Warning Messages - ProMinent DULCOMETER diaLog DACb Assembly And Operating Instructions Manual

22.4.2

Warning messages

Tab. 31: Warning messages
# Warning message text Cause
01 The limit value was
undershot
02 The limit value was
exceeded
03 The wash timer has
timed out. Mainte‐
nance is necessary
04 The measuring
channel is not yet cali‐
brated
05 Not yet calibrated.
71 The battery needs to
be replaced
72 Check the time
73 The fan has a fault
85 A fault in the external
power supply.
The measured value is
below the limit value
The measured value is
above the limit value
The wash timer activates
a relay.
The sensor is cleaned with
cleaning fluid.
A visual check may be
necessary as outline in
your maintenance
schedule
The sensor connected to a
measuring channel has
not yet been calibrated
The system has not yet
been calibrated.
The battery has a service
life of about 10 years, but
this can be reduced by
environmental factors
The time has changed
when replacing the battery
The internal fan is no
longer rotating
The external power supply
has been incorrectly
designed or is faulty.
Remedy
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 chem‐
ical: is the concentration too low?
Check the control parameters: does the con‐
trol tend to over/undershoot?
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 concentration too high?
Check the control parameters: does the con‐
trol tend to over/undershoot?
Clean and check the sensor.
Calibrate the sensor.
Calibrate the system e.g. the sensor.
Replace the battery or inform Service.
Battery BR 2032, Part no. 732829.
Reset the time.
Please check to see whether an object has
become trapped in the impeller otherwise
return the controller to the manufacturer for
inspection.
Return the external power supply to its cor‐
rect working order.
[Diagnostics]
163