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  1. jman03

    Variance in 4-20 mA measurement

    I am using an analog signal retransmission device to send a 4-20mA signal to a pair of VFD's. When I place a multimeter in series with the loop, it reads approx. 15mA which would be consistant with the process. The problem is that the VFD's are seeing a 21mA input. When I measure the voltage...
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