Inolab pH level 2 Instruction Manual page 58

LoBat display
to display to to to
Obviously incorrect
measured values
Instrument does not
react to keystroke
You would like to
know which soft-
ware version is in
the instrument
Cause
– Batteries almost
depleted
Cause
– Timeout of the interface
Cause
pH electrode:
– pH electrode unsuitable
– Temperature difference
between buffer and
sample too large
– Measuring procedure not
suitable
Cause
– Operating state
undefined or EMC
electric stress unallowed
Cause
– e.g. question of the WTW
service department
What to do if...
Remedy
– Replace batteries
(see section
5.1 M
AINTENANCE
Remedy
– Checkout connected
instrument
Remedy
– Use suitable electrode
– Adjust temperature of
buffers or samples
– Follow special procedure
Remedy
– Processor reset:
a
Press the key and
switch on instrument
Remedy
a
– Press the
switch on instrument.
The software version
is displayed.
)
key and
127