The most common setup where the transmitter is powered by the loop itself. Two wires carry both power and the signal. Benefit: Saves cable costs and simplifies installation. 3-Wire Connection (Active)
Complete electrical isolation between power and signal. ✅ Why Use 4-20 mA?
Two wires for power and two separate wires for the 4-20 mA signal.
Used when the sensor requires more power than the 4 mA baseline can provide.
If you need a for a specific microcontroller like an Arduino or PLC.
Converts the sensor signal into the 4-20 mA current.
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The most common setup where the transmitter is powered by the loop itself. Two wires carry both power and the signal. Benefit: Saves cable costs and simplifies installation. 3-Wire Connection (Active)
Complete electrical isolation between power and signal. ✅ Why Use 4-20 mA?
Two wires for power and two separate wires for the 4-20 mA signal.
Used when the sensor requires more power than the 4 mA baseline can provide.
If you need a for a specific microcontroller like an Arduino or PLC.
Converts the sensor signal into the 4-20 mA current.