Manual

32
Adjustment and commissioning
9.4. Selecting the frequency of the
main supply
Switch 1 is used to select the frequency of the current provided by
the electricity network.
→ Position switch 1 to ON or OFF depending on the frequency of
the main supply (see Fig. 26, chap. 9.2, and the following table).
Frequency of the power sup-
plied by the network
Position of switch 1
50 Hz OFF
60 Hz ON
9.5. Filter selection
The filter is used to attenuate the fluctuations in the flow indicated by
the bargraph and on the current and frequency outputs. The device
can operate with or without filter.
→ Position switch 2 (see Fig. 26, chap. 9.2, and the following
table) to activate or deactivate the filter feature.
Filter Position of switch 2
disabled OFF
enabled ON
When the filter is enabled, switch 3 is used to select the filter level:
slow or fast.
"Slow" filter is used to even out high variations in flow (example: fluid
containing air bubbles), see Fig. 27.
"Fast" filter is used to even out low variations in flow (see Fig. 27).
t (s)
t (s)
t (s)
Actual flow rate
Flow attenuated with fast filter
Flow attenuated with low filter
Fig. 27: Flow filters
→ Position switch 3 to the filter level selected (see Fig. 26, and the
following table).
English
Type 8041