Calibration - Honeywell BW RigRat User Manual

If the Audio-Visual test fails or some sensors fail their bump test, the display will show results
like this:
Important! Gas must be applied only after RigRat shows "Apply test gas now." Otherwise, the bump
test will fail.
Important! If one or more sensors fails a bump test, be sure to calibrate those sensors.
The bump test is now complete.
If all the alarms and all sensors have passed and no sensor is due for a calibration, the instrument is
now ready for use.

Calibration

This operation sets the zero and span points of the sensor calibration curve.
Note: If LEL% and VOL% sensors are installed, always calibrate the LEL% sensor first..
1. Hold the button for 3 seconds at main screen for the 3-second countdown.
2. After 3-second countdown for power off, keep holding the button, and the screen shows
another 3-second countdown for entering Menu Mode.
3. Enter the password and accept the number.
4. Press the button to advance to the next menu.
5. Press and hold the button for 3 seconds to enter calibration.
6. Press the button to start zero calibration.
Note: If the RigRat has CO
nitrogen for a zero calibration.
7. Install the calibration adapter and apply nitrogen.
8. Turn off the gas or remove the calibration adapter when the nitrogen calibration completed.
9. Install the calibration adapter again and apply span gas to continue span calibration.
BW RigRat User's Guide
or Oxygen sensor, after zero of fresh air, it will continue to
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