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如何将二线制变送器与三个智能数显表连接
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智能数显表一般有4~20mA和1 ~ 5 V两种输入形式。如果数显表有信号转换输出,一个接变送器,另外两个并联到转换输出;2.如果数显表有信号转换输出,用2-20mA信号串联,但要考虑三表能否驱动。3.使用信号分配器输出多路1-5V信号,同时为变送器供电。
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