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[ 2 ] Displaying the Battery Voltage Level
On the SYSTEM MENU or during execution of user programs, press ENT key while
holding down SF key for displaying the battery voltage level.
As long as you hold down those keys, the following screen is displayed.
Battery Voltage
In user programs, you can select the key to be used for displaying the battery
voltage level (instead of the default: combination of SF and ENT keys).
The displayed battery level shows the terminal voltage of the battery cartridge,
not how much power is left.
The battery voltage level varies depending upon the operation of the BHT-
5000, so the displayed level also may vary by about 1 to 2 levels.
REFERENCE
