INFICON Protec P3000(XL) Helium Leak Detector - Manual (Page 109)

Maintenance
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7.3 Exchanging the external fuses
Use a screw driver to fold out the lid of the mains socket from the right (the mains
switch is not affected by this).
The fuses can be removed by pulling out the drawers which are marked by the
arrows. On re-inserting these, make sure that the arrows point downward.
The two fuses must be replaced by two fuses of the same rating. The required mains
fuses are available as cat.-no.
After having exchanged the fuse(s) firmly reclose the lid of the mains socket.
Re-connect the mains cord to the Protec P3000 and switch on the leak detector.
7.4 Replacing filters in the sniffer line
If the sniffer probe is clogged, a warning “Flow through capillary too low” (warning 35
or warning 41) will be issued.
Clogging of the sniffer probe may be due to:
• Clogging of capillary filter: see Section 7.4.1 (for SL3000 only)
• Clogging of sinter filter: see Section 7.4.3 (for SL3000 only)
• Clogging of sniffer tip filter (for SL3000XL only)
• Clogging of sniffer probe capillary
• Damage of sniffer tip
• Clogging / damage of sniffer line
Warning
Before exchanging the fuses you must disconnect the mains cord.
Fig. 7-4 Replacing the mains fuse