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65-2482RK Multi Point Detector Operator’s Manual Part Number: 71-0205RK Revision: 0 Released: 5/17/11 RKI Instruments, Inc. www.rkiinstruments.com...
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Typical calibration frequencies for most applications are between 3 and 6 months, but can be required more often or less often based on your usage. 65-2482RK Multi Point 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.
Overview This manual describes the 65-2482RK multi point direct connect detector. This manual also describes how to install, start up, maintain, and calibrate the detector when it is used with a gas monitoring controller. A parts list at the end of this manual lists replacement parts and accessories for the detector.
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WARNING: When using the 65-2482RK, you must follow the instructions and warnings in this manual to assure proper and safe operation of the 65-2482RK and to minimize the risk of personal injury. Be sure to maintain and periodically calibrate the 65-2482RK as described in this manual.
Four color coded leads, red, white, green, and black, extend from the other end of the detector. The leads allow you to connect the detector to the terminal block. 65-2482RK Multi Point Detector • 3...
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The plug-in sensor is secured in the detector assembly by the housing cap. It has two pins that mate with the sockets in the detector housing body. Through a series of chemical and electrical reactions, the sensor produces an electrical output that corresponds to the detection range of the transmitter. 4 • 65-2482RK Multi Point Detector...
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The disc-shaped charcoal filter is secured to the face of the CO sensor with a rubber boot. The charcoal filter prevents interference gases (hydrogen sulfide [H S] and certain hydrocarbons) from producing false CO readings. 65-2482RK Multi Point Detector • 5...
Use the cover on the front of the junction box to access the interior of the junction box. The detectors and terminal strip are factory installed in the junction box. 6 • 65-2482RK Multi Point Detector...
.20 DIA X .45 Slot,(2X) ,mounting 7.75 3/4 NPT HUBS (4X) 3.15 2.40 3.11 1.25 8.24 max. 3.00 3.00 1.10 LEL(CH4 IR) Oxygen Detector Detector Detector Figure 5: Outline & Mounting Dimensions 65-2482RK-01 65-2482RK Multi Point Detector • 7...
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.20 DIA X .45 Slot,(2X) ,mounting 7.75 3/4 NPT HUBS (4X) 3.15 2.40 3.11 1.25 8.24 max. 3.00 3.00 1.10 LEL(CH4 IR) Oxygen Detector Detector Detector Figure 6: Outline and Mounting Dimensions 65-2482RK-02 8 • 65-2482RK Multi Point Detector...
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.20 DIA X .45 Slot,(2X) ,mounting 7.63 3/4 NPT HUBS (4X) 3.15 2.40 3.11 max. 1.25 5.05 max. 3.10 max. 3.00 3.00 1.10 LEL(CH4 IR) 3/4" Conduit Detector Detector Plug Figure 7: Outline and Mounting Dimensions 65-2482RK-03 65-2482RK Multi Point Detector • 9...
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.20 DIA X .45 Slot,(2X) ,mounting 7.63 3/4 NPT HUBS (4X) 3.15 2.40 3.11 1.25 8.24 max. 3.00 3.00 1.10 LEL(CH4 IR) 3/4" Conduit Detector Detector Plug Figure 8: Outline and Mounting Dimensions 65-2482RK-04 10 • 65-2482RK Multi Point Detector...
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.20 DIA X .45 Slot,(2X) ,mounting 7.63 3/4 NPT HUBS (4X) 3.15 2.40 3.11 1.25 8.24 max. 3/4" Conduit Plug LEL(CH4 IR) Detector 3.00 3.00 1.10 Oxygen Detector Figure 9: Outline and Mounting Dimensions 65-2482RK-05 65-2482RK Multi Point Detector • 11...
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Detector Detector Detector Figure 10: Outline and Mounting Dimensions 65-2482RK-06 At the mounting site you select, use #10 screws to mount the detector to a vertical surface. CAUTION: Mount the multi-point detector with the detectors facing down (see Figures 5-10).
Route the cable or wires leading from the multi-point detector through one of the conduit hubs at the controller housing. Use appropriate conduit fittings and construction technique for the environmental rating of the controller. RKI controllers are typically rated NEMA 4X.
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Terminal Stri p Green White Black H2S Detector Oxygen Detector Wires Wires Black Green White LEL(CH4 IR) Detector W ires LEL(CH4 IR) Detector Oxygen Detector H2S Detector Figure 11: Wiring the 65-2482RK-01 to a Controller 14 • 65-2482RK Multi Point Detector...
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Terminal Stri p Green White Black CO Detector Oxygen Detector Wires Wires Black Green White LEL(CH4 IR) Detector W ires LEL(CH4 IR) Detector Oxygen Detector CO Detector Figure 12: Wiring a 65-2482RK-02 to a Controller 65-2482RK Multi Point Detector • 15...
