壓力開關出現故障應如何處理
來源:編輯YY 時間:2014-05-23 15:30 點擊:次
壓力開關如果出現故障,我們應從以下出現的故障現象來一一分析:
一、如果是壓力開關靈敏度差,則應檢查:
①是否是螺釘和頂桿等調節不當引起:應合理調整螺釘和頂桿位置;
②是否是微動開關接觸行程太長:應合理調整微動開關的接觸行程;
③裝配不良或傳動機構(頂桿或柱塞等)摩擦力過大:應重新裝配,使動作靈敏;
④是否有不平和傾斜的安裝:應水平或垂直安裝。
二、如果是壓力開關無輸出信號,則應檢查:
①檢查與微動開關相接的導線觸頭是否連接好:若未連接好,則應重新連接確保接觸良好;
②檢查微動開關是否損壞,若發現有損壞:應立即更換微動開關;
③檢查開關設定值是否調得過高:應調整到適宜的設定值;
④感壓部分是否裝配不良:應重新裝配,使動作靈敏;
⑤檢查感壓元件是否損壞:若有損壞,應更換感壓元件。
三、若是壓力開關發信號過快的現象,則應檢查:
①隔離膜片是否碎裂:若有碎裂,應及時更換隔離膜片;
②系統沖擊壓力太大:在控制管路上增設阻尼管,以減弱沖擊壓力;
③進油口阻尼孔大:阻尼孔適當改小,或在控制管路上增設阻尼管;
④電氣系統設計有誤:按要求設計電氣系統。
西安仕樂克控制器制造有限公司 (www.shelok.net)
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