Heath Consultants Gasurveyor 500 Series - Manual (Page 34)

GASURVEYOR 3-500 USER HANDBOOK
24
Filter Replacement
Hydrophobic and cotton particulate filters in the probe
handle minimise the danger of water and dust ingress.
Caution: The instrument should never be switched on
without suitable filters installed.
If a blockage occurs the ‘SAMPLE FAULT’ indicator is
displayed. Check the sample line and probe handle for
blockage. Press Button One
to clear the ‘SAMPLE
FAULT’ message. Replace the filter(s) if the message does
not clear.
To replace the filter(s), proceed as follows:
1) Unscrew the probe handle assembly.
Hydrophobic Filter
Cotton Particulate Filter
Probe Handle Assembly
Figure 4.1 Filter Assembly