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Summary of Contents for RKI Instruments 65-2397SS
- Page 1 65-2397SS Transmitter Operator’s Manual Part Number: 71-0442 Revision: 0 Released: 9/1/20 RKI Instruments, Inc. www.rkiinstruments.com...
- Page 2 Frequency of calibration depends upon the type of use you have and the sensor types. Typical calibration frequencies for most applications are between 6 and 12 months, but can be required more often or less often based on your usage. 2 • 65-2397SS CO 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 ..............22 4 • 65-2397SS CO... -
Page 5: Overview
WARNING: When using the 65-2397SS, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65-2397SS and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 65-2397SS as described in this manual. -
Page 6: Description
This section describes the components of the CO transmitter. The transmitter is a 4 - 20 mA type detector head. It consists of the CO detector, amplifier, and junction box. Amplifier J-Box IR CO2 Detector Figure 1: CO Transmitter Component Location 6 • 65-2397SS CO Transmitter... -
Page 7: Co 2 Detector
A cap gasket seals the interface between the housing and cap. Plug-In CO Sensor The plug-in sensor is secured in the detector assembly by the housing cap. The sensor produces a millivolt output that corresponds to the detection range of the transmitter. 65-2397SS CO Transmitter • 7... -
Page 8: Amplifier
Turn the adjustment screw clockwise to increase the zero output and counterclockwise to decrease the zero output. 8 • 65-2397SS CO Transmitter... -
Page 9: Junction Box
The detector and amplifier are factory installed in the junction box. Use the cover on the front of the junction box to access the interior of 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. 65-2397SS CO Transmitter • 9... -
Page 10: Installation
.45 Slot, 2X 6.63 max J-Box IR CO2 Detector 1.10 Figure 4: Mounting the CO Transmitter 2. At the monitoring site you select, hang or mount the junction box with the detector facing down (see Figure 4). 10 • 65-2397SS CO Transmitter... -
Page 11: Wiring The Co 2 Transmitter
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. 65-2397SS CO Transmitter • 11... - Page 12 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. 12 • 65-2397SS CO Transmitter...
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Page 13: Startup
4. Screw the calibration cup onto the bottom of the IR CO detector. 5. Screw the regulator into the 100% nitrogen calibration cylinder. 6. Use the calibration kit sample tubing to connect the regulator to the calibration cup. 65-2397SS CO Transmitter • 13... -
Page 14: Maintenance
Investigate significant changes in the display reading. Biannually Calibrate the CO transmitter as described in “Calibration” on page 20 of this manual. 14 • 65-2397SS CO Transmitter... -
Page 15: Troubleshooting
6 months. section. Some applications 5. If the calibration/response may require a more difficulties continue, contact RKI frequent calibration for further instruction. schedule. 65-2397SS CO Transmitter • 15... -
Page 16: Replacing Components Of The Co 2 Transmitter
6. Make sure the cap gasket is in place and screw the detector housing cap back onto the detector housing body. 7. Turn on power to the controller. 8. Turn on the controller and place it into normal operation. 16 • 65-2397SS CO Transmitter... - Page 17 LEL “R” White LEL “W” Green LEL “G” Black LEL “B” 9. Reinstall the detector terminal strip into its socket. 10. Reinstall the junction box cover. 11. Turn on or plug in power to the controller. 65-2397SS CO Transmitter • 17...
- Page 18 Table 4 and Table 5 below. Table 4:Reconnecting the Amplifier to the Controller Controller Amplifier Controller Transmitter Terminal Terminal Strip Strip (typical) PWR/SIG “-” - (DC -) PWR/SIG “S” S (4 - 20 mA In) PWR/SIG “+” + 24V 18 • 65-2397SS CO Transmitter...
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Page 19: Calibration Frequency
6 months is adequate for most infrared CO transmitter applications. Unless experience in a particular application dictates otherwise, RKI Instruments, Inc. recommends a calibration frequency of every 6 months. If an application is not very demanding, for example detection in a clean, temperature controlled environment where calibration adjustments are minimal at calibration, then a calibration frequency of every 9 to 12 months is adequate. -
Page 20: Calibration
4. Allow the gas to flow for one minute and verify a reading of 100 mV (±2 mV). If necessary, use the zero pot on the amplifier to adjust the reading to 100 mV (±2 mV). 5. Turn the regulator’s on/off knob clockwise to close the regulator. 20 • 65-2397SS CO Transmitter... -
Page 21: Setting The Response Reading
The 0-20% volume, 0-50% volume, and 0-100% volume detectors will not display a reading in fresh air because their ranges are too large. 6. Store the components of the calibration kit in a safe and convenient place. 65-2397SS CO Transmitter • 21... -
Page 22: Parts List
Calibration cylinder, 2000 ppm CO , 34 liter steel 81-0071RK-01 Calibration cylinder, 5000 ppm CO , 34 liter steel 81-0071RK-03 Calibration cylinder, 5000 ppm CO , 34 liter steel 81-0072RK-01 Calibration cylinder, 2.5% CO , 34 liter steel 22 • 65-2397SS CO Transmitter... - Page 23 34 liter steel calibration cylinders (cylinders with external threads) 81-1051RK Regulator, with gauge and knob, 0.5 liter/minute continuous flow, for 34 liter alu- minum/58 liter/103 liter calibration cylinders (cylinders with internal threads) 81-1117RK Calibration cup 82-0006RK Pot adjust screwdriver, for calibration 65-2397SS CO Transmitter • 23...
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