Battery Replacement Notes - Denso BTH-300BW User Manual

2.3.6 Battery Replacement Notes

When is battery replacement needed?
If the "Charge the battery!" appears on the LCD, replace the battery cartridge with a fully charged one.
If you leave the BHT without replacing the battery cartridge, the integrated calendar clock or data will no
longer be backed up so that the calendar clock will stop or the message "Contact your administrator.
Note the error number. (XXXX)" will appear on the LCD.
Be sure to turn the BHT off before replacing the battery cartridge.
Replace the battery cartridge quickly. Load a charged battery cartridge within 3 minutes after the
removal in order to avoid data loss.
After replacement, be sure to turn the BHT on and check its operation.
If you will use the BHT more than one time per month:
Keep the battery cartridge loaded in the BHT.
If you will not be using the BHT for more than one month:
Remove the battery cartridge from the BHT and then store the BHT. When doing so, be sure to follow
the procedure given below.
(1) When removing the battery cartridge:
Hold down the PW key for more than 3 seconds to turn the BHT off.
The following message will appear on the LCD and the BHT will start backing up data. After
completion of the backup operation so that the message disappears, remove the battery cartridge.
(The backup operation may take several tens of seconds depending upon the volume of data to be
backed up.)
Chapter 2 Getting Started the BHT and System Mode
Shows the current backup state
in progress.
29
Shows the total volume of data
to be backed up.