ProMinent DULCOMETER Assembly And Operating Instructions Manual page 65

Calibrating the zero point
1. Press , remove the sensor from the application in which it is fitted.
2. Rinse the sensor with clean water and dry it.
3.
Use the or
4. Hold the sensor in the air.
Press .
5. Wait for the process
[STABLE (10 sec)?] = The value displayed needs to be displayed stably for
ð
longer than 10 seconds. (Fluctuation < 0.5% of the displayed value).
6. Press .
7.
Press , or
Press if you wish to use the
ð The new value for the zero point is carried over into the memory and the con‐
troller shows the continuous display again.
Fig. 27: Display of incorrect calibration.
8. In the event of incorrect calibration, press
press to use the factory settings.
key to move the cursor to
[WAIT ...] .
[ZERO] default value and then press
CAL ZERO
ZERO = 373.793 µS
CAL=OLD
[ZERO] and confirm with
ERR
OK=RESET
A1945
to retain the old calibration value and
Operating menus
.
.
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