GAS GC-IMS, User Manual

Page: 205 / 214

GC-IMS
– User Manual
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Action Restart the system. If that still does not
help contact the G.A.S. service hotline.
Symtom Six-Port-valve switching noise sounds strange
Possible Cause Initialization lost
Action Reintializise the Six-Port-Valve
Symtom No sample signals are displayed during a measurement.
Possible Cause Sample-Pump has failed
Action Set pump capacity to 100%. The pump device
must be audible loud. Turn the pumping power
back to the working flow. In addition, the
flow can be measured using a flowmeter at the
sample inlet and outlet. If that still does
not help change sample pump.
Symtom Drift time fluctuates
Possible Cause System is untight
Action Check all gas supply connections of operating
gas.
Action Check all gas supply connections of GC-
column.
Symtom Retention time fluctuates
Possible Cause System is untight
Action Check all gas supply connections of operating
gas.
Action Check all gas supply connections of GC-
column.