4 20ma Relay Switch

Current 4 20 ma switch pdw30 point to point wireless process signal bridge the precision digital pdw30 gives you a simple straightforward way to get an analog discrete or modbus signal from where you have it to where you need it.

4 20ma relay switch.

This is the configure relays screen. From here push the relay desired then go to the next screen. A curve is provided on the datasheet showing the relationship between the input current and the output percentage load. It is an ideal method of transferring process information because current does not change as it travels from transmitter to receiver.

Relay 5 setup main action off disable 1. The level of the 4 20 ma signal results in phase trigger control of the load. Jump to latest follow 1 12 of 12 posts. 4 ma to 20 ma solid state relays industrial mount are available at mouser electronics.

From here push the main action button 1 to go to the next screen. 0 0ma indicates an open circuit a failure or a fault mode like cut wires. The ss 240ca solid state relay from conch is a panel mounting solid state relay that allows a 4 20 ma signal to be connected across the input. Go to the product overview for this category.

Joined dec 31 2011 127 posts. The 4 20 ma current loop is the prevailing process control signal in many industries. 4 20 ma standard 4 20ma has an inherent live zero. I ve got a few applications that need a simple relay closure based off of a setpoint on a 4 20ma input.

Zero engineering units is 4 0ma not 0 0ma. Discussion starter 1 jan 4 2012. It is also much simpler and cost effective. This is the relay setup screen.

4 20ma relay switch why 4 20 ma standard is so popular.