RKI Instruments 65-2497RK - Manual (Page 10)

6 • 65-2494RK/65-2497RK Oxygen Detector
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 operator’s manual.
3. Turn on or plug in the incoming power, then turn on the controller.
4. 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 Fresh Air Reading”.
Setting the Fresh Air Reading
CAUTION: If you suspect the monitoring environment is not a fresh air environment, use the
zero air calibration cylinder to introduce “fresh air” to the detector and verify an
accurate fresh air reading.
1. Verify that the oxygen detector is in a fresh air environment (environment known to
be free of toxic and combustible gases, and of normal oxygen content, 20.9%).
2. Verify a reading of 20.9% oxygen at the controller.
If the display reading is 20.9% oxygen, start up is complete. The oxygen detector is in
normal operation. If the display reading is not 20.9% oxygen, continue with step 3.
3. Perform a fresh air adjustment operation at the controller. See the controller
operator’s manual for instructions.
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 display reading.
Monthly
This procedure describes a test to verify that the oxygen detector responds properly to
oxygen deficiency.