61-1006RK/61-0192RK Combustible Gas Detector Operator’s Manual Part Number: 71-0228RK Revision: P1 Released: 9/26/11 www.rkiinstruments.
WARNING Read and understand this instruction manual before operating detector. Improper use of the detector could result in bodily harm or death. Periodic calibration and maintenance of the detector is essential for proper operation and correct readings. Please calibrate and maintain this detector regularly! Frequency of calibration depends upon the type of use you have and the sensor types.
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.
Table of Contents Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 IR LEL Detector. . . . . . . . . . . . . . . . . . . . . .
Overview This manual describes the 61-1006RK combustible gas detector. This manual also describes how to install, start up, maintain, and calibrate the detector when used with a gas monitoring controller. A parts list at the end of this manual lists replacement parts and accessories for the combustible gas detector. The 61-1006RK combustible gas detector includes a junction box.
Description The 61-1006RK combustible gas detector is calibrated to methane. The detector is an infrared type of detector which has some advantages over a catalytic type of combustible detector. The infrared detector will generally have a longer service life than a catalytic detector, it will require calibration less often, and it can detect combustible gas even if there is no oxygen in the sample which allows detection of combustible gas in an inert atmosphere.
Installation This section describes procedures to mount the combustible gas detector in the monitoring environment and wire it to a controller. Mounting the Combustible Gas Detector 1. Select a mounting site that is representative of the monitoring environment. Consider the following when you select the mounting site. • Select a site where the detector is not likely to be bumped or disturbed. Make sure there is sufficient room to perform start-up, maintenance, and calibration procedures.
Wiring the Combustible Gas Detector to a Controller WARNING: Always verify that the power to the controller is off before you make wiring connections. 1. Turn off the controller. 2. Turn off or unplug power to the controller. 3. If the detector is mounted remotely from a controller using the junction box, proceed to step 4. If the detector is mounted directly to a controller, it is normally factory wired.
Cable Shield Red White Green Black Controller LEL Detector Terminals Controller Housing Red Green Black White CH4 IR Detector Figure 2: Wiring the Combustible Gas Detector to a Controller 61-1006RK/61-0192RK Combustible Gas Detector • 5
Start Up This section describes procedures to start up the combustible gas detector and place the detector into normal operation. Introducing Incoming Power 1. Complete the installation procedures described earlier in this manual. 2. Verify that the power wiring to the controller is correct and secure. Refer to the controller operator’s manual. 3. Turn on or plug in power to the controller, then turn on the controller. 4. Verify that the controller is on and operating properly.
Maintenance This section describes maintenance procedures. It includes preventive maintenance, troubleshooting, and component replacement procedures. Preventive Maintenance This section describes a preventive maintenance schedule to ensure the optimum performance of the combustible gas detector. It includes daily, monthly, and biannual procedures. Daily Verify a display reading of 0% LEL at the controller. Investigate significant changes in the reading.
NOTE: If the reading is not within ± 20% of the gas concentration, calibrate the detector as described in “Calibration” on page 9. 4. Turn the on/off knob clockwise to close the regulator. 5. Unscrew the regulator from the calibration cylinder. 6. Unscrew the calibration cup from the detector. 7. When the display reading falls below the alarm setpoints, return the controller to normal operation or enable external alarms. 8. Store the components of the calibration kit in a safe place.
Replacing the IR LEL Detector 1. Turn off the controller. 2. Turn off power to the controller. 3. Remove the junction box cover. 4. Disconnect the detector leads from the terminal block inside the junction box. Note the position of the color-coded leads as you remove them. 5. Unscrew the detector from the junction box. 6. Guide the detector leads of the replacement detector through the bottom conduit hub of the junction box, then screw the mounting threads of the detector into the conduit hub.
Preparing for Calibration 1. Screw the calibration cup onto the detector. 2. Screw the regulator into the calibration cylinder. 3. Place the controller into its calibration program. Setting the Zero Reading CAUTION: If you suspect the monitoring environment is not free of combustible vapors, use the calibration kit and a zero air calibration cylinder to introduce “fresh air” to the detector and verify an accurate zero setting. 1. Verify that the detector is in a fresh air environment. 2.
Parts List Table 3 lists replacement parts and accessories for the 61-1006RK combustible gas detector. Table 3: Parts List Part Number Description 18-0400RK-01 Junction box with spacers 61-0192RK-CH4 Methane infrared LEL detector 71-0228RK 61-1006RK/61-0192RK Combustible Gas Detector Operator’s Manual (this document) 81-0013RK-01 Calibration cylinder (50% volume Methane in air, 34 liter) 81-0076RK-01 Zero air calibration cylinder (34 liter) 81-1050RK Regulator, 0.
