18. Trouble-Shooting
Dr. A. Kuntze
I
Gutes Wasser mit System
Robert-Bosch-Str. 7a
40668 Meerbusch
+49 (0) 2150-7066-0 / Fax -60
www.kuntze.com
86
Event message
Cause
Suggested remedies
Out of measuring
range
Measured values exceed
the measuring range
Trend indication only
If the measured value lies outside the measuring range but can still be processed by
the instrument, it will be displayed together with this message. Please note that all
information on accuracy, linearity, influences of temperature etc specified in the data
sheets, only apply to values within the measuring range. Outside this range, the
deviations and cross-influences might be higher, and the measurement can only be
used as an indication.
If your instrument allows to select from a variety of measuring ranges, select the next
higher range.
If the measured value gets so high that it can no longer be processed, the message
„check measuring input” will appear.
Event message
Cause
Suggested remedies
Upper limit (or lower
limit, respectively)
The measured value is
higher than the upper limit
(or lower than the lower
limit, respectively)
Check dosage
check controller parameters
keep in mind delay settings
If the measured value exceeds the limits, this might mean that the feeding of control
chemicals has been interrupted, because a reagent is empty, or the controller was
stopped, or a feed line is damaged.
Warning
If this message was caused by a defective feed line, hazardous
chemicals might leak from the break!
Note
In that case a second me
ssage „dosage check“ is probably
displayed, if you have activated this function and your controller
settings do not impede the function.
If the message occurs shortly after start-up and possibly quite frequently, please
check the settings for control and limits to make sure that they match both each other
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