
7
Maintenance
6924-en_V1.3_09/20
101
Loading and weighing the round filters
The support grid has to be in place in the filter holder shaft to be able to load
the round filters.
2
1
Support grid and round filters in filter holder shaft
1 Support grid
2 Two round filters
1.
Open the filter holder.
2.
Place the support grid in the filter holder shaft.
3.
Place the two round filters on the support grid. Check the flow direction
before doing this.
4.
Close the filter holder.
5.
Observe the parameter
raw
: The parameter has to show the value
zero. If the parameter indicates a higher value, there is leakage by the
round filters.
6.
Wait for the specified duration of loading:
For saline aerosol: at least
30
minutes
For oil aerosol: at least
15
minutes.
7.
Open the filter holder.