Troubleshooting on additional components
Instruction Manual VisGuard 2 Extractive
14265E/1
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9
Troubleshooting on additional components
9.1
General troubleshooting
As there are many different versions of the sampling system, only general information can be
given on troubleshooting. Attempt to localize and rectify the malfunction according to the
following table. If this is not successful, please contact customer service (Section 11).
MALFUNCTION
POSSIBLE CAUSE
MEASURES
Measuring value is
too low
Leaks in the sampling system
Section 8.2
Clogged sampling points
Section 8.3
Soiled/clogged sample lines
Section 8.5
Incorrectly set suction correc-
tion factor
Section 7
Measuring value is
too high
Incorrectly set suction correc-
tion factor
Section 7
Soiled/clogged sample lines
Section 8.5
No sample heating
(fog build-up)
Section 9.2
Malfunction in flow
rate monitoring
Leaks in the sampling system
Section 8.2
Interruption to the sampling
system
Localize and rectify the inter-
ruption
Soiled/clogged sample lines
Section 8.5
Defective valve unit
Section 9.3
Sample is not being
suctioned in
Clogged sampling points
Section 8.3
Soiled/clogged sample lines
Section 8.5
Clogged filter
Section 8.4
Kinked line
Section 8.3
Suction fan not running
Section 10.3
Displaced zero point
Clogged purging air line
Clean the purging air line
Suction fan not running
Section 10.3
Clogged filter KZTN3
Section 8.4
Purging air filter clogged
Replace the purging air filter
Section 8.6
Table 2: Malfunctions and their possible causes
