Calibration Expired - GMI PS500 Manual Del Usuario

3.4.6 Low Flow - Only applicable to pumped instruments
supplied with this option.
Note: Feature is automatically disabled if air temperature
is below 5
If a "LOW FLOW" message flashes in the display and an
audible alarm and Red LED's are activated, then a low
flow exists. In this alarm condition, the pump symbol is not
displayed. Refer to example Fig. 3.12.
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 if the calibration date has expired, a
"CAL DUE" warning message will flash on the display every
30 seconds.
o o
C (41 F).
Fig. 3.12 Low Flow
Fig. 3.13 Calibration Expired
ALARMS
3-13