Instruction manual
Negative Pressure Unit Compact 100.000
Page 10
5.5 Information about the filter change
The frequency of the change of filter depends on the degree of pollution of the filter. If the
clogging of the filter increases (contamination of the filter), the air capacity decreases.
For the control of the filter during the operation, the device is equipped with a manometer
and a signal light.
Important: Use only authorised, faultless filter!
With filter of new condition, approximately 950 Pascal are displayed on the gauge.
(Evaluated at 100 % capacity)
We recommend a filter change at about 1400 Pascal (indicator light filter monitoring is
on)
To determine which filter (main filter, bag filter or pre-filter) is dirty, at a value on the
pressure gauge of about 1400 Pascal, do as follows:
1. Exchange the pre and bag filter and switch on the unit
2. Pressure gauge value 950 - 1150 Pascal
=> continue to operate the unit
3. Pressure gauge value > 1150 Pascal
=> exchange the main filter
