RKI Instruments Beacon 200 Rig Monitor, LEL/H2S - Manual (Page 49)

Beacon 200 Rig Monitor Operator’s Manual • 44
12.Place the Rig Monitor’s power switch in the ON position, then verify
that the PILOT light is on.
CAUTION: Allow the replacement detector to warm up for 5 minutes
before you continue with the next step.
13.Calibrate the replacement detector as described in the Calibration
section of this manual.
Preventive Maintenance
This section describes a preventive maintenance schedule to ensure the
optimum performance of the LEL and H
2
S detectors. It includes daily,
monthly, and quarterly procedures.
Daily
Verify a display reading of 0 %LEL and 0 PPM H
2
S at the controller.
Investigate significant changes in the display reading.
Monthly
This procedure describes a test to verify that the LEL and H
2
S detectors
respond properly to their target gas. It describes a test using a fixed flow
regulator with an on/off knob. RKI Instruments, Inc. recommends using a
0.5 LPM (liters per minute) fixed flow regulator.
NOTE: Performing a response test on the LEL and H
2
S detectors may
cause alarms. Be sure to disable external alarms or put the Rig
Monitor into its calibration program before performing this test.
Preparing for the response test
1. While in normal operation, press and hold the UP/YES button for 5
seconds and press the UP/YES button again when asked if you would
like to enter Calibration Mode.
2. Verify that the Rig Monitor display reading is 0 %LEL and 0 ppm H
2
S.
3. If the display reading is not 0 %LEL or 0 ppm H
2
S, set the zero reading
of the detector as described in the Start Up section of this manual, then
continue this procedure.
4. Screw the regulator into the LEL calibration cylinder.