YOKOGAWA CW140, User Manual, Page: 168 / 292

IM CW140-E
17-6
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Testing Backup Battery
The CW140 contains a battery so that the backup of clock data and memory
can be carried out. The battery is tested during the power-on sequence and
the results are displayed on the startup screen.
CW140 Ver.0.00
SRAM Check Ok
Battery Backup SRAM Check Ok
EEPROM OK
Function Code ...00000000
RTC Initialized
FDC Check Ok
Setting Initialized
Flash Disk Ok
Enter:Ok
• Checking RTC
(Real-time clock)
• Checking set up data
If initialization of either of the
above has been performed, the
backup battery may be low.
(See the NOTE below)
NOTE
••••• If the backup battery in your meter becomes low, contact the vendor from which you purchased
the instrument.
••••• Note that if the battery is low, data backup will not occur when there is a power failure during
continuous measurement.
TIP
If the initialization sequence detects and displays that the backup battery is low, all the settings will be set
to the default value before shipment and/or the date and time will be reset to "2000/01/01 00:00:00".
17.1 Auxiliary Functions