INFICON HAPSITE ER Chemical Identification System - Manual (Page 519)

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HAPSITE ER Operating Manual
Figure 16-51 Holding Down the Needle while Tightening the Nuts (So Ferrules Seat Properly)
9 Now that the needle is securely in place, replace the cover and two screws.
Tighten both screws using the Phillips screwdriver.
10 The HSS is now equipped with a new needle and is ready to operate.
16.10 Cleaning the Air Filters
CAUTION
Cleaning the air filter requires the Service Module be
opened and should only be done by technically trained
personnel.
The Service Module has air filters on the inlet air and also on the exhaust air. Both
should be checked for cleanliness periodically. The frequency of cleaning is
determined by the cleanliness of the surroundings and the intensity of use.
INFICON recommends that the filters be cleaned approximately every four months.
Adjust this schedule accordingly based on filter condition.