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壓力表

真空壓力表的注意事項

發布日期:2022-10-09 點擊率:44

真空壓力表是一種常用的測量儀器,在很多的領域當中都有一定的應用。用戶在使用真空壓力表的時候需要注意的問題也是很多的。例如測量的范圍、溫度等多種的問題 :

1、儀表使用環境溫度為-40~70℃,相對濕度不大于80%,如偏離正常使用溫度20℃時,須計入溫度附加誤差。 2、儀表必須垂直安裝,力求與測定點保持同一水平,如相差過高計入液柱所引起的附加誤差,測量氣體時可不必考慮。安裝時將表殼后部防爆口阻塞,以免影響防爆性能。

3、儀表正常使用的測量范圍:在靜壓下不超過測量上限的3/4,在波動下不應超過測量上限的2/3。在上述兩種壓力情況下大壓力表測量低都不應低于下限的1/3,測量真空時真空部分全部使用。

4、使用時如遇到儀表指針失靈或內部機件松動、不能正常工作等故障時應進行檢修,或聯系生產廠家維修。

5、儀表應避免震動和碰撞,以免損壞。


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