Calibration specifica‐
tions of the sensor manu‐
facturer
When determining the cali‐
bration interval, also take
into consideration the oper‐
ating instructions for the
sensor, which may offer
additional and/or different
calibration intervals.
9.5.1
Selection of the calibration
process for the measured
variable O
2
To calibrate the controller there are three
available calibration processes:
n automatic
n DO value
n Zero point
Calibration process selection
1.
Continuous display ➨
CAL DO
A1049
Zero point
Slope
DO value
Zero point
automatic
Fig. 62: Calibration menu [DO]
ð
The calibration menu is dis‐
played.
2. Using the arrow keys select the
desired menu item. Press the
key
ð
You can now start the selected
calibration process.
Calibration
91
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