⎝⎛星力捕鱼⎞⎠

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Industry Information
Analysis of common faults in the pressure calibration process
2011-9-16 9:33:28

校验过程中的注意事项: Attention during the calibration of the pressure gauge :
该没有 油质 腐蚀性物质以及其它 杂质, 要不然 将影响仪器正常工作。 1. The connected standard instruments and calibrated instruments should be free of oily and corrosive substances and other impurities, otherwise it will affect the normal operation of the instrument.
,系统必须 处于零压状态。 2. When removing the pressure gauge , the system must be at zero pressure.
转换真空或 压力 ,系统 必须处于零压状态。 3. When changing the vacuum or pressure , the system must also be at zero pressure.
及处理 方法 Common faults and solutions
手压泵 有空压的感觉 1 , can not hit the pressure, hand pressure pump feels air pressure
有两点 1 换向阀 换向不到位,产生漏气现象 ;( 2 正压单向阀或 负压单向阀运动之后没有 完全 复位,造成空压 现象。 There are two reasons : ( 1 ) the reversing valve is not in place, causing air leakage ; ( 2 ) the positive pressure check valve or the negative pressure check valve is not completely reset after the movement , resulting in the phenomenon of air pressure .
方法: 必须要 换向阀换向到位。 Solution : The directional valve must be switched in place.
2.The pressure regulating pump cannot be pressurized
方法:检查调压泵内密封圈 是不是 损坏。 Solution : Check whether the sealing ring inside the pressure regulating pump is damaged.
一边没有压力输出 的现象 3.No pressure or no pressure output on one side
方法:检查输出端口 是不是堵塞 Solution : Check whether the output port is blocked .
4.The negative pressure is not up to standard
方法:应 根据当地实际大气压判断仪器 是不是 正常 Solution : The instrument should be judged according to the actual atmospheric pressure in the local area.