wtw pH 3310 - Obviously incorrect measured values; Meter does not react to keystroke

pH 3310 What to do if...
65
ba75802e02 12/2008
Obviously incorrect
measured values
Meter does not react to
keystroke
You want to know which
software
version is in the meter
Cause Remedy
pH combination electrode:
– pH combination electrode
unsuitable
– Use suitable combination
electrode
– Temperature difference
between buffer and test sample
too high
– Adjust temperature of buffer
or sample solutions
– Measurement procedure not
suitable
– Follow special procedure
Cause Remedy
– Operating condition undefined
or EMC load unallowed
– Processor reset:
Press the <ENTER> and
<On/Off> key
simultaneously
Cause Remedy
– E. g., a question by the service
department
– Switch on the meter.
Open the menu,
<F1
_>[Menu] / Storage &
config / System / Service
information. The instrument
data is displayed.