Heath Consultants GT Series - Manual (Page 121)

11-17
ALARMS
Fig. 11.11 Sample / Flow Fault
Check sample line, sample filter or probe for blockage, if
applicable. Clear blockage then restart the pump.
To clear the flow fault:
• Press the RH button .
or
• Press and hold FLOW ACK
(in Confined Space Mode only)
Note: In Confined Space mode, the pump will not
switch off if a sample fault exists.
11.6.5 Calibration Expired
During the warm up of the instrument, a check is done to
verify if the calibration date has expired. If the instrument
is configured to pause if calibration is due, the user is
asked to continue or not. If yes is selected, the user can
continue using the instrument as normal. If no is selected,
the user is forced to switch the instrument off and return
the instrument for calibration. The calibration due date is
only displayed during the warm up of the instrument and
there will be no indication during normal operation.