RKI Instruments Beacon 110 Rig Monitor - Manual (Page 37)

Beacon 110 Rig Monitor Operator’s Manual 32
Preventive Maintenance
This section describes a preventive maintenance schedule to ensure the optimum performance of
the H
2
S detector. It includes daily, monthly, and quarterly procedures.
Daily
Verify a display reading of 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 H
2
S detector responds properly to hydrogen
sulfide. 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 H
2
S detector may cause alarms. Be sure to put the Rig
Monitor into its calibration program or disable external alarms 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.
If the display reading is not zero, set the zero reading of the detector as described in
the Start Up section of this manual, then continue this procedure.
3. Screw the regulator into the calibration cylinder.
4. Use the calibration kit sample tubing to connect the regulator to the calibration cup/splash
guard.
Performing the response test
1. Turn the regulator’s on/off knob counterclockwise to open the regulator. Gas will begin to
flow.
2. Allow the gas to flow for two minutes, then verify that the reading is within ± 20% of the
cylinder gas concentration.
NOTE: If the reading is not within ± 20% of the correct response reading, calibrate the detector
as described in the Calibration section of this manual.
3. Turn the regulator’s on/off knob clockwise to close the regulator.
4. Unscrew the regulator from the calibration cylinder.
5. When the Rig Monitor display reading falls below the alarm setpoints, return it to normal
operation.
6. Store the components of the calibration kit in a safe place.
Quarterly
Calibrate the H
2
S detector as described in the Calibration section of this manual.