Chapter 6 Maintenance and Troubleshooting
6.2 Troubleshooting
F-51
87
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The temperature display is blinking.
The temperature display does not change from 25ºC.
The temperature measurement exceeds the measurement range.
Measurement range: -10 – 100.0ºC
Cause
How to solve problem
The temperature of
the sample solution
exceeds the
measurement range.
Check the temperature of the sample solution
and change to a sample solution that has a
temperature within the measurement range.
The thermistor
connection within the
electrode is severed
or shorted.
Measure the resistance of the temperature
sensor connector. If it is 50 k
Ω
or more at
room temperature, replace the electrode.
The electrode
connector is not
attached properly.
Attach the electrode connector properly, so
that the O-ring on the temperature connector
disappears from sight.
The main unit of the
meter may be
defective.
In Temperature Display Calibration mode ( "
Temperature zero adjustment [item No.
02]" page 43), check whether or not the
"Minus" display appears, regardless of
whether or not there is a temperature connec-
tor.
There is a problem
with the setting for
the temperature
display calibration
mode (see page 43).
