![]() ![]() Like the water gauge, your multimeter is a comparative device. Likewise, electrical potential is the amount of force in a circuit available to push the electrical current if allowed to flow. The gauge compares the pressure inside the hose with the atmosphere outside and tells you the difference in psi. In the water hose example, a pressure gauge calculates the force so you know the strength of the water current if allowed to flow. The hose is now under pressure, isn’t it? There is a force being applied even though there is no flow. Imagine turning on a spigot but closing the nozzle at the end of a hose. The greater the force, the higher the voltage. We measure water pressure in psi.Įlectricity is also “pushed” by a generator and we measure that “pressure” in volts. Somewhere a pump is pressurizing that water so it flows with force. Is it just running out the end from gravity, or is it being pushed? Think of water flowing through a garden hose. Voltage is easier understood as “pressure”. This protects the wire from overheating which would be a bad thing.Īnyway, your multimeter, correctly used, can help you diagnose and repair many of these troubles. Fuses and breakers are designed to open the circuit If they sense that too much current is flowing through that circuit. Or, the circuit breaker could simply be doing its job. One reason could be a loose connection or damaged wire. Just so you’re aware, the neutral wire will be white.Īs you know, if the circuit of current is ever broken, electricity stops flowing and lights, outlets, etc quit working. The current flows around that “circle” in a circuit beginning at the breaker or fuse in your electrical box and then returning on the neutral wire. ![]() If this word sounds like the word circle, that’s because it’s analogous to a circle. CircuitsĮlectricity performs work for us when it travels in a circuit. ![]() A quick refresher will help you learn how to use and read a multimeter without difficulty. Troubleshoot any electrical problems in your home, car, or personal devices.īasics of Electricity and Electrical UnitsĮlectricity can be a complicated subject, and we understand how confusing it may sound when we talk about circuits, beakers, amps, and volts.You can also use it to test old batteries, extension cords, and light bulbs without plugging them in.Test switches, outlets, and power cables to see if there are any problems.If your car is having trouble starting, you can check the ignition voltage with your multimeter.Use a multimeter in your HVAC unit to make sure the compressor is getting the right amount of electrical power.Measure current to prevent breakers from tripping in your house.Check the resistance of fuses in your car or appliances.Now the multimeter is a pretty impressive tool that has a wide range of applications for several professions or purposes: The steps above tell you how to use and read a multimeter in safe conditions. Your multimeter, by itself, is a safe piece of equipment. Wear protective equipment such as goggles, gloves, and long sleeves.Make sure your work area is well-lit (sunlight and battery-powered lights) and cleared of obstructions so that you can move freely.Most electrical work should be done with the breakers off. Always know where your breaker box is and clearly label the individual breakers.If you have some simple electrical work to do around the house, and you don’t want to hire an expensive electrician, why not give it a try yourself?īefore starting this type of work, take a few precautions for your own safety. So why is this tool called a multimeter? Well, it’s because it’s a combination of a voltmeter, ammeter, and ohmmeter giving you the power to measure: How to Measure Current with a Clamp Meter How to Use and Read a Multimeter to Measure VoltageĨ. Basics of Electricity and Electrical UnitsĦ. With this easy-to-use device, even a beginner can measure critical electrical characteristics of their appliances, outlets, fixtures, and breaker box.Ĥ. It’s pretty popular, so I thought I would let you know about that. It’s very informative and explains why I use each. I hope it helps you choose the right one for your needs.Īnd, just in case you have an interest, here’s my master list of electrician tools. Please check out our article on the best multimeters. Not only is a multimeter the nuts and bolts for an electrician, but also for any homeowner who wants to check the wiring around their house, or pull off some of their own electrical projects. Or just better understand how to use your multimeter on the job. When we’re done, you’ll have a firm grasp on the essential functions and benefits of this indispensable tool so you can bang out those projects you’ve been putting off. Get ready! We’re going to start out with the basics of how to use and read a multimeter. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |