The functions of the keys may be set by user programs. Shown below is a set of sample functions.
Status Indicators
Battery voltage level
Shows the current battery voltage level.
If the voltage level is high, three bars appear; if low, a single bar appears.
The displayed battery level shows the terminal voltage of the battery cartridge, not how much power is left.
Keypad shift state
SF Shows a bar when the keypad is shifted.
C (Clear) key
Clears the last inputted data or returns to the original screen. If pressed together with SF key, this C key works as a backspace key.
PW (Power) key
Turns the BHT on or off.
Trigger switch (M3 key)
Cursor keys
Used to move up to the preceding line, down to the next line, to the preceding character, and to the next character.
Numerical keys
Used for numerical input.
Function keys
Used for choosing functions.
Alphabet input
ALP Shows a bar when the alphabet input function is activated.
Synchronization display (BHT-7500S/7500W only)
Shows a bar when the BHT is synchronized with an access point.
ALP (Alphabet) key
Switches the keypad to alphabet entry.
SF (Shift) key
Used in combination with numerical keys for special input procedures.
Trigger switch (M4 key)
M1/M2 (Magic) keys
Used as any of the trigger switch (default), ENT key, SF key, and backlight function on/off key depend- ing upon definition in System Mode or in user programs. These keys can be also assigned string data.
ENT (Enter) key
Finalizes the inputted data or operations, and starts the corresponding process- ing.
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