The use of hydraulic pressure gauge mainly includes the following points:
Installation and maintenance of the pressure guide pipe: the thickness of the pressure guide pipe should be moderate, the general inner diameter is 6-10mm, length should be as short as possible, the longest is not more than 50m, to reduce the delay of pressure indication. When installing the pressure pipe horizontally, ensure that the inclination of 1:10~1:20, to facilitate the discharge of the accumulated liquid. When connecting the pressure gauge and the pressure guide pipe, should be installed with appropriate sealing gaskets, generally available asbestos sheet or aluminum sheet, high temperature and pressure can be annealed copper or aluminum gasket. at the same time, to consider the influence of the medium, for example, measuring oxygen pressure instrument can not use gasket with oil, when measuring acetylene pressure prohibited copper gasket, etc. 1.
Pressure gauge placement and use: pressure gauge should be placed vertically, when installing to tighten with a wrench, avoid directly by hand to avoid damage to the outer case. During use, should be careful to control the amplitude below one millimeter. At the same time, pay attention to the external environment temperature, control between -25 to 55 degrees, to ensure the normal work of the pressure gauge 2.
Regular inspection and maintenance: pressure gauge should be checked regularly, at least once every three months, timely detection and repair of any faults. The indicating range of the pressure gauge in use should be controlled between 1/3 and 2/3 of the maximum value to ensure the accuracy of measurement