用电动差压变送器测量0-0.01MPa的差压信号时,输入输出信号的对应关系是。
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用电动差压变送器测量0-0.01MPa的差压信号时,输入输出信号的对应关系是。
A.0Mpa对应0mA,0.01MPa对应20mA
B.0Mpa对应4mA,0.01MPa对应20mA
C.0Mpa对应0V,0.01MPa对应20V
D.0Mpa对应1V,0.01MPa对应5V
参考答案: