GMI Gasurveyor 500 Series, Руководство пользователя

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GASURVEYOR 500 USER HANDBOOK
3-12
Operator Messages / Fault Flags
Various messages can appear on the LCD screen to
indicate instrument status.
‘SAMPLE’
This indicates that the pump is running and the instrument
is sampling.
‘OFF’
This indicates that the instrument is about to switch off.
This command can be cancelled by a single press of any
switch.
‘SAMPLE FAULT’
This indicates a problem with the instrument’s flow due to
the sample path being blocked, water ingress, a blocked
filter or pump failure.
In CGI mode the pump stops automatically. The sample
line, filters etc. should be checked for water ingress or
blockage and Switch One should then be used to restart
the pump.
In CSM mode the instrument will alarm and the pump will
continue to run. The sample path should be checked and
Switch One pressed to clear sample fault.
‘CHECK ZERO’
This indicates that there may have been a zero shift due
to the presence of gas. Switch off the instrument and
switch on again in fresh air.