| 摘要 |
PURPOSE:To know the time for requiring a new battery and for charging by issuing an alarm of voltage drop when the battery voltage is detected to be dropped to the voltage requiring replacement or charging. CONSTITUTION:An inspection is performed to know whether or not a battery 16 has the remaining amount of battery to use the transmitter. That is, a CPU 17 in a control part 10 inspects the present voltage of the battery 16 received from a warning voltage detection part 11 through an interface 23 according to the prescribed system program stored in a program memory 19. When the present voltage of the battery 16 is detected to not have the prescribed amount of the battery, the CPU 17 flickers a pilot lamp 7 and rings a buzzer 8 by a system timer 21 through an interface 24, then it displays the massage of 'exchange battery' and 'charge the battery' on a data display part 6. Then all operations of the transmitter is stopped. |
