Review of YB5140 50A DC Current Meter with 75mV Shunt resistor - RJT333

Published at : 23 Dec 2025

In this tutorial we learn how to use the YB5140 50A DC current meter which uses shunt 75m shunt resistor. We test with currents from 1A to 50Am, open the meter and look into the components and also show you how to calibrate it.



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Jump to different section of video by clicking on the time:

00:00 Start

00:48 Hardware Explained

04:13 Looking Inside the meter

07:44 Wiring Explained

09:44 Demonstration of measuring current

11:28 Calibrating the meter

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Tutorial by Ahmad Shamshiri form Canada

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