61-1001RK Hydrogen Detector Operator’s Manual Part Number: 71-0194RK Revision: B Released: 4/12/11 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. warranties 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 NC-6205-01 Hydrogen Detector . . . . . . . . . . . . . . .
Overview This manual describes the 61-1001RK hydrogen detector (internal amplifier type). 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 hydrogen detector. The 61-1001RK hydrogen detector includes the NC-6205-01 hydrogen detector and a junction box.
Description This section describes the components of the NC-6205-01 and 61-1001RK detectors. The 61-1001RK includes the NC-6205-01 hydrogen detector and a junction box. A four point terminal strip is provided inside the junction box for detector connections. The NC-620501 does not include a junction box.
The bottom conduit hub includes a 3/4 in. x 1/2 in. reducer that allows you to screw the detector into the hub. The terminal block within the junction box facilitates the wiring process. A cover on the front of the junction box allows access to the interior of the junction box. Installation This section describes procedures to mount the hydrogen detector in the monitoring environment and wire the detector to a controller.
2. At the mounting site you select, hang or mount the junction box with the detector facing down (see Figure 2). Wiring the Hydrogen 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 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.
Controller LEL Detector Terminals RED WH ITE GREEN BLACK J-Box Terminal Strip Black Green Detector Wires W hite Red H2 LEL Detector Figure 3: Wiring the Hydrogen Detector to a Controller Start Up This section describes procedures to start up the hydrogen 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.
3. Turn on power to the controller. 4. Turn on the controller. 5. Verify that the controller is on and operating properly. Refer to the controller operator’s manual. CAUTION: Allow the detector to warm up for 5 minutes before you continue with the next section, “Setting the Zero Reading”. Setting the Zero Reading WARNING: Do not remove the junction box cover while the circuits are energized unless the area is determined to be non-hazardous. Keep the junction box cover tightly closed during operation.
NOTE: Performing a response test on the hydrogen detector may cause alarms. Be sure to put the controller into its calibration program or disable external alarms before performing this test. NOTE: The following procedure assumes the use of a calibration kit which includes a calibration gas cylinder, a 0.5 LPM fixed flow regulator with an on/off knob, a calibration cup for the detector, and a length of sample tubing. Preparing for the response test 1.
Troubleshooting The troubleshooting guide describes symptoms, probable causes, and recommended action for problems you may encounter with the hydrogen detector. NOTE: This troubleshooting guide describes detector problems only. See the controller operator’s manual for problems you may encounter with the controller. Table 2:Troubleshooting the Hydrogen Detector Condition Symptom(s) Probable Causes Recommended Action Fail Condition • Controller indicates a fail condition.
hub or junction box conduit hub, then screw the mounting threads of the detector into the hub. If necessary for environmental conditions, apply thread sealant or teflon tape to the hub and/or detector threads to seal them. 7. If the detector is installed directly on a controller, connect the detector leads to the appropriate detector terminal strip terminals. See Figure 3 for wiring to a generic controller.
NOTE: The following procedure assumes the use of a calibration kit which includes a calibration gas cylinder, a 0.5 LPM fixed flow regulator with an on/off knob, a calibration cup for the detector, and a short piece of sample tubing to connect the regulator to the calibration cup. Preparing for Calibration 1. Screw the calibration cup onto the bottom of the detector. 2. Screw the regulator into the calibration cylinder. 3.
NOTE: If you do not allow the gas reading to decrease below the alarm points, then unwanted alarms may occur. 3. Verify that the controller display reading decreases and stabilizes at 0 %LEL. 4. Store the components of the calibration kit in a safe and convenient place. Parts List Table 3 lists replacement parts and accessories for the 61-1001RK hydrogen detector.
