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  • MEXICANO, página 24
OPOX 11-3
Error symptom
No temperature value
or D.O. value
Measured value too
high or too low
or
error message,
Error
Incorrect temperature
display
ba77078d03
05/2021
4

What to do if ...

Cause
– No connection between meter
and D.O. sensor
– Cable defective
– Coating on sensor cap
– Membrane damaged
– Service life of the sensor cap
over
– Dirt inside the sensor cap and in
the sensor head.
Protective hood not screwed on
tight enough
– Sensor cap untight or defective
– The temperature sensor is not
immersed deep enough in the
measuring solution
– Temperature sensor defective
Remedy
– Establish connection between
meter and D.O. sensor
– Return the D.O. sensor
– Clean the outside of the sensor
(see section 3.3.1)
– Replace the sensor cap
– Check the sensor
– Replace the sensor cap if nec-
essary (see section 3.2)
– Dismantle the sensor cap
– Clean the insides of the sensor
cap and sensor head (see
section 3.3.2)
– Mount the sensor cap correctly
and tighten the protective hood
as far as it will go (see
section 3.2)
– Replace a defective sensor cap
if necessary
– Observe the minimum immer-
sion depth
– Return the D.O. sensor
EN
English
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