Calibration - ProMinent DULCOTEST OZE Mode D'emploi

7.2
After expiry of the running-in period, the sensor can be calibrated.
IMPORTANT
• A slope calibration must be carried out after having replaced a
• For a perfect functioning of the sensor, the slope calibration must be
• Avoid incorrect metering because of airlocks in the sample water!
• Observe the valid national regulations for calibration intervals!
Prerequisites • constant flow at the in-line probe (see Chapter 15 "Technical data")
• operating pressure of max. 1 bar maintained
• constant temperature of the sample water
• identical temperatures of sample water and sensor (wait for approx. 15 min.)
• constant pH value
Zero point calibration
If the sensor is operated at a ProMinent control unit, a zero point calibration
is normally not required. Perform a zero point calibration if you use the sensor
at the lower measuring range limit.
Prerequisites • the sensor has been run-in (see Chapter 7.1 "Running-in period")
• constant flow at the in-line probe (see Chapter 15 "Technical data")
ProMinent ®

Calibration

diaphragm cap or electrolyte!
repeated in regular intervals! For swimming pools, a calibration of the
sensor every 3-4 weeks is sufficient.
Air bubbles sticking to the diaphragm of the sensor might cause a
low measuring value and thus might result in incorrect metering.
Dip the sensor in a bucket with clean, ozone-free tap water.
Stir with the sensor until the reading at the control unit has been stable for
5 min.
Calibrate the control unit to zero according to its operating instructions.
Reinstall the sensor into the in-line probe (DGM; DLG) as described in the
Chapter 6 "Installation".
Operation
33