6
Operating the measuring computer
The combined meter is battery-powered. It measures the flow rate in l/min, the total flow in litres and the content
of dissolved minerals, either in μS/cm (microsiemens/cm) or TDS. It is also possible to set a limit for the
maximum still tolerated mineral content in the demineralised water (outlet of the filling station). The limit value
and the total quantity value can be reset.
Switching the conductivity value to TDS / Manual measurement of the conductivity
The factory setting of the measuring computer is electrical conductivity displayed in “μs/cm”. To switch the measurement to
TDS in „ppm“, briefly press the power button. The measuring computer now shows „ppm“ (instead of „μS/cm“).
Press the “A” key to display the current conductivity value (μs/cm). The maximum settable conductivity value is 1999 μs/cm.
Automatic monitoring of the conductivity / Set limit
Press the “S” key to set the limit value for the conductivity in the display. The increase step is 15 μs/cm. A longer pressing of
the “S” key resets the value back to zero.
Switch to automatic mode after you have set a limit value. Do that by pressing the “A” key to first do a manual test. Then
press the “A” key again to switch to the automatic mode. “Auto” will then be shown in the display.
The conductivity will then be measured again every 20 litres. The LED on the left above the display blinks green for 30 se
-
conds if the measured value is below the previously set limit value. The LED will start to blink red and an alarm tone will be
emitted if the measured value exceeds the set limit value.
Switching between automatic and manual monitoring
Press the “A” key to switch from automatic to manual mode and thus reset the last measured value of the automatic monito
-
ring.
set
limit
hold for
3 seconds to
switch on /off
automatic /
manual
measurement
hold for
3 seconds to
reset the total liter
