ProMinent DULCOTROL DWCa Assembly And Operating Instructions Manual page 92

With measuring /control unit
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Calibrating the controller diaLog DACb
92
Measuring and control behaviour of the controller
during calibration
During calibration the actuating outputs are deacti‐
vated. Exception: a basic load or a manual control
variable has been set. This remains active. The
measured value output [standard signal output mA]
is frozen, corresponding to its settings in the mA
output menu.
When calibration/testing has been completed suc‐
cessfully, all of the error checks relating to the
measured value are restarted. The controller saves
all the determined data for zero point and slope
upon a successful calibration.
Used calibration solution
Dispose of the used calibration solution. For more
information: see calibration solution safety data
sheet.
One test container with calibration solution are required for calibra‐
tion.
1.
Press the
key in the continuous display.
2.
Using the arrow keys select
3.
Then press
CAL F -
Single point calibration
Immerse sensor in buffer
Sensor value
Sensor voltage
Start with <CAL>
Fig. 56: Fluoride sensor calibration (CAL)
4.
Immerse the sensor in test container 1 with calibration solu‐
tion. When doing so gently move the sensor
5.
Then press
[Calib. in progress]
ð
[Single point calibration]
2.50 ppm
161.4 mV
.
A1042

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