INFICON Protec P3000(XL) Helium Leak Detector - Manual (Page 113)

Maintenance
7-8
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4 Visually check the filter for contamination.
5 Install a new sinter filter with o-ring at the bottom of the filter tip.
6 Reinstall the sniffer tip.
7 Switch on the Protec P3000.
8 Hold finger against the capillary filter:
You should be able to feel the resulting vacuum.
9 If the warning “Flow through capillary too low” remains after releasing the finger from
the capillary filter, replace the sniffer tip first. If this does not cure the problem, the
capillary in the sniffer line is clogged and the complete sniffer line needs to be
replaced.
10 Please recalibrate the Protec P3000 for most accurate display of leak rate.
Fig. 7-9 Sinter filter