Chapter 4 Maintenance and Troubleshooting
4.2 Troubleshooting
60
HORIBA
●
The measured value is blinks.
・
The conductivity value is outside the display range
(when conductivity value is displayed).
Display range:
0.00 to 19.99 (when cell constant is 100 m
-1
)
Cause
Countermeasure
The sample is
inappropriate.
Use a sample within the measurement
range.
The instrument is
defective.
Perform the check operation mentioned
below.
The meter has not
been calibrated or
it has been cali-
brated incorrectly.
Calibrate the meter correctly.
Check operation
Conductivity, salinity, TDS
Disconnect the electrode.
If the displayed measurement value is near 0,
the instrument is normal.
●
The temperature display blinks.
The temperature display is fixed at 25
°
C.
The temperature measurement value is outside the
measurement range.
Measurement range:
−
30
°
C to 130
°
C
Cause
Countermeasure
The temperature of
the sample is out-
side display range.
Check the sample temperature.
Adjust it within the measurement range.
The internal ther-
mistor connection
of the electrode is
broken or shorted.
Check the resistance of the temperature
sensor connector. If it is 50 k
Ω
or more at
room temperature, replace the electrode.
The connection of
the temperature
connector is failed.
Insert the temperature connector firmly.
The instrument is
defective.
Contact HORIBA sales representative.