Switching On And Off - Metabo DP 18-5 SA Manual Original

eye to lower the pump.
The pump can also be operated when sus-
pended by a rope.
3. Before operating the pump again, ensure
that the pump line has been completely
emptied.
5. Operation
5.1

Switching ON and OFF

After you have connected the pump to the
mains, it will be switched on (9) and off (10)
automatically by the float switch. The point in
time at which switching occurs depends on
the water level.
9
10
Adjusting the ON and OFF times for the
pump
The position of the float switch cable in the
cable holder can be changed. The time inter-
val between pump switch-on and switch-off is
thereby adjusted:
– 'Short' float switch cable: ON and OFF po-
sitions are close together.
– 'Long' float switch cable: ON and OFF po-
sitions are far apart.
Caution!
Attach the float cable so that the OFF
position is at least 150 mm above the
base of the pump. The pump may run dry and
thereby be damaged.
Caution!
The float switch must always be able
to move up and down to allow the
pump to be switched on and off.
Caution!
The pump must not be activated more
than 20 times an hour, as this could
cause the motor to overheat.
Danger from faulty pump!
Take appropriate measures to ensure
that pump faults do not cause conse-
quential damage through flooding of rooms.
This must be ensured, for example, through
installation of an alarm system or a reserve
pump.
Danger!
Do not let the pump run against a
closed pump line.
5.2 Minimum water level
Continuous operation:
The pump must be completely submerged for
continuous operation to take place.
Restricted operation:
Only restricted operation is possible if the
pump is not fully submerged. Note the follow-
ing restrictions:
Risk of material damage from dry
running of pump!
The pump can overheat and become
damaged as the cooling function of the
pumped medium is reduced. The thermal
switch will react.
Suction operation for a short period only

(2-3 mins).
Monitor the pump's operation during suc-

tioning.
5.3 Pump capacity curve
The pump capacity curve indicates the flow
volume, depending on the delivery head.
m
18
16
14
12
10
8
6
4
2
0
0 5 10
6. Device care, maintenance
Danger!
Unplug before maintaining or
cleaning.
Repair and maintenance work other than de-
scribed in this section should only be carried
out by qualified specialists.
ENGLISH en
3
15 20
m /h
25
13