Denso BHT-100BW-CE User Manual page 29

Backup power source level
Appears when the voltage level of the backup power source drops.
If you remove the battery cartridge when the voltage level of the backup power source is low, the
contents of the memory can no longer be backed up so that the data stored in the BHT may be lost.
Before removing the battery cartridge, save data not to be lost into the FLASH folder or back it up to
the host computer.
Standby state
Appears when the CPU comes to be on standby.
(This icon does not appear by default. To display it, you need to change the setting in System
Menu or in user programs. For the setting procedure in System Menu, refer to Section 2.4.4, "[3.3]
Device Menu,
programs, refer to the "BHT-100BW-CE API Reference Manual.")
In-charging
Appears when the BHT is being charged.
Charging completion
Appears when the charging is completed.
Caps Lock state
Appears when the Caps Lock switch is pressed on the software keyboard.
Display setup menu, Displaying/hiding the status indicators." For that in user
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