What 4-20mA actually means (and why your zero is at 4)
Most industrial sensor data still travels as a current between 4 and 20 milliamps. What the signal is, how it becomes a number in your database, and the ways it can quietly be wrong.
Most industrial sensor data still travels as a current between 4 and 20 milliamps. What the signal is, how it becomes a number in your database, and the ways it can quietly be wrong.