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SA406 24V DC Modulating 4-20mA

SA406 is a 24V DC modulating circuit for motorized valves, operated by an analog input signal of 4–20mA.

Wiring Diagram

SA406 24V DC modulating circuit: black supply negative, red supply positive, green signal positive and yellow signal negative — SA406 — 24V DC supply with a 4–20mA analog input.

Wire Connections

Disconnect power before making or changing connections.

Connect the black wire to the negative terminal of the 24V DC power source.
Connect the red wire to the positive terminal of the 24V DC power source.
Keep these two supply wires permanently connected during normal operation.
Connect the green wire to the positive (+) terminal of the 4–20mA signal source.
Connect the yellow wire to the negative (−) terminal of the 4–20mA signal source.