RKI Instruments 61-1001RK-05 - Manual (Page 10)

6 • 61-1001RK-05 Combustible Gas Detector
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.
CAUTION: If you suspect the presence of hydrogen in the monitoring environment, use the zero
air calibration cylinder to introduce “fresh air” to the detector and verify an accurate
zero reading.
1. Verify that the detector is in a fresh air environment (environment known to be free of
hydrogen and of normal oxygen concentration, 20.9%).
2. Verify a reading of 0% LEL at the controller.
If the display reading is 0% LEL, start up is complete. The hydrogen detector is in
normal operation. If the display reading is not 0% LEL, continue with step 3.
3. Perform a zeroing operation at the controller. See the controller operator’s manual for
directions.
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 hydrogen detector. It includes daily, monthly, and quarterly
procedures.
Daily
Verify a display reading of 0% LEL at the controller. Investigate significant changes in the
reading.
Monthly
This procedure describes a test to verify that the hydrogen detector responds properly to
the target gas.
WARNING: The controller is not an active gas monitoring device during the response
test procedure.