RKI Instruments Beacon 200 Rig Monitor, LEL/LEL - Manual (Page 40)

35 • Beacon 200 Rig Monitor Operator’s Manual
4. Screw the fixed flow regulator into the zero air calibration cylinder.
5. Use the calibration kit sample tubing to connect the fixed flow regulator
to the calibration cup of the first detector.
6. Turn the regulator knob counterclockwise to open the regulator.
7. Allow zero air to flow for two minutes.
8. Turn the regulator knob clockwise to close the regulator. The Rig
Monitor will continue to display the minimum gas response on the
display and retain the response level in its memory.
9. Disconnect the sample tubing from the first detector and connect it to
the calibration cup hose barb of the second detector.
10.Turn the regulator knob counterclockwise to open the regulator.
11.Allow zero air to flow for two minutes.
12.Turn the regulator knob clockwise to close the regulator. The Rig
Monitor will continue to display the minimum gas response on the
display and retain the response level in its memory.
13.Press the ENTER button at the Rig Monitor. The unit will adjust the
zero reading and display the message Fresh Air Adjust Passed for:
Channel 1 Channel 2 before continuing.
14.If you applied zero air to the detectors, unscrew the regulator from the
zero air calibration cylinder.
15.If you applied zero air to the detectors, leave the sample tubing
connected to the regulator and move it from the second detector to the
first detector’s calibration cup.
If you did not apply zero air to the detectors, use the calibration kit
sample tubing to connect the fixed flow regulator to the calibration cup
of the first detector.
NOTE: If the fresh air adjustment fails, see “Troubleshooting” on page 43
for recommended actions.
Adjusting the Span Setting
1. The display asks if you want to perform a span operation on channel 1
by applying gas. Press the UP/YES button to continue with adjusting
the span on channel 1.
If you press the DOWN/NO button, the unit will skip to channel 2.
2. The display asks if you want to perform a span operation on channel 2
by applying gas. Press the UP/YES button to continue with adjusting
the span on channel 2.