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Controller L EL Terminals Green Black Terminal Stri p Black H2S Detector Wires Black Green White LEL(CH4 IR) Detector W ires LEL(CH4 IR) Detector H2S Detector Figure 13: Wiring the 65-2482RK-03 to a Controller 16 • 65-2482RK Multi Point Detector...
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Controller L EL Terminals Green Black Terminal Stri p Black CO Detector Wires Black Green White LEL(CH4 IR) Detector W ires LEL(CH4 IR) Detector CO Detector Figure 14: Wiring the 65-2482RK-04 to a Controller 65-2482RK Multi Point Detector • 17...
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Green Black Controller OXY White Terminals Green Terminal Strip White Green Oxygen Detector Wires Black Green White LEL(CH4 IR) Detector Wires LEL(CH4 IR) Detector Oxygen Detector Figure 15: Wiring the 65-2482RK-05 to a Controller 18 • 65-2482RK Multi Point Detector...
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H2S Detector Figure 16: Wiring the 65-2482RK-06 to a Controller Connect the cable’s drain wire to an available chassis ground at the controller. RKI controllers typically have a ground stud that can be used to ground the cable’s drain wire.
If the display reading is not the appropriate fresh air reading, continue with step 3. Perform a zeroing operation at the controller. See the controller operator’s manual for directions. 20 • 65-2482RK Multi Point Detector...
This procedure describes a test to verify that each detector in the multi-point detector responds properly to its target gas. It describes a test using a fixed flow regulator with an on/off knob. RKI Instruments, Inc. recommends using a 0.5 LPM (liters per minute) fixed flow regulator.
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When the controller display reading falls below the alarm setpoints, return the controller to normal operation. Store the components of the calibration kit in a safe place. Quarterly Calibrate the multi-point detector as described in the Calibration section of this manual. 22 • 65-2482RK Multi Point Detector...
1. Replace charcoal filter in the CO reading that cannot detector is saturated detector. Upscale be verified. and no longer Readings or 2. If difficulties continue, contact RKI for scrubbing out Alarms • Alarms occur at the further instructions. interfering gases. controller that cannot be explained.
Unscrew the detector housing cap from the detector housing body. Make sure not to lose the cap gasket. Unplug and remove the oxygen sensor. Carefully plug the replacement sensor into the socket pattern that is located in the 24 • 65-2482RK Multi Point Detector...
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10. Turn on the controller. CAUTION: Allow the replacement detector to warm up for 5 minutes before you continue with the next step. 11. Calibrate the replacement detector as described in “Calibration, O Detector” on page 31. 65-2482RK Multi Point Detector • 25...
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Carefully plug the replacement sensor into the four-socket pattern that is located in the detector housing. 10. Make sure the cap gasket is in place and screw the detector housing cap back onto the detector housing body. 26 • 65-2482RK Multi Point Detector...
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Unscrew the detector housing cap from the detector housing body. Make sure not to lose the cap gasket. Unplug and remove the H S sensor. Carefully plug the replacement sensor into the socket pattern that is located in the 65-2482RK Multi Point Detector • 27...
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Although there is no particular calibration frequency that is correct for all applications, a calibration frequency of every 3 months is adequate for most multi-point detector applications. Unless experience in a particular application dictates otherwise, RKI Instruments, Inc. recommends a calibration frequency of every 3 months for the oxygen,...
RKI Instruments, Inc. recommends using a 0.5 LPM (liters per minute) fixed flow regulator. To properly calibrate the multi-point detector, you must calibrate each connected detector.
Verify that the controller display reading decreases and stabilizes at: • 0 %LEL for CH • 0 ppm for CO or H Store the components of the calibration kit in a safe and convenient place. 30 • 65-2482RK Multi Point Detector...
Put the controller into its calibration program. See the controller operator’s manual for instructions to enter the calibration program. NOTE: RKI controllers have a peak hold feature for fresh air adjustment and a minimum hold feature for zero adjustment. Because of this, the instructions call for turning off the gas to a detector before making adjustments.
NOTE: If you do not allow the gas reading to rise above the alarm points, then unwanted alarms may occur. Verify that the controller display reading increases and stabilizes at 20.9% oxygen. Store the components of the calibration kit in a safe and convenient place. 32 • 65-2482RK Multi Point Detector...
Multi-point detector assembly, LEL (IR CH S/CO 65-2514RK Oxygen replacement detector assembly (includes sensor) 71-0205RK 65-2482RK Multi Point Detector Operator’s Manual (this document) 81-0012RK Calibration cylinder, 50% LEL methane in air, 17 liter steel 81-0012RK-01 Calibration cylinder, 50% LEL methane in air, 34 liter steel...
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Regulator with gauge and knob, 0.5 LPM , for 34AL/58/103 liter calibration cylinders 81-1103RK Calibration cup for IR LEL detector 81-1117RK Calibration cup for CO, H S, and O detectors ES-1531-CO CO replacement plug-in sensor ES-1537-H2S S replacement plug-in sensor 34 • 65-2482RK Multi Point Detector...
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