| 摘要 |
PURPOSE:To make possible to prevent the over discharge of a battery and display the drop of the voltage by cutting off a driving power source after a current flowing time required for a displayer to display when the voltage drop of the battery for driving an electronic weighing machine was detected. CONSTITUTION:When the voltage drop of a driving battery 1 was detected in an electronic weighing machine in which load G is measured with a load cell 2, A/D converted (3) after passing an amplifier 4 and displayed by a weight displayer 5' via a decoder driver 6, instruction is given to a latch relay 7 after delaying (17) a time a voltage drop displayer 9 which can self-hold requires, and the output of the battery 1 is turned on and off. By so doing, the over discharge of the battery can be prevented and the drop of the voltage can be displayed. |
