1. Press the key in the continuous dis‐
play.
2. Using the arrow keys select
[Single point calibration]
3. Then press
CAL F
-
Immerse sensor in buffer
Single point calibration
A1042
Sensor value 2.50 ppm
Sensor voltage 161.4 mV
Start with <CAL>
Fig. 58: Fluoride sensor calibration (CAL)
4. Immerse the sensor in test container 1
with calibration solution. When doing so
gently move the sensor
5. Then press
ð
[Calib. in progress]
.
CAL F
-
Single point calibration
A1043
Sensor value
2.50 ppm
Change with <OK>
continue with <CAL>
Fig. 59: Fluoride sensor calibration (CAL)
6. Then press to change the ppm value
or press
to continue with the calibra‐
tion
7. Then press
8. Import the result of the calibration into
the controller memory by pressing the
key
ð
The controller displays the contin‐
uous display again and operates
with the results of the calibration.
Incorrect calibration
Should the result of the cal‐
ibration lie outside the
specified tolerance limits,
an error message appears.
In this case the current cali‐
bration will not be applied.
Check the prerequisites for
the calibration and clear the
error. Then repeat the cali‐
bration
Calibration
102
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