uCurrent - A professional precision current adapter …

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The current a professional precision current adapter for Multimeters By David L. Jones (Copyright 2010 David L. Jones Freely distributable in the original unaltered PDF format ONLY) A current adapter for multimeters? But don t most multimeters already have current measurement ranges? I hear you ask. Well, yes, they do of course. But most multimeters, be they a no-name $10 hardware store throw-away model, or a $1000 highly accurate brand name meter, all suffer from two rather annoying issues with their current measurement ranges - burden voltage and reduced accuracy. Burden Voltage The biggest problem with current measurement ranges is called burden voltage.

At small displayed currents the burden voltage is usually not an issue, but at larger displayed currents (relative to Full-Scale) the burden voltage can be very high, even in the order of several volts!

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