GMI PPM Gasurveyor 500, User Handbook Manual

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OPERATOR MAINTENANCE
2) Discard the filter.
3) Check nozzle O-ring for damage, and replace if
necessary.
4) Place a new cotton particulate filter in the nozzle
recess, then insert nozzle and filter in the instru-
ment inlet.
5) Use a coin once again, turning in a clockwise di-
rection, to tighten the nozzle in the instrument in-
let.
Note: Care must be taken not to overtighten the inlet
nozzle.
Probe Handle Assembly - Part No. 13561
Fitting of an in-line filter assembly, which is available as
an accessory, to the probe handle, as shown in Figure
4.2, will minimise the danger of dust and / or water ingress.
Figure 4.2 Probe Handle and In-line Filter Assembly