7 | Warning and error messages INFICON
108 / 152 UL3000-Fab-ULTRA-Operating-instructions-iinb73en1-09-(2109)
Type Notification Possible sources of
error
Remedy
E504 Pressure sensor p3 not
connected
Pressure sensor not
connected or cable
defective
• Contact customer service
VI-Board or MSB
defective
• Contact customer service
E505 Pressure sensor p4 not
connected
Pressure sensor p4 is
not inserted into the VI-
Board
• Contact customer service
VI-Board or MSB
defective
• Contact customer service
E520 Pressure too high Pressure p2 too high
for at least 15s
• Contact customer service
E521 Pressure rise, anode voltage
collapsed
Pressure rise at
pressure sensor p2 and
anode voltage
collapsed
• Contact customer service
W522 Pressure rise, emission
collapsed
Pressure rise at
pressure sensor p2 and
emission collapsed
• Contact customer service
W540 Flow through capillary is too
low! Leaks may not be
detectable
Filter is dirty • Replace the sniffer tip filter
Sniffer tip or capillary
blocked
• Remove the blocking of the sniffer tip
• Use another sniffer line, if possible
• Contact customer service
The pressure limit for a
blocked capillary is set
too high
• Check and change the pressure limit, if
necessary
W541 Flow through capillary is
much too low! Leaks may
not be detectable
Filter is dirty • Replace the sniffer tip filter
Sniffer tip or capillary
blocked
• Remove the blocking of the sniffer tip
• Use another sniffer line, if possible
• Contact customer service
The pressure limit for a
blocked capillary is set
too high
• Check and change the pressure limit, if
necessary
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