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工具人518
級別: 正式會(huì )員
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發(fā)帖數量: 6 個(gè)
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下載積分: 216 分
在線(xiàn)時(shí)間: 3(小時(shí))
注冊時(shí)間: 2023-04-23
最后登錄: 2024-06-26
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樓主  發(fā)表于: 2023-07-07 14:50
三線(xiàn)制的超聲波液位計，如果線(xiàn)短接了，會(huì )有讀數么？還是燒了，或者直接輸出20mA液位最大值？
黃原古塔
級別: 略有小成
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發(fā)帖數量: 190 個(gè)
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下載積分: 3997 分
在線(xiàn)時(shí)間: 467(小時(shí))
注冊時(shí)間: 2021-10-22
最后登錄: 2025-06-07
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1樓  發(fā)表于: 2023-07-07 15:54
磁翻板液位計我短接試過(guò)，液位計的4-20ma信號經(jīng)過(guò)了隔離柵再接到PLC上，短接的話(huà)顯示滿(mǎn)量程。
vx / tel：19224802024

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