機械壓力開關的原理與調節方法
一、機械壓力開關的原理：
當被測壓力超過額定值時，彈性元件的自由端產生位移，直接或經過比較后推動開關元件，改變開關元件的通斷狀態，進而達到控制被測壓力的目的。
二、機械壓力開關的調試方法
1. 機械壓力開關頂部的右側調節螺絲是直接調節上限切換值；
2. 機械壓力開關頂部的左側調節螺絲是調節開關壓差；
3. 它們的關系是：上限切換值-開關壓差=下限切換值，當用戶想要調節下限切換值時，要通過在標尺上調節右側螺絲與左側螺絲。
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