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Can I use a 4-20 mA sensor with the 0-20 mA analog inputs?

April 26, 2017analog inputs ma sensor

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Can I use a 4-20 mA sensor with the 0-20 mA analog inputs?

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Yes. When using a 4-20 mA sensor with a 0-20 mA input, the sensor uses the 4-20 mA section of the total range. Using a 4-20 mA with a 0-20 mA input allows you to determine when you have an error condition with the sensor. A normal input reading between 4 and 20 mA indicates a functioning sensor whereas a value below 4 mA indicates an error condition, such as a broken wire or loose connection. Some DX80 SureCross devices allow you to configure the analog inputs and outputs to use either 0-20 mA or 4-20 mA. For a one-page technical note on this topic, download the Using 4-20 mA Sensors with 0-20 mA Analog I/O document.