哪些情況不可使用壓力表
來源:編輯YY 時間:2015-03-13 08:29 點擊:次
壓力表是精密儀器儀表,它的使用直接影響到了生產(chǎn)的安全,當(dāng)有異常現(xiàn)象存在時,使用單位應(yīng)及時停止使用。下面小編簡單歸納了哪些情況下不可使用壓力表。
1.沒有任何銘牌標(biāo)志的或者銘牌上未標(biāo)注該壓力表的生產(chǎn)日期、生產(chǎn)廠家、該壓力表的型號等信息。
2.該壓力表沒有封印、封印損壞或者校驗有效期限已經(jīng)過期。
3.壓力表內(nèi)出現(xiàn)指示不靈、指針?biāo)蓜印⒅羔樚鴦印⒖潭炔磺濉⒅羔槻换亓阄坏裙收蠒r。
4.壓力表的表面玻璃破碎或表盤刻度模糊不清;
5.壓力表在無壓力時,,指針轉(zhuǎn)動后不能回到限止釘處;而沒有限止釘?shù)膲毫Ρ碓跓o壓力時 ,指針離零位的數(shù)值超過壓力表規(guī)定的允許誤差。
6.最后,除了上述歸納的要點外,如果還存在其他影響壓力表準(zhǔn)確指示的缺陷時,使用單位也應(yīng)及時停止壓力表的測量工作進行檢定。
西安仕樂克控制器制造有限公司 (www.a3025.cn)
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精密壓力表的使用注意事項
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