RKI Instruments Beacon 200 Rig Monitor, LEL/LEL - Manual (Page 47)

Beacon 200 Rig Monitor Operator’s Manual • 42
NOTE: Performing a response test on the LEL 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.
3. If the display reading is not 0 %LEL, 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 calibration cylinder.
5. Use the calibration kit sample tubing to connect the regulator to the
calibration cup of the first detector.
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 one minute, 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. Detach the sample tubing from the first detector and attach it to the
calibration cup of the second detector.
5. Turn the regulator’s on/off knob counterclockwise to open the regulator.
Gas will begin to flow.
6. 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.
7. Turn the regulator’s on/off knob clockwise to close the regulator.
8. Detach the sample tubing from the calibration cup.