Do Value Calibration For The Measured Variable Do - ProMinent DULCOMETER Assembly And Operating Instructions Manual

Calibrating the controller
DO value calibration for the
9.5.4
measured variable DO
CAUTION!
Correct sensor operation / Run-in
period
Damage to the product or its sur‐
roundings
– Correct measuring and metering
is only possible if the sensor is
working perfectly
– Please read the operating manual
for the sensor
– Please also read the operating
manuals for the fittings and other
components used
– It is imperative that the run in
periods of the sensors are
adhered to
– The run in periods should be
allowed for when planning com‐
missioning
– It may take a whole working day
to run-in the sensor
94
Measuring and control behaviour
of the controller during calibration
During calibration the actuating out‐
puts are deactivated. Exception: a
basic load or a manual control vari‐
able 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 successfully, 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.