如何檢查壓力開關(guān)傳感器
來(lái)源:編輯YY 時(shí)間:2014-10-07 08:08 點(diǎn)擊:次
壓力傳感器是壓力開關(guān)最重要的檢測(cè)信號(hào)元件,二者之間有著不可分割的聯(lián)系,(具體可閱讀:壓力傳感器與壓力開關(guān)的聯(lián)系)當(dāng)壓力傳感器出現(xiàn)異常時(shí),就會(huì)引起壓力開關(guān)無(wú)輸出或者信號(hào)輸出不正常的情況,所以確保壓力傳感器正常是一件尤為重要的事情。今天小編就告訴大家如何檢查壓力開關(guān)的測(cè)量元件---壓力傳感器。
首先需要拆下壓力開關(guān)的接頭—法蘭,檢查敏感部件的隔離膜片是否有變形,破損的現(xiàn)象發(fā)生,然后觀察地面上是否油,如果有那就可能是出現(xiàn)了漏油現(xiàn)象。
然后再接著拆下補(bǔ)償板,拆的同時(shí)不需要取出敏感部件,檢查壓力開關(guān)殼體的絕緣電阻,在電壓正常的情況下,絕緣電阻應(yīng)不小于100。
上述兩個(gè)檢查都完成以后,開始接通電路,給壓力開關(guān)施加壓力,當(dāng)壓力開關(guān)的壓力信號(hào)達(dá)到了量程的上限值時(shí),關(guān)閉電源,查看電壓輸出值是否穩(wěn)定,如果有下降現(xiàn)象,那就可能是壓力傳感器存在了泄露情況,需要及時(shí)找到泄露部位。
西安仕樂克控制器制造有限公司 (www.a3025.cn)
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