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JJG132-87金属管转子流量计检定规程已于1987年10月起施行。本文就规程编制过程中的几个问题作一说明。一、编制的原则与技术要求本规程的编制除了按国家计量检定规程编写的有关规定处,还参照了国内外有关规程及标准,并分别用水和空气作介质做了大量的验证测试,得到准确的试验结果。本规程规定气远传式的气源应是去除油、水、灰尘和杂质的压缩空气,压力为0.14MPa±10％;电远传式的电源频率为50Hz,电压为220V±10％(AC) 或24V±5％(DC) ;气远传式输出信号的范围为0.02～0.1MPa;电远传式输出电流信号范围为0～10mA(DC),4～20mA(DC)。流量计应在上述规定指标范围内
JJG132-87 metal pipe rotor flowmeter test procedures have been implemented in October 1987. This article on the process of preparation of a few problems to make a description. First, the preparation of the principles and technical requirements In addition to the preparation of this procedure according to the national metrological verification procedures prepared by the relevant provisions, but also with reference to the relevant rules and standards at home and abroad, and water and air as a medium to do a lot of validation tests, accurate Test results. The regulations stipulate that the gas source of far gas transmission shall be compressed air with oil, water, dust and impurity removed, the pressure is 0.14MPa ± 10%; the power supply frequency of the electric far type is 50Hz and the voltage is 220V ± 10% (AC ) Or 24V ± 5% (DC). The range of gas remote output signal is 0.02 ~ 0.1MPa. The range of electric remote output current signal is 0 ~ 10mA (DC) and 4 ~ 20mA (DC). Flow meter should be within the above target range