how to use a multimeter for dummies
AC voltage, AC current (not all basic meters have this function), Resistance, Continuity – indicated by a buzzer or tone Next, place one lead on one end of the object, and the other lead on the other end. AC = Alternating Current. It is basically a handheld device that uses voltage measurement as a base to convert and measure analog electrical inputs (current, voltage, temperature) into digital outputs (values). • VΩ allows you to measure voltage and resistance and test continuity Required fields are marked *. Save my name, email, and website in this browser for the next time I comment. Required fields are marked *. This should be about 0.6 volts for a silicon diode and about 0.2 volts for a Schottky diode. One will go into the COM, or Common, connection. Ports Capacitance measurement At the very basic level you have the device itself, along with two probes, which are the black and red cables that have plugs on one end and metal tips on the other. • Place the tip of a probe at each end of the conductor or fuse which needs to be checked M (Mega) = 1,000,000 (used for ohms readings) A continuity test tells us whether two things are electrically connected: if something is continuous, an electric current can flow freely from one end to the other Diode test A multimeter is a testing tool that allows measurement of various electrical quantities such as voltage, resistance, and current in a single unit. • Plug the black probe into the COM port on your multimeter. • To measure current you need to bear in mind that components in series share a current. Digital multimeters (DMM, DVOM) have a numeric display, and may also show a graphical bar representing the measured value. • If the display indicates “I”, this means that resistance is greater than can be displayed on the range setting you have selected, so you must turn the dial to the next highest range. Whether it is testing, measuring, or troubleshooting that you hoping to use a multimeter for, this basic guide will come in handy. Continuity! The number and type of batteries required will vary from model to model. How to Test a Car Battery With a Multimeter? The dial is currently pointing to 200 ohms, the lowest possible range for resistance in this unit. The digital multimeter has proven much more accurate, reliable and increase impedance. This may involve pulling off spade leads or desoldering. Repeat this until a value is displayed. Thank you so much. • To begin, make sure no current is running through the circuit or component you want to test. The mains supply in a home is AC (the symbol for alternating current amps could appear as ~A, A~ or Ã). • Turn the selecting dial on the meter to the continuity range. Frequency What is a Domain?| Beginner Guide. But before jumping into the process on how to use a multimeter for dummies, let us first learn the basics. Continuity is one of the most useful tests for electronics repair. A multimeter when connected to a working diode indicates the voltage across the component. In the journey of my career I realist a multimeter is the most important but underrated equipment, a proper guide on how to use a multimeter, a technician can diagnose and solve almost any problem. Insert batteries into the multimeter. For example, if you’re measuring a 15 V circuit and your multimeter has 2 V, 20 V and 200 V settings, you’d choose the 20 V setting. Your email address will not be published. How to start your own appliance repair business and earn income. Use this guide on resistor color codes. In the case of an analog multimeter, the display section is usually a scale with a pointer on top of it that moves left and right. Probes: Since DMMs may display very large or small numbers, symbols will be used to clue the user if a number displayed (5, for example) should be multiplied or divided by a certain factor. • Touch the other red probe against the second point of test. The display now shows a proper value: 671 ohms. In the journey of my career I realist a multimeter is the most important but underrated equipment, a proper guide on how to use a multimeter, a technician can diagnose and solve almost any problem. • If the meter reads “1” when the probes are placed either way, the diode is likely to be faulty and open circuit. take the reading while the ignition is ON to properly gauge the battery’s stand. NOTE: if you switch the probes the the readings of the multimeter will give a negative value. Display: This the screen of a multimeter where measurements are displayed, Sophisticated modern models may feature larger screens that allow them to include an oscilloscope function, displaying waveforms graphically as well as numerical data. • Plug the black probe into the COM port on your multimeter • If there is break in continuity in the device being tested, an overload indication, usually the digit “1”, will be displayed on the meter. Temperature with an additional probe And if you are a newbie, today we are going to show you how to use it. Set the multimeter to "2V" in the DC (direct current) range. Hi Chuck – Thanks for letting me know you liked the site, hope you got what you were looking for! • Plug the red positive probe lead either into the mA socket or the high current socket which is usually marked 10A (some meters have a 20 A socket instead of 10A). Multimeters are used in all areas of electronics to determine the voltage, amperage or resistance in an electrical circuit. Your email address will not be published. Change the range to get the accurate value. 