Agilent Technologies PHD-4 User Manual page 42

5 Technical Information
Routine Maintenance of the PHD-4
Maintenance of the sintered filter
The sintered filter is positioned on the top of the analysis probe and
can be accessed removing the sampling nozzle (see figure). This filter
is also accessible with the housing fitted.
1
Extract probe A from its housing.
A
2
Unscrew the sampling cone B on the top of the probe.
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B
B