40
IM CA500-02EN
4 Troubleshooting, Maintenance, and
Inspection
4.1 Troubleshooting
Faults and Corrective Actions
If servicing is necessary, or if the instrument does not operate properly even after
you have attempted to deal with the problem according to the instructions in this
section, contact your nearest YOKOGAWA dealer.
Problems and Solutions
Reference Page
The instrument
does not turn on.
Check the battery level.
32
Check that the batteries are inserted correctly.
Or, check that the USB power supply adapter is
connected properly.
31 to 33
The power turns
off.
Check the battery level.
32
Check whether the power supply that you are using
can supply a current of 500 mA or more.
33
The screen is dark. Increase the display light setting.
IM CA500-01EN
*
The screen turns
off.
Set auto power-off to OFF.
IM CA500-01EN
*
The display is odd. Confirm that the ambient temperature and humidity
are within their specified ranges.
24
Confirm that the display is not being affected by
noise.
24
Restart the instrument.
34
The measured or
source value is
odd.
Check the battery level.
32
Check whether the power supply that you are using
can supply a current of 500 mA or more.
33
Check that connections are correct.
26
Confirm that the ambient temperature and humidity
are within their specified ranges.
24
When using the included binding post for sourcing
thermoelectromotive force of a thermocouple, check
that the short bar has been removed.
–
A self-test error
appears at power-
on.
This indicates that the settings have been initialized
due to an error in the setting information stored in
the instrument.
If the error appears every time at power-on, repair is
necessary.
–
There is an error in the calibration data stored in the
instrument.
If the error appears every time at power-on, repair is
necessary.
–
* User’s manual in the CD
Summary of Contents for CA550
Page 3: ......
