| Results found for: 4-20 mA |
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| 4-20 mA |
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(4 to 20 MilliAmp) A point-to-point or multi-drop circuit mainly used in the process automation field to transmit signals from instruments and sensors in the field to a controller. It sends an analog signal from 4 to 20 mA that represents 0 to 100% of some process variable. As a current loop signal, 4-20 mA also powers the sensor transmitter on the same wire pair, and 4-20mA provides more resistance to interference than a voltage-based line. See HART.
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Entries before 4-20 mA
3NF
3rd party
3RU
3U
3XRTT
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Entries after 4-20 mA
4-pass color
4-pass color printer
4-way
40 Gigabit Ethernet
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