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随着我国现代钢铁、电力、煤炭等工业,特别是现代化学、合成石油及塑料等工业部门的迅速发展,压力和真空测量仪表的使用,日益普遍. 普通压力表(多数是单圈弹簧管压力表,精度多为1.5,2.5,4级)因结构简单,价格低廉,使用维修方便等原因而被广泛用作现场直接安装指示压力,仪表的正确安装和使用对于保持其示值准确性及延长使用期限有很重要地作用,因此,仪表正确地安装和使用也是保证工业生产过程正常进行的重要环节,必须给予高度重视.
With the rapid development of the modern steel, electricity, coal and other industries in our country, especially in the modern chemical industry, synthetic petroleum and plastics industries, the use of pressure and vacuum measuring instruments is increasingly common.General pressure gauges (mostly single coil spring tube pressure Table, the accuracy of 1.5,2.5,4 level) due to simple structure, low cost, easy maintenance, and other reasons are widely used as the site direct installation instructions pressure, the correct installation and use of the instrument in order to maintain its accuracy and extension of the indication Therefore, the proper installation and use of the instrument is also an important step to ensure the normal operation of the industrial production process. Therefore, great attention must be paid to the use of the instrument.