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計器検査

2017-02-21View Original

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計器の検査についてですが、なぜ回路内の抵抗値を250オーム以上にしなければHARTを接続できないのでしょうか?
Reply #22017-02-21
題目を見て学ぶために来たのに、返信がなかった
Reply #32017-02-22
テーマは、例えば「回路の直列抵抗が250オーム以上でなければHARTを使用できないのか?」のように変更するのが良いでしょうこのテーマに新しさはなく、サイト内で検索できます
Reply #42017-02-22
へへ、475通信では回路の抵抗値が600オームを超えることが必須です。

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