NAVI D-25 Instruction Manual page 182

● The temperature display is blinking.
The temperature display does not change from 25ºC.
D-52/53/54/55
The temperature
measurement range.
Measurement range: -10 – 100.0ºC
Cause
The temperature
of the sample
solution
exceeds the
measurement
range.
The thermistor
connection
within the
electrode is
severed or
shorted.
The electrode
connector is not
attached
properly.
The main unit of
the meter may
be defective.
There is a
problem with the
setting for the
temperature
display
calibration mode
(see page 93).
6 Maintenance and Troubleshooting
measurement
How to solve problem
Check the temperature of the
sample solution and change to a
sample solution that has a
temperature within the
measurement range.
Measure the resistance of the
temperature sensor connector. If it
is 50 kΩ or more at room
temperature, replace the electrode.
Attach the electrode connector
properly, so that the O-ring on the
temperature connector disappears
from sight.
In Temperature Display Calibration
mode (See " ● Temperature zero
adjustment [item No. 02]" page 93),
check whether or not the "Minus"
display appears, regardless of
whether or not there is a tempera-
ture connector.
Initialize the settings (see page 97).
6.5 Troubleshooting
exceeds the
171