如何提高壓力開關的測量精度
在壓力開關實際操作過程中，能夠實現精確測量、精確控制是壓力開關最重要的使命。那么為了日后壓力開關測量精度更加精確可靠，在選購了壓力開關之后，應該嚴格按照標準來安裝。
壓力開關脈沖管（直接與工藝介質相接觸的一種管道）的長度應盡量挑選短的且內直徑應足夠大，而兩根脈沖管之間的溫度應保持相同。當壓力開關測量液體或蒸汽時（此時應確保管道中沒有氣體），脈沖管應向上連接到工藝介質，且傾斜度應大于1/12，如果要采用隔離液，兩側管道內的液體應為同種液體；當壓力開關測量氣體時，脈沖管應向下連接到工藝管道，傾斜度與向上連接時一樣。壓力開關測量完畢之后，如需使用潔凈劑，應盡量避免潔凈劑進入到變送器中。
為了后期壓力開關能獲取到精準的測量精度，進而更好的控制壓力，以上的安裝步驟是必不可少的。
西安仕樂克控制器制造有限公司 (www.shelok.net)
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