HYDAC FILTER SYSTEMS GMBH
Operation | 6
BeWa OFU 3120755d en-us lq
45 / 72
6.2 Observing the optical clogging indicator (optional)
If the filter unit / filter housing is equipped with an optical clog-
ging indicator, then check it daily.
Fig. 13:
Observe the opti-
cal clogging indicator
Change the filter element at a permissible differential pressure
across the filter element or once the clogging indicator enters
the red zone.