4-20 mA
**4-20 mA**
What is 4-20 mA?
4-20 mA current loops are a common industrial signaling standard used to transmit sensor data over long distances. A sensor's measurement is represented by a current between 4 mA and 20 mA, where 4 mA typically represents the zero or minimum value and 20 mA represents the full-scale or maximum value. This method is robust against electrical noise and voltage drops, making it suitable for industrial environments. It is commonly used for pressure, temperature, flow, and level measurements.
What other technologies are related to 4-20 mA?
4-20 mA Complementary Technologies
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