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地磅的使用和调试维修
Time:2019-02-21   Clicks:144
结合实际工作经验,以120t地磅为例,介绍称重传感器的现场使用和调试。 1.称重系统的构成和工作原理 1.地磅的哪些部件组成。20-120吨的电子地磅,由称重仪表,秤体,接线盒,传感器组成 1.电子地磅秤的基本工作原理 当称重物体或载重汽车停放在秤台上,载荷通过 秤体将重量传递给称重传感器,称重传感器将重量转 换为相应的毫伏级电信号。该信号经前置放大、滤波、 A/D转换,由微处理器(单片机)处理,数字显示部位直 接显示称重值。可通过电脑、大屏幕和打印机进行临 时、日报和月报的统计和打印输出。 2.电子地磅的现场使用和调试 1.电子地磅地基和秤体的处理 scs-120t电子汽车衡的基础施工中应满足下列要 求:基础设计符合《JJG668-90固定式电子衡检定规 程》的要求;基础的地耐力不低于98kPa;基础必须挖 到冻土层以下;接地电阻必须小于40;安装限位螺栓 和调整限位间隙必须做到限位间隙达到2~3mm,使之 达到安装要求。 2.地磅的e标定以及角差调节 1.称重时的准确性、重复性、偏载时的影响、稳定 性、灵敏度等都会影响计量的准确。每台计量设备都 是有误差的,各个称量点的误差计算公式: 8=L-M+0.5e-AM 式中,L为实际显示值;M为标准载荷(砝码)值;e 为检定分度值;AM为到下一个闪变时的加载值。只 要误差不超过允许范围都是合格计量设备。具体可以联系本公司客服:4008776366
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