GMI Shipsurveyor - Sensor Zeroing with Gas Present; Gas Present During Warm-up

3-20
USER HANDBOOK
3.10.2 Instrument Will Not Zero - Gas Present
If a sensor fails to zero because of gas in the atmosphere,
the gas reading ashes as illustrated in Fig. 3-31.
alternates with
Fig. 3-31 Gas Present During Warm-up
To correct this fault, switch the instrument OFF then ON
again in fresh air.