说明:西门子双极性换算关系 4-12-20mA,假设电流电压比800/5,6300/100, 采样原值X,实际工程值Y,注意:12MA工程值理论是为0,可适当减零漂(SIEMENS bipolar conversion between 4-12-20mA, assuming the current voltage ratio 800/56300/100, sampling value X, value engineering Y, atten <ANLI61
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