Auto and Manual Range of the multimeter
When choosing a digital multimeter, you need to know the minimum range, maximum range, and resolution you need.
Autoranging measurement
In an autoranging measurement, all you have to do is select the desired measurement function and let the multimeter automatically select the most appropriate range. In general, you should choose autoranging when you do not know the range of possible measurement readings. One thing to note, auto-ranging measurements are more time-consuming than manual-ranging measurements, as the multimeter needs to select and display the best measurement results, so it consumes extra time.
Manual range measurement
Manual ranging measurements are usually chosen when you know the expected measurement value. Depending on your measurements, you can choose a range. If you don't know the measured value and you want to use manual ranging, it is recommended that you use the "step down" method. Start with the highest range and gradually decrease the range until the best resolution is achieved on the display.
