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116问答网 > 压力变送器给plc4~20ma信号乱变不稳

压力变送器给plc4~20ma信号乱变不稳

2025-04-06 00:39:02

推荐回答（1个）

回答1：

先看被测的压力稳不稳，如果被测的压力都不稳，输出模拟量信号不稳就对了。
再看供电电源稳不稳，供电电源不稳或者电压过低，输出信号也不稳定。
测量时，最好是在变送器侧的接线处，变送器一般都能拆开，直接量里面，免得电线过长导致电磁干扰。
如果都不是，那么你就可以换变送器了。
望采纳。。。。。

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