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(1)量程选择。压力表量程的选择不仅要根据被测压力的大小,而且还要考虑被测压力变化的速度,其量程需留有足够的余地。测量稳定压力时,最大工作压力不能超过量程的2／3;测量脉动压力时,最大工作压力不能超过量程的1／2;测量高压时,最大工作压力不能超过量程的3／5;为了保证测量准确度,最小工作压力不能低于量程的1／3。按此原则,根据被测最大压力进行计算,选取的测量范
(1) range selection. The choice of pressure gauge range not only according to the size of the measured pressure, but also to consider the pressure changes measured speed, the range should leave enough room. When measuring the stable pressure, the maximum working pressure can not exceed 2/3 of the measuring range. When measuring the fluctuating pressure, the maximum working pressure can not exceed 1/2 of the measuring range. When measuring the high pressure, the maximum working pressure can not exceed 3/5 of the measuring range. Accuracy, the minimum working pressure can not be less than 1/3 of the range. According to this principle, according to the measured maximum pressure calculation, select the measurement range