7
The probe can be calibrated after a run-in period. We recommend that you
repeat the calibration 24 hours later.
7.1
The probe needs to be run in so that a stable reading can be obtained.
First commissioning:
Recommissioning:
7.2
Requirements
• The flow in the in-line probe housing must correspond with the "Technical
• pH value within the permitted range
• The sample medium and the probe should be at the same temperature.
Zero point
calibration
Not necessary
Slope test
®
ProMinent
Operation
CAUTION
Do not switch off during interval operation of the measuring
system!
After any operation without chlorine, running-in periods are
to be reckoned with. If required, switch on metering unit
time-delayed!
If no chlorine is metered for a longer period, the sensor must
be disconnected from the power supply and stored in a dry
place.
Run-in period
Calibration
IMPORTANT
• If installing the sensor abroad, please comply with the
local regulations for calibration periods.
• Carry out a slope test every time the membrane is
changed.
data" in chapter 15.
Determine the chlorine content according to the DPD-1 method using an
appropriate instrument for measuring chlorine.
Set the controller/measuring device to the value obtained in accordance
with the operating instructions.
Repeat calibration at regular intervals.
24 hour run-in period recommended
approx. 12-24 hours
Operation
27