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# Digital Multimeter Tutorial

### Digital Multimeter Tutorial Learning Center

A digital multimeter (DMM) is an electrical measurement instrument that can be used to troubleshoot a wide range of electrical problems. A typical digital multimeter will have the ability to measure volts, ohms, and amperes.

The digital multimeter tutorials found here will provide you with some fundamental information to select a digital multimeter and how to get the most out of your Tektronix / Keithley digital multimeter, including how to make accurate resistance measurements and how to easily calculate measurement statistics.

Poster: Top 5 Digital Multimeter Questions from Users
Answers to the most common DMM questions, including: How do I make my DMM measure faster? What is the difference between sensitivity, resolution & accuracy?
10 Steps to Digital Multimeter Selection
Digital multimeters seem common, but specialized versions perform tests you might not imagine, thereby improving productivity and lowering costs. Read the 10 steps for selecting a DMM.
Tips and Techniques for Efficient DC Testing and Current-Voltage Characterization
This e-guide explores some of the most common DC current vs. voltage (I-V) tests being performed today, the seemingly inherent complications posed by each, and how new techniques can help to not only overcome these challenges but enhance efficiency and productivity.
How to Make Simple and Accurate Resistance Measurements
Using two wires to measure resistance is convenient, but causes measurement error. Learn how you can enable four-wire resistance measurements with just two leads.
How to Accurately Measure Nanoamperes
Accurately measuring low-level leakage currents in the nanoampere range is a challenge for most digital multimeters. Learn tips on measuring standby current and how to accurately measure nanoamperes.
How to Use Measurement Statistics and Histograms
Measuring the output voltage of a power supply is a common measurement on a digital multimeter. However, taking that measurement and understanding how stable the output of the power supply requires time-consuming and often complex measurement statistics. Learn how you can simplify calculations of measurement statistics when analyzing your device.
Datalogging with TrendPlot™
Troubleshooting elusive problems requires logging large quantities of data or tracking measurement trends over time. Learn how the unique capabilities of TrendPlot™ on the Tektronix DMM4050 and DMM4040 can be used to simply address this.