Warning alerts
Warnin
g
Warning alert text Cause Remedy
01 The limit value
was undershot
The measured value is
below the limit value
Check whether the choice of
the limit value matches the
application and adjust if neces‐
sary.
Check the design of the
actuator: has too small an
actuator been selected?
Check the concentration of the
feed chemical: is the concen‐
tration too low?
Check the control parameters:
does the control tend to over/
undershoot?
02 The limit value
was exceeded
The measured value is
above the limit value
Check whether the choice of
the limit value matches the
application and adjust if neces‐
sary.
Check the design of the
actuator: has too large an
actuator been selected?
Check the concentration of the
metering chemical – is the con‐
centration too high?
Check the control parameters:
does the control tend to over/
undershoot?
03 The wash timer
has timed out.
Maintenance is
necessary
The wash timer acti‐
vates a relay.
The sensor is cleaned
with cleaning fluid.
A visual check may be
necessary as per your
maintenance schedule
Clean and check the sensor.
[Diagnostics]
153
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