DRAUFLOS DF 250 USF Manuel d'instruction - Page 5
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EN
To prevent the level sensor from jamming
when mounted on a hose pipe, the mini-
mum distances from the float to the pump
casing (housing), shown in Fig. 3 and 4.
43
mm
Fig. 3. The minimum distance from the
pump housing to the float.
33
mm
Fig. 4. Minimum distance from pipe to float.
Security:
■
■
■
Switching the pump on:
1. Unwind the wire cable completely.
2. Ensure that all electrical connections are
3. Independently adjust the setting of
4. Secure the float switch cable to the pump
5. Slowly immerse the pump in the suction
160
Max
mm
6. If the pump rests on the bottom, make
7. Insert plug into the socket outlet.
HANDLING
Automatic operation mode:
1. The submersible pump is automatically
ATTENTION!
With the help of appropriate measures, care
should be taken that in the event of a mal-
function of the submersible pump, there is
no flooding.
Connect a hose (or pipe) with a diame-
ter at least equal to the diameter of the
pump outlet.
Make sure that the hose (or pipe) leaving
the pump is not blocked
Avoid dry running of the pump.
ATTENTION!
A submersible pump must not suck in solid
particles. Sand and other abrasive substanc-
es contained in the pumped liquid destroy
the submersible pump.
protected from flooding and moisture.
switching points of the float switch.
housing.
INFORMATION
When working on a muddy, sandy or rocky
bottom, use suitable platform for installing a
submersible pump.
fluid, making an angle of 45 degrees (to
reduce the amount of air trapped in the
pump casing).
sure it is on a flat and stable surface.
switched on by the float switch when a
certain liquid level is reached, and when
the level is lowered, it automatically turns
off.
4