| 摘要 |
A method and apparatus for controlling the zero adjustment of weight sensors adapted to measure the weight of articles. A zero adjustment control operation performed by the method and apparatus of the invention is executed by (1) discriminating whether the zero point deviation of each weight sensor lies within preset allowed limits, (2) applying a zero adjustment to each weight sensor when the zero point deviation thereof lies with the allowed limits and generating a signal for inhibiting the zero adjustment when the zero point deviation lies outside of the allowed limits, (3) counting the number of times the zero adjustment inhibit signal is generated, and (4) comparing the counted value with a predetermined value to produce an alarm signal when the counted value and predetermined value coincide, whereby the zero adjustment of the weight sensor is controlled. |
