4-5
IM CW120-E
Connecting Power Supply and Turning Power On/Off
4
● Self-test Details and Error Handling
Test Items and Errors
No.
1
2
3
@
4
5
Test Item
Backup SRAM check
EEPROM check
Real-time clock check
Setting check
External memory controller check
Error Number(s)
to
to
to
If an error is found during the self-test, an error number is displayed. Confirm
the error number and press any key, then the screen changes to the
measurement screen.
NOTE
• If an error is found with any of test item Nos. 1, 3, and 4 (backup SRAM check, real-time clock
check, and setting check), the settings, date, and time will be initialized.
• The above situation may occur when the backup battery has become flat. When the (low
battery) sign is displayed on the screen, the backup battery needs to be replaced.
• The backup battery cannot be replaced by the user. For replacement, contact the vendor from
which you purchased the instrument.
• The backup battery life is about 10 years.
SEE ALSO
For details of errors and the countermeasures, see Chapter 13, “Troubleshooting.”
4.3 Startup Screens
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