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PcVuMeterSoftwareDemystifying the Multimeter A Beginners Guide. So you just installed an aftermarket part like an electric fan, head unit or security system but now youre stuck on the wiring part. Or maybe youre tired of waking up to a dead battery thats suffering from a parasitic drain of some kind. You frantically search the forums and read a bunch of how to articles and they all tell you to simply use a multimeter to troubleshoot your electrical woes away. The problem is that no one ever talks about how to actually use one of these things. If youre modifying your car or even own one for long enough, sooner or later youre going to have to develop a good relationship with the electrical system. A multimeter is a very handy tool that can help you pinpoint electrical problems, save money on repairs, and also help you install aftermarket parts and accessories the right way so you dont end up overloading your system or having to deal with headaches down the road. There are two main types of multimeters digital and analog. Java Applet Viewer'>Java Applet Viewer. I prefer a digital multimeter DMM because the display screen is much easier to read and theyre more resistant to damage. You dont have to break into your piggy bank either. You can get one for right around 2. The best way to get familiar with your multimeter is to put it to use with some easy exercises so take a moment to read the manual so you get familiar with the parts and settings of your specific unit and lets get started. Multimeter. Alligator test lead accessory optional1. How to Measure Voltage. Vogone Software The Best Software to Remove Vocals Also Gives You Quality Music. After removing vocals from your favorite songs, you want the music to be the same. PCDIMMER ist eine FREIE und KOSTENLOSE Software, die auch im QUELLTEXT verfgbar