65-2502RK/65-2510RK Oxygen Detector Operator’s Manual Part Number: 71-0074RK Revision: A Released: 3/1/11 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 Oxygen Detector . . . . . . . . . . . . . . . . . . . . . .
Overview This manual describes the 65-2502RK oxygen 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 oxygen detector. The 65-2502RK oxygen detector includes a junction box.
Description This section describes the components of the oxygen detector. The detector includes the oxygen cell, detector housing, and detector connector. This section also describes the junction box. Oxygen Detector The sensing components of the detector are encapsulated within a conduit mounting black anodized aluminum housing. Through a series of chemical and electronic reactions, the detector produces a millivolt output that is proportional to the detection range.
2.70 3/4 NPT Female 0.38 .75 3.65 7.6 max Spacer, 3X J-Box Oxygen Detector Figure 1: Mounting the Oxygen Detector 2. At the mounting site you select, hang or mount the junction box with the detector facing down (see Figure 1). Wiring the Oxygen 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 incoming power to the controller. 3.
6. Connect the wires to the terminals using the terminal block. CAUTION: If using shielded cable, leave the shield drain wire insulated and disconnected at the detector. You will connect the opposite end of the cable’s drain wire at the controller. 7. Secure the junction box cover to the junction box. 8. Route the cable or wires in conduit leading from the detector through one of the conduit hubs at the controller.
Start Up This section describes procedures to start up the oxygen 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 instruction manual. 3. Turn on or plug in the incoming 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 oxygen detector. It includes daily, monthly, and quarterly procedures. Daily Verify a display reading of 20.9% oxygen at the controller. Investigate significant changes in the reading.
Troubleshooting The troubleshooting guide describes symptoms, probable causes, and recommended action for problems you may encounter with the oxygen detector. NOTE: This troubleshooting guide describes detector problems only. See the controller instruction manual for problems you may encounter with the controller. Table 2:Troubleshooting the Oxygen Detector Condition Symptom(s) Probable Causes Recommended Action Fail Condition • Controller indicates a fail condition.
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 2 for wiring to a generic controller. See the controller operator’s manual and the controller’s detector head specification sheet for the 65-2510RK detector for wiring specific to your controller.
1. Screw the calibration cup onto the detector housing. 2. Screw the regulator into the zero air calibration cylinder. Make sure the regulator is off. It is off when the on/off knob is turned all the way clockwise. 3. Use the sample tubing to connect the regulator to the calibration cup. NOTE: If you can verify that the oxygen detector is in a fresh air environment, you do not need to apply zero air to the detector before adjusting the fresh air reading. 4.
NOTE: If you do not allow the oxygen reading to increase above the decreasing alarm point, then unwanted alarms may occur. 2. Verify that the controller display reading increases and stabilizes at 20.9% oxygen. 3. Store the components of the calibration kit in a safe and convenient place. Parts List Table 3 lists replacement parts and accessories for the oxygen detector. Table 3: Parts List Part Number Description 06-1248RK Sample tubing (3/16 in. x 5/16 in.
