Touch, Test Invent: Keithley Touchscreen UI · 29:36 ; Count On More Than Digits ; Model 7001 Switch System Setting Identity for Older Switch Cards ; Model 2700 Multimeter-Data Acquisition System Setting the Time and Date
Jump to a section ; What is a digital multimeter used for? · Types of digital multimeters · How to choose a digital multimeter · How to use a digital multimeter · Digital Multimeter vs. Oscilloscope · Digital multimeter resources · Frequently Asked Questions (FAQ)
Set the multimeter to the ohms setting. Turn the large knob on your multimeter to the ohms position, which might also be represented by the Ω symbol. This setting measures electrical resistance and shows you if any fuses are faulty.[1] ; Plug the red lead into voltage-ohm jack. Find the voltage-ohm input on the front of the multimeter, which is usually on the right side. It might be represented with a VΩ symbol. Take the input side of the red lead and plug it into this jack.[2] ...
Test AC or DC voltage. In general, V indicates voltage, a squiggly line indicates alternating current (found in household circuits), and a straight or dashed line indicates direct current (found in most batteries). The line can appear next to or over the letter.[1] ; Set the multimeter to measure current. Because current is measured in amperes, it is abbreviated A. Choose direct current or alternating current, whichever the circuit you are testing is made for. Analog multimeters typically do not ...
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On a multimeter, voltage settings are typically indicated by the letter V, with DC being indicated by the letters DC or a symbol consisting of a straight line over a dotted line. AC is...
Reference Materials · How to Use a Multimeter ; Figure 1. A typical multimeter. Figure 2. In a basic series circuit (left), each element has the same current (but not necessarily the same voltage; that will only happen if their resistances are all the same). In a basic parallel circuit (right), each element has the same voltage (but not necessarily the same current; that will only happen if their resistances are all the same). Figure 3. The multimeter on the left is manual-ranging, with many different options (indicated by metric prefixes) fo ...
Turn off your appliance or unplug it. ; Move the multimeter dial to the continuity setting. It generally has five curved lines that increase in length. ; When measuring for continuity, one probe should be plugged in to the multimeter port labelled Ω, and the other plugged into the port labelled COM. ; Press the probes together to test if your multimeter is working properly.
Understand fuses. Fuses are really just wires that are designed not to last, but their purpose is to prevent damage to more valuable electrical equipment or prevent fires (especially in homes) caused by power surges. If too much power runs through the fuse, it will "burn out," quite literally, and open the circuit, preventing the current from flowing through the circuit. There are several varieties of fuses, but their differences are primarily in appearance. Here is a description of the two you ...
Set the multimeter dial to AC or DC mode. The symbol for direct current (DC) is a V with 3 dots or a dash above it. It can also be labeled as DCV or something similar. An alternating current (AC) setting is often labeled with a V and a squiggly line or initials like ACV. Turn the dial to the type of current you plan on measuring.[1] ; Select the voltage range if it can be set manually on the dial. On some multimeters, you will see a bunch of numbers around the dial. If yours has these numbers, r ...