Why 4 - 20 mA is used ?

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Instrumentation Unlimited

Instrumentation Unlimited

Күн бұрын

This video describes why series current loop signal 4 to 20 mA is used as standard field instrument Analog Signal vs 0 to 20 mA, and 0 to 10 V across industries and the basic fundamentals behind making it standard. @Instrumentation Unlimited
4 to 20 mA is mostly used analog signal for transmission from the transmitter to the controller or to PLC/DCS. This signal was among the other available signal such as 0 to 20 mA, 10 to 50 mA, 0 to 10 VDC, and 0 to 5 VDC which emerged when electronics were replacing pneumatic instrumentation. But 4-20 mA has some advantages over other systems This video tells why 4-20 mA loop is adapted over others and how it works. Any queries or doubts may be posted in the comment section.
ref links
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#analog #analogcommunication #instrumentation

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