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Adjusting the beeper volume
You can adjust the beeper volume to four levels from OFF to MAX.
1) Use the F5 and F6 keys to select the BEEPER VOLUME line.
2) To turn down the volume, press the F7 key; to turn it up, press the F8 key.
After making the above setting, press the ENT key or no keys for five seconds. The
new settings will be fixed and the above screen will disappear.
Displaying the Battery Voltage Level
On the SYSTEM MENU or during execution of user programs, press the ENT key
while holding down the SF key for displaying the battery voltage level.
As long as you hold down those keys, the following screen is displayed.
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).
The displayed battery level shows the terminal voltage of the battery,
not how much power is left.
The battery voltage level varies depending upon the operation of the
BHT, so the displayed level also may vary by about 1 to 2 levels.
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