10 | Warning and error messages
INFICON
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T-Guard2_Operating-instructions-jina85en1-13-(2009)
E14
Discharge expired
Problem with sensitivity
at the Wise Technology
sensor
No helium in the
surroundings (e.g. inlet
openings purged with
nitrogen)
Restart the device but with
the inlet openings connected
to outside air.
If the problem persists,
contact the INFICON
customer service.
E20
Temperature at the
electronics unit too
high (>60°)
Ambient temperature
too high
Fan failed
Cool the surroundings, place
the device in a cooler room.
Check the fan (check the flow
rate through the inlet in the
housing)
W27
Incorrect
measurement
settings
The trigger setting is
smaller than 5 x the
minimum display
Correct the trigger value(s)
W28
Real-time clock was
reset! Enter date
and time
CPU card was replaced
CPU card battery is
faulty
Enter date and time
Contact INFICON customer
service.
E 38
Pump is faulty
Sensor pressure is
higher than 800 mbar.
Fore pump defective,
not switched on or
pump hose is broken.
Check the fore pump and the
lines to the device.
W41
Pressure difference
is too great
Pressure difference
between the
measurement inlet and
air inlet should be ±10%
Pressure difference
between READY and
FINE
Check the inlet filter.
W43
Pressure too low
Pressure below lower
limit
Reference line is
blocked
Check the upper pressure
limit
Check the reference line
W44
Pressure too high
Pressure above upper
limit
Bad fore pump
Pump hose is broken
Check the upper pressure
limit
Check the fore pump and the
pump hose