20. Trouble-Shooting
107
Dr. A. Kuntze
I
Gutes Wasser mit System
Robert-Bosch-Str. 7a
40668 Meerbusch
+49 (0) 2150-7066-0 / Fax -60
www.kuntze.com
Further messages with activated add-ons:
Event message
Cause
Suggested remedies
mA out of range
The current measured value cor-
responds to an output outside
the 0(4)-20mA range
Check settings
This message appears if the measured value is higher than the one assigned to 20mA or lower than
the one assigned to 0/4mA.
Example:
You have set the mA output to 100-400 µS. The output is 0(4)mA at 100 µS, and 20mA at 400 µS. If
your measured value is 510 µS, this message will appear.
Check the settings for the analog outputs, and change the settings if necessary.
Event message
Cause
Suggested remedies
Dosage check
Controller ouput was 100% for
longer than the specified time
Check dosing, especially feed lines
and pump
Dosage check is a safety measure to shut down the controller in case of defective feed lines to prevent
leaks of hazardous chemicals.
The instrument monitors the time of dosing with 100% controller output – if you are using the instruments
controller and have activated this function by setting the time to a value >0. If within that time the
controller output does not go below 100%, the instrument shuts down the controller, stops the dosing,
and displays this message.
So if you read this message on the display, you have to expect problems with the feed lines, including
the release of dangerous chemicals!
Warning
The dosage check monitors only those times when the controller is dosing
with 100%! If your proportional range is higher than the maximum possible
difference between set point and measured value, this condition can never
be met!
Finally, there are some event messages indicating fundamental problems that you cannot solve on site:
Event message
Cause
Suggested remedies
Communication
error
The internal communication
between instrument parts does
not work
Contact your supplier
