ITC 44-010, Manual

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PROBLEMS CAUSE
Sensor pasivado por
trabajar a más de 3 ppm
El pH del agua es más
elevado que en el momento
de la calibración, y no hay
medida de pH en el
controlador .
El pH es superior a 9, y por
lo tanto está fuera de la
zona de compensación.
SOLUTION
- Check connections
- Realizar una limpieza
electroquímica
- Calibrar el sensor
introduciendo el valor
correcto de pH, o instalar
un sensor de pH para
efectuar la compensación
automática.
-Ajustar el pH dentro del
margen de pH admisible:
6.5-9
7.4 PROBLEM-CAUSE-SOLUTION
READING mg/l = 0,
DOES NOT MATCH
WITH DPD-1
MEASUREMENT
Sensor fails to connect with
control device
Insufficient flow in sensor
holder, or the chlorine sensor
not in contact with the water
- Adjust the flow that
reaches the sensor
holder. Clean the sensor
holder's filter and flow
regulator.
- Purge the sensor holder
and ensure that no air is
left in the measurement
zone.
- Let the water containing
free chlorine flow around
the sensor holder for 1
hour.
- Adjust the flow that
reaches the sensor
holder. Clean the sensor
holder's fliter and flow
regulator.
- Purge the sensor holder
and ensure there is no air
in the measurement zone.
Air bubbles in the sensor
measurement zone.
The sensor has been
measuring water without free
chlorine for a few hours
READING LOWER
THAN THE DPD-1
MESURE
Insufficient flow in sensor
holder
Air bubbles in sensor
measurement zone.
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