wtw pH 315i, Руководство по эксплуатации

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pH 315i What to do if...
35
Obviously incorrect
measured values
Instrument does not
react to keystroke
Cause Remedy
pH electrode:
– pH electrode unsuitable – Use suitable electrode
– Temperature difference
between buffer and test
sample too high
– Adjust temperature of buffers
or sample
– Measurement procedure
not suitable
– Follow special procedure
Cause Remedy
– Operating condition
undefined or EMC load
unallowed
– Press the
<CAL>
and
<ON/OFF> keys at the same
time and release them again.
The software version is
displayed briefly.