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樓主  發(fā)表于: 2009-10-09 10:48
液壓系統壓力10MPa，檢測液壓缸壓力的壓力變送器40MPa(過(guò)載到80MPa)，一開(kāi)始沒(méi)有問(wèn)題數值正常。剛使用幾天壓力變送器輸出22mA(故障狀態(tài))。電氣線(xiàn)路經(jīng)信號發(fā)生器檢驗沒(méi)有問(wèn)題，通道采集正常。目前已經(jīng)相繼損壞十幾個(gè)壓力變送器(德國HYDAC)，請較高人分析原因?
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wsir123
日子在忙碌中才會(huì )顯得充實(shí)，我喜歡這樣的生活。
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1樓  發(fā)表于: 2009-10-09 16:34
范圍是0-20ma？4-20ma？每個(gè)壞都是什么故障現象？沒(méi)壓力也輸出22ma？模擬量接口是不是匹配？
保持每天一點(diǎn)小進(jìn)步足矣。。。

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