Summary of Contents for RKI Instruments 65-2427-05-01
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65-2427-05-01 Hydrogen Sulfide Detector Operator’s Manual Part Number: 71-0454 Revision: 0 Released: 6/15/20 RKI Instruments, Inc. www.rkiinstruments.com...
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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 • 65-2427-05-01 H S Detector...
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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.
WARNING: When using the 65-2427-05-01, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65-2427-05-01 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 65-2427-05-01 as described in this manual.
Description This section describes the components of the 65-2427-05-01 H S detector. The 65-2427-05- 01 consists of the 65-2428-01 H S detector and junction box. Terminal Block Rubber Spacer, Black J-Box H2S Detector Figure 1: H S Detector Component Location 6 •...
Plug-In Sensor The sensor is secured within the sensor housing by four pins. Through a series of chemical and electrical reactions, the sensor produces an electrical output that corresponds to the 65-2427-05-01 H S Detector • 7...
• 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 detector at approximately breathing level. 8 • 65-2427-05-01 H S Detector...
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1-1/2 - 20 Thread for Calibration Cup Figure 3: Outline & Mounting Dimensions 2. At the monitoring site you select, hang or mount the junction box with the detector facing down (see Figure 3). 65-2427-05-01 H S Detector • 9...
RKI controllers are typically rated NEMA 4X. CAUTION:Do not route power and detector wiring through the same conduit hub. The power cable may disrupt the transmission of the detector signal to the controller. 10 • 65-2427-05-01 H S Detector...
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9. If using shielded cable, connect the cable’s drain wire to an available chassis ground at the controller. RKI controllers typically have a ground stud that is a convenient grounding location. 10. Reinstall the junction box cover. 65-2427-05-01 H S Detector • 11...
S, start up is complete. The detector is in normal operation. If the display reading is not 0 ppm H S, continue with step 3. 3. Perform a zeroing operation at the controller. See the controller operator’s manual for directions. 12 • 65-2427-05-01 H S Detector...
5. If the fail condition continues, condition. contact RKI for further instruction. • The detector is malfunctioning. 65-2427-05-01 H S Detector • 13...
6. Remove the replacement sensor from its packaging and remove the wire jumper. This wire jumper is installed on the sensor pins for shipment or storage but must be removed for the sensor to operate properly when installed in a detector. 14 • 65-2427-05-01 H S Detector...
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7. Connect the detector leads to the terminal block the same way the old detector was wired. See the controller operator’s manual and the controller’s detector head specification sheet to verify the connections are correct. 8. Reinstall the junction box cover. 65-2427-05-01 H S Detector • 15...
It describes calibration 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.
NOTE: For convenience, leave regulator and calibration cup connected by the sample tubing. Returning to Normal Operation 1. Allow about 45 seconds for the gas reading to decrease below the alarm points and then return the controller to normal operation. 65-2427-05-01 H S Detector • 17...
Regulator with gauge and knob, 0.5 LPM, for 17 liter and 34 liter steel calibra- tion cylinders (cylinders with external threads) 81-1051RK Regulator with gauge and knob, 0.5 LPM, for 34 liter aluminum, 58 liter, and 103 liter calibration cylinders (cylinders with internal threads) 81-1117RK Calibration cup 18 • 65-2427-05-01 H S Detector...
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