Power converter
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Can a multimeter be used to measure the 4-20mA output of a current converter? How to measure it? Thanks
I think it might be possible to disconnect the output terminal of the power converter and use a multimeter’s current setting to measure the output. The device is currently working, but I want to give it a try once it stops running. Could experts give me some advice?
Yes, you can simply use the ammeter function on a multimeter to measure it. As long as the internal resistance of the multimeter is low enough, parallel measurement can also be considered. It’s just that the error is a bit larger.
Fluke has dedicated instruments for measuring 4-20Ma signals without having to disconnect the circuit.
It’s possible; ordinary multimeters can measure current, down to the milliampere range. Be careful with the position of the test leads. It’s better to disconnect one of the circuit connections during measurement, and reattach it after the measurement is complete. Make sure to set the multimeter to the voltage setting and adjust the test lead positions after the measurement, in order to prevent damage to the multimeter when measuring other values