3 Operation
│
39
3.11
Changing the filter
The filter seal seals the filter opening. The dust filter is located in
the filter seal, the hydrophobic filter is located in the filter opening
(Fig. 28).
Fig. 28:
Position of filters
(schematic representation)
from top to bottom:
Filter fastener with 2 O-rings
Dust filter
O-ring
Hydrophobic filter
The filter fastener has lugs of two different widths. It is a close fit
in the filter opening.
Fig. 29:
Filter fastener with lugs of two dif-
ferent widths (view from above)
Frequency
The frequency of the filter replacement is greatly dependent on
the frequency of device usage and the ambient conditions dur-
ing use.
