Operation; Run-In Period; Calibration - ProMinent DULCOTEST CDE Serie Instrucciones De Servicio

Installation / Operation
Electrical installation
7
IMPORTANT
• The sensor must be used only in surfactant-free water or solutions!
• When operating the sensor, the sample water must permanently
• Do not switch off the measuring system during interval operation!
7.1
The sensor requires a run-in period before it will display stable readings.
Commissioning:
Re-commissioning:
Diaphragm-/electrolyte replacement:
7.2
The sensor can be calibrated after the run-in period.
IMPORTANT
• A slope test must be carried out after replacing the diaphragm cap or
• Slope tests must be carried out at regular intervals to ensure correct
• Avoid incorrect dosing due to air bubbles in the water. Air bubbles
• Observe applicable national directives for calibration intervals!
24
Rotate the sensor adapter anticlockwise by 90 ºC and remove (bayonet
fitting).
Unscrew the PG-7 threaded connector tensioning screw and insert the
signal cable leading from the controller.
Strip the ends of the cable and attach to the two-wire connector:
1 = positive, 2 = negative.
Insert approx. 5 cm of signal cable into the sensor and tighten the PG-7
threaded connector tensioning screw.
Insert the sensor adapter completely into the housing and screw together
carefully to prevent damage to the ends of the bayonet connector.

Operation

contain chlorine dioxide.
After operation without chlorine dioxide, running-in periods are to be
reckoned with.
If required, switch on metering unit time-delayed!
If no chlorine dioxide is metered for a longer period of time, the
sensor must be disconnected from the power supply and stored dry.

Run-in Period

Calibration

electrolyte!
functioning of the sensor! For testing drinking water, calibration of
the sensor every 3 - 4 weeks is sufficient.
clinging to the sensor diaphragm can reduce the measured variable
and thereby lead to overdosing.
2 - 6 h
1 - 3 h
approx. 0.5 h
ProMinent ®