Karcher SB Wash Oel 50-10 F VA - Manual (Page 20)

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If softened water is consumed, then fresh
water flows through the base exchanger
cylinder and is softened. If the residual
hardness of the softened water exceeds a
marginal value, the hard water sensor trig-
gers a regeneration of the base exchanger
cylinder. The base exchanger cylinder is
regenerated using the brine from the salt
tank.
If the buffer tank of permeate is partially
empty, then softened water flows from the
base exchanger via
– finest filter,
– inlet valve,
– Pump,
– RO membrane,
– to the buffer tank for permeate.
The RO membrane separates the softened
water in the permeate and concentrate.
The permeate flows to the buffer container
for permeate. A part of the concentrate is
fed back for achieving better yield to the
suction side of the pump.
If the Top care programme is active, the SS
wash is supplied with water from the buffer
tank for permeate.
If the residual hardness of the softened wa-
ter exceeds a marginal value, the hard wa-
ter sensor triggers a regeneration of the
base exchanger cylinder.
If there is no water, the plant is stopped in
order to prevent dry running of the pump.
Switches off the pump when the buffer tank
for permeate is full. Starts the pump when
the filling level in the buffer tank for perme-
ate starts to sink.
Issues a signal to SS wash when the buffer
tank for permeate is empty.
Order no. 6.768-004.0
for determining the fresh water hardness.
Order no. 6.768-003.0
For determining the residual hardness of
the softened water.
Order no. 6.803-028
For determining the chlorine content based
on the active carbon filter.
Order no. : 6.288-116.0
Order no. : 6.290-911.0
order number: 6.287-016
25 kg, for option base exchanger
Functional description
Monitoring and safety devices
Hard water sensor
Pressure switch - Water scarcity
Level switch Buffer tank is full
Level switch Buffer tank is empty
Accessories
Test set A
Test set B
Test set C
Fuel
Lock grease
Steel care product
Water softening salt in form of tabletts
20 EN