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Calibrating the controller diaLog DACb
CAL pH
Last calibration
Slope
Zero point
CAL setup
Calibration process
continue with <CAL>
Fig. 37: pH sensor calibration (CAL)
1.
Continue with
.
2.
Rinse the sensor thoroughly with water and dry with a cloth
(pat dry, don't rub).
3.
Immerse the sensor in test container 1 which contains the
buffer solution (e.g. pH 7). Gently move the sensor.
4.
Continue with
.
Do not move the sensor cable during calibra‐
tion as this can lead to signal variations.
ð Calibration is running
Sensor calibration in buffer 1
Sensor voltage
Buffer temperature
Stability
acceptable
Continue with <CAL>
Fig. 38: Display of the sensor stability achieved
[acceptable / good / very good] is displayed.
5.
The range
ð The black part of the horizontal bar indicates the deter‐
mined range.
6.
As soon as the black bar appears, the display changes from
[Please wait!] to continue with
The black bar does not need to be at
[very good].
14:26:07
06/04/2013
56.64mV/pH
7,00 pH
2 point
[Please wait!] flashes.
.
good
.
A1016
A1017
77
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