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Summary of Contents for RKI Instruments 65-2443
- Page 1 65-2443 PPM Hydrogen Transmitter Operator’s Manual Part Number: 71-0542 Revision: P1 Released: 12/29/20 RKI Instruments, Inc. www.rkiinstruments.com...
- Page 2 Typical calibration frequen- cies for most applications are between 6 and 12 months, but can be required more often or less often based on your usage. 2 • 65-2443 PPM Hydrogen 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 the 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 ..............18 4 • 65-2443 PPM Hydrogen Transmitter... -
Page 5: Overview
WARNING: When using the 65-2443, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65-2443 and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 65-2443 as described in this manual. -
Page 6: Description
This section describes the ppm hydrogen transmitter’s components. It is a 4 to 20 mA type detector head. It consists of the ppm hydrogen detector, amplifier, and junction box. Amplifier S PA N J-Box Reducing Bushing, Hydrogen Detector 3/4 NPT t o 1/2 NPT Figure 1: Component Location 6 • 65-2443 PPM Hydrogen Transmitter... -
Page 7: Ppm Hydrogen Detector
Use the detector 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. 65-2443 PPM Hydrogen Transmitter • 7... -
Page 8: Junction Box
NPT conduit hub to connect wiring from the amplifier to the controller. 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. 8 • 65-2443 PPM Hydrogen Transmitter... -
Page 9: Installation
2. At the monitoring site you select, hang or mount the junction box with the detector facing down (see Figure 3). 65-2443 PPM Hydrogen Transmitter • 9... -
Page 10: Wiring The Ppm Hydrogen Transmitter
10. Route the cable or wires leading from the ppm hydrogen transmitter through one of the conduit hubs at the controller housing. CAUTION: Do not route power and transmitter wiring through the same controller conduit hub. The power cable may disrupt the transmission of the transmitter signal to the controller. 10 • 65-2443 PPM Hydrogen Transmitter... - Page 11 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 that can be used to ground the cable’s drain wire. 65-2443 PPM Hydrogen Transmitter • 11...
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Page 12: Startup
5 days after startup before calibrating the transmitter. A burn-in period of 7 days is recommended. See page 16 for calibration instructions. Setting the Zero Signal The detector’s zero setting is controlled by electronics and is not user-adjustable. 12 • 65-2443 PPM Hydrogen Transmitter... -
Page 13: Maintenance
4. If the calibration/response 6 months. difficulties continue, contact RKI for further instruction. Some applications may require a more frequent calibration schedule. 65-2443 PPM Hydrogen Transmitter • 13... -
Page 14: Replacing Components Of The Ppm Hydrogen Transmitter
14. Allow the replacement detector to burn-in for at least 5 days before you continue with the next step. A burn-in period of 7 days is recommended. 15. After the burn-in period, calibrate the transmitter as described on page 16. 14 • 65-2443 PPM Hydrogen Transmitter... - Page 15 Be sure to make arrangements so that this does not cause unwanted alarms. 9. Turn on power to the controller. 10. Turn on the controller and place it into normal operation. 65-2443 PPM Hydrogen Transmitter • 15...
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Page 16: Calibration Frequency
Although there is no particular calibration frequency that is correct for all ppm hydrogen transmitter applications, a calibration frequency of every 6 to 12 months is adequate for most applications. Unless experience in a particular application dictates otherwise, RKI Instruments, Inc. recommends a calibration frequency of every 6 months. -
Page 17: Preparing For Calibration
4. Verify a reading of 300 mV (±2 mV) on the voltmeter. If necessary, use the linear pot on the amplifier to adjust the reading. 5. Turn the regulator knob clockwise to close the regulator. 6. Unscrew the regulator from the 1,000 ppm H calibration cylinder. 65-2443 PPM Hydrogen Transmitter • 17... -
Page 18: Returning To Normal Operation
PPM hydrogen detector 65-2443 PPM hydrogen transmitter (includes detector and amplifier) 71-0542 65-2443 PPM Hydrogen Transmitter Operator’s Manual (this document) 81-0000RK-01 Calibration cylinder, 1,000 ppm hydrogen in air, 34 liter steel 81-0000RK-03 Calibration cylinder, 1,000 ppm hydrogen in air, 103 liter...
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