Calibration Expired; Calibration Required - GMI V!SA Manual De Instrucciones

Check maximum sample line length (30 metres) is not
exceeded, check sample filter or probe for blockage, if
applicable.

3.4.7 Calibration Expired

During normal operation of the instrument where the
calibration date has expired, a "CAL EXPIRED" warning
flag will flash on the display every 30 seconds to alert the
user of the fact that the expiry date has been exceeded.
Fig. 3.13 Calibration Expired

3.4.8 Calibration Required

During warm-up, if the 'CALIBRATION REQUIRED' flag is
displayed and an audible alarm and Red LED's are
activated, the instrument has detected a fault in the
calibration memory during start-up and is unable to
continue without re-calibration.
Fig. 3.14 Calibration Required
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