ProMinent DULCOTROL DWCa Assembly And Operating Instructions Manual page 114

Calibrating the compact controller for inductive conductivity
Calibration compared with a reference
measurement (e.g. manual measuring
device)
Calibration by entering a precisely
known cell constant
Tab. 10: Sensor status
Display Meaning
[OK]
In order
[WRN]
Warning
[ERR]
Error
114
Temperature coefficient of the measuring solution
The temperature coefficient of the measuring solu‐
tion has to be known.
1.
Press , leaving the sensor in the application in which the
sensor is fitted.
2.
Use or key to move the cursor to
confirm with
3. Enter the temperature coefficient of the measuring solution.
Confirm with
4.
Press .
ð The conductivity value measured is displayed.
5.
Now use the
displayed, in accordance with the reference value measured.
ð If calibration has been completed successfully, the con‐
troller stores the determined values for the cell constant
and the error checks relating to the measured value are
restarted. The numerical setting range of the cell con‐
stant is not limited.
6. Press twice to return to the continuous display.
1.
Press and use the
[INPUT]
Confirm with
2.
Use the or
Confirm with
3.
Now use the
or previously determined cell constant.
Confirm with
4.
Press twice to return to the continuous display.
Status
Cell constant = 0.005 / 99.9
none
Cell constant < 0.005 or cell constant > 100
[CELLCONST] and
.
.
, or keys to enter the conductivity value
or key to move the cursor to
.
key to move the cursor to
.
, or keys to adjust the precisely known
.
[CELLC] .