Specifications

158
12.1 Low Battery Warning
If the output voltage of the battery cartridge drops below a specified lower level limit when the
BHT is in operation, then the BHT displays the Level-1 message "Battery voltage has lowered."
on the LCD and beeps three times. After that, it will resume previous regular operation.
If the battery output voltage drops further, the BHT displays the Level-2 message "Charge the
battery!" or "Replace the batteries!" (when driven by the lithium-ion battery cartridge or dry bat-
tery cartridge, respectively), beeps five times, and then turns itself off automatically.
Refer to the BHT User’s Manual.
12.2 Prohibited Simultaneous Opera-
tion of the Beeper and Illumina-
tion LED
The BHT is so designed that the beeper (and vibrator) and illumination LED will not work simul-
taneously to save power consumption at peak load. There are priority orders between them;
that is, the beeper (and vibrator) has priority over the illumination LED.