8
7.
General overview of functions
Softcontrol Smart is an online water hardness measuring system for the continuous monitoring of soft
water on a connected water softening system based on cation exchangers for increased hardness con-
centrations.
For this purpose, the device in the bypass takes minimal amounts of raw or soft water from the process
in a time-controlled or flow-controlled manner, evaluates the residual water hardness and issues an
alarm if hardness breakthroughs are detected. At a fixed hardness limit of 10% based on the input wa-
ter hardness, the device triggers an alarm. The determination of the water hardness is possible from
0.18 mmol/l raw water hardness. The measurements are carried out cyclically every 15 minutes in a
flow measuring chamber, in which a selective sensor for calcium and magnesium ions is inserted pres-
sure-proof. Alternatively, the measuring cycle can be controlled by pulses from a connected water
meter.
The process water samples are exchanged by automatically opening or closing the upstream shut-off
valves and then discarded without pressure. If hardness breakthroughs are recognized or a service case
for the measuring system is required, an alarm is signaled. The measurement functions and their re-
sults are displayed with colored LEDs. The measuring system calibrates itself through automatic, cy-
clical switching from soft water to raw water.
raw water
drain
(pressure free)
raw water
optional
external
signal-output
optional
connection
water meter
valve
raw water
sensor
m
ea
s
ure
me
n
t
c
ha
m
be
r
power supply
240V / 50 Hz
V
softener
sensor cable
soft water
fi
lt
er
fi
lt
er
valve
soft water
5
soft water
Summary of Contents for Softcontrol Smart
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