8 | Appendix
HYDAC FILTER SYSTEMS GMBH
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MoWa OLFP-3-6 3819798a en-us
8.2 Clogging indicators - technical data
Listed below are the technical data pertaining to the optional,
optical or electrical clogging indicators suitable for the installa-
tion in the filter housing / filter unit.
8.2.1 Differential pressure indicator, visual – VM x B.x
The optical differential pressure gauge reacts to the increasing
pressure difference at the increasing contamination level of the
filter element.
30
Fig. 20:
Differential pressure indicator - visual VM x B.x
Type of indication
Visual display with a green-red
field, automatic reset
Weight
55 g
Response pressure and indi-
cation range respectively
VM 2 B.x = 2 bar -10%
VM 3 B.x = 3 bar -10%
VM 5 B.x = 5 bar -10%