Calibrating The Orp Measured Value; Selection Of The Calibration Process For Orp; Single Point Calibration Orp Sensor (Cal) - ProMinent DULCOMETER Assembly And Operating Instructions Manual

Calibrating the ORP meas‐
9.2
ured value
Selection of the calibration
9.2.1
process for ORP
Calibration process selection
To calibrate the controller there are two
available calibration processes:
Single point calibration (with buffer
n
solution)
Data input
n
1.
Continuous display ➨
CAL ORP
Last calibration
0.0 mV
Offset
Select calib. proc.
PA installed
continue with <CAL>
Fig. 41: Calibration menu [ORP]
ð The calibration menu is dis‐
played.
2. Using the arrow keys select the
desired menu item. Press
ð The menu for selecting the cali‐
bration process appears.
3. Using the arrow keys select the
desired menu entry
[Select calib. proc.] and press the
key
ð The entry window appears.
4. Using the arrow keys select the cal‐
ibration process and press the
key
5.
Then press
Single point calibration
13:26:11
11/11/2011
Yes
ð You can now start the selected
calibration process.
Single point calibration ORP
9.2.2
sensor (CAL)
Correct sensor operation
Correct measuring and metering
–
is only possible if the sensor is
working perfectly
Observe the sensor operating
–
instructions
For calibration the sensor must
–
be removed and refitted in the in-
line probe housing. To do this,
observe the operating instructions
of your in-line probe housing
ORP sensor calibration
A1027
The ORP sensor cannot be cali‐
brated. Only a deviation [OFFSET]
with a value in the range ± 40 mV can
be set and thereby compensated. If
the ORP sensor deviates by more
than ± 40 mV from the reference
value, then it must be checked in
accordance with the requirements of
the sensor operating instructions.
Calibrating the controller
73