2. Whether it is testing, measuring, or troubleshooting that you hoping to use a multimeter for, this basic guide will come in handy. • µAmA is used to measure current A multimeter consists of the following panels/sections (from top to bottom): There are may more bells and whistles in modern high-end multimeters, but explaining all of them is out of the scope of this guide. So, you need to connect your multimeter in series with your circuit. A multimeter can be used to measure voltage, current, resistance, continuity and other parameters. • Plug the red probe into the VΩmA port. Although different types are available in the market, most technicians prefer the speed and convenience of DMMs over analog multimeters. In our case, when the range switch is at 200 ohms, the display is showing 1. A diode is an electronic one way valve or check valve, which only conducts in one direction. An Analog multimeters use a microammeter with a moving pointer to display readings. If it shows a single value (usually a 1), then change the range. You can experiment with this process by using resistors of different values and noting down their respective resistance. Move the dial to the next range up until you get a valid reading. • Touch the tip of the negative probe to one end of the diode, and the tip of the positive probe to the other end. How to measure current with a digital multimeter Get hold of a strip of resistors from an electronics shop or use one that you may already have at home/lab. Voltmeter, ohmmeter, and ammeters are other common types of an analog multimeter. Multimeter Probes - Tweezers TOL-11060 $4.95 5 Favorited Favorite 14 Wish List Measuring Voltage To start, let's measure voltage on a AA battery: Plug the black probe intoCOM and the red probe into mAVΩ. How To Trade in CHYMALL VIP2, VIP3, VIP4, VIP5 (THE RIGHT WAY), Everything you need to know about CHYMALL, What is a URL? The mA socket is often marked with the maximum current and if you estimate that the current will be greater than this value, you must use the 10 A socket, otherwise you will end up blowing a fuse in the meter. You can use a battery to test voltage and current. DUMMIES GUIDE ON HOW TO USE A MULTIMETER LIKE A PRO IN JUST 1 HOUR. DC = Direct current. After that, we will go through the beginner’s guide to setting up and operating a multimeter. Ω = The Greek alphabet symbol for Omega is used for ohms, or electrical resistance If you have a manual multimeter, you’ll also have to select the voltage range of the object you’re about to measure. As an Amazon Associate, we earn from qualifying purchases. DUMMIES GUIDE ON HOW TO USE A MULTIMETER LIKE A PRO IN JUST 1 HOUR. These determine the ranges of magnitude. Hi Paul – Thanks for the kind words – always great to hear what I’ve been through is of some help to someone starting out – I wish you the very best of luck in your new business! • If a component is in circuit, resistances in parallel will affect the reading and the meter may not indicate “1” but a value somewhat less. Special Tools Needed for Appliance Repair, 9 Reasons Why Appliance Repair is a Good Career Choice, Appliance Repair School: What to Consider Before Enrolling, 14 Must-Have Appliance Repair Tools (2020), YouTube's Effect on the Appliance Repair Business. A digital multimeter can test diodes using one of two methods: • Determine if the current to be measured is ac or dc Also note the range for each function, which is an important part of the multimeter. After that, we will go through the beginner’s guide to setting up and operating a multimeter. 3. This video on YouTube THOROUGHLY reviews multimeters that sell for $50.00 or less. The above list should be enough for beginners to start experimenting with their new meter. This is often indicated by a symbol which looks like a series of arcs of a circle Your email address will not be published. • Touch the black probe against the first point of the circuitry • You can measure DC voltage or AC voltage. Now that you have a basic idea about the multimeter, we will use a simple example to show how to use it. Since batteries have direct current, select the DC voltage/current function and use the probes. In the journey of my career I realist a multimeter is the most important but underrated equipment, a proper guide on how to use a multimeter, a technician can diagnose and solve almost any problem. Switch it off, unplug it from the wall, and remove any batteries i.e if you want to test the resistance of the whole circuit but If you want to test an individual component such as a resistor disconnect one end of the component if it’s in a circuit. It is for this same reason that we have used a DMM to create this guide. Yes, we are talking about the ubiquitous multimeter, the one tool that an electrician never leaves his/her house without. • Plug the black probe into the COM port on your multimeter. This is basically how you use a multimeter to test resistance. A multimeter is an essential tool in appliance repair, so you’re going to have to learn to use one. • make sure no current is running through the circuit or component you want to test. If you want to test another quantity, you can do it by switching to the correct function and repeating the process through steps 4, 5, and 6. Analog and digital multimeter. How to Use a Multimeter For starters, lets go over some of the different parts of a multimeter. 1. How to Use a Multimeter to Test an Outlet? However, while measuring current and voltage, please ensure that the test probes are connected properly. • If the probes are connected—either by a continuous circuit, or by touching each other directly—the test current flows through. • 10A is used when measuring large currents, greater than 200mA This has the arc-shaped scales visible through the window and a pointer which will indicate the values read from the scale. This guide can be seen as a reference for beginners as we have explained all the points in great detail. LaserLevelHub.net is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.
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