Agilent Technologies PHD-4 User Manual page 41

4
Remove the saturated filter A pulling this delicately in an upward
direction.
5
Exerting a slight pressure, insert a new filter
6
Position the fitting on the top of the new filter and secure it with
a ¼ turn in a clockwise direction.
PHD-4 Portable Helium Detector User Manual
Technical Information
Routine Maintenance of the PHD-4
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A
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