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pH 1100 L
Obviously incorrect
measured values
Meter does not react to
keystroke
You want to know which
software
version is in the meter
ba77068d05
05/2021
Cause
pH electrode:
– pH electrode unsuitable
– Temperature difference
between buffer and test sam-
ple too great
– Measurement procedure not
suitable
Cause
– Operating condition unde-
fined or EMC load unallowed
Cause
– E.g., a question by the ser-
vice department
What to do if...
Remedy
– Use suitable electrode
– Adjust temperature of buf-
fer or sample solutions
– Follow special procedure
Remedy
– Processor reset:
<OK>
Press the
<On/Off>
key simultane-
ously
Remedy
– Switch on the meter.
Open the menu,
[Menu] / Storage & config /
SystemService informa-
tion. The instrument data
are displayed.
and
<F1__>
/
63
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