulator with gauge and knob, 0.5 LPM, for 34 liter aluminum calibration cylinders and 58 liter and 103 liter steel calibration cylinders (cylinders with internal thread) 81-1117RK Calibration cup ES-1537-H2S S replacement sensor 20 • 65-2422RK-05 H S Transmitter...
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