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热电阻指示问题
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悬赏1积分
2020-08-31 16:29
我司有一热电阻 pt100 的 现指示偏低 能是什么原因呢?
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1楼
2020-08-31 15:15
用万用表打下,如果对比还是偏低,那就是坏了。
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2楼
2020-08-31 15:15
显示偏低或不稳:保护管内有金属屑、灰尘,接线柱脏污或热电阻短路。
显示无穷大:热电阻或引出线断路,及接线端子松开。
显示负值:接线错误,或热电阻短路。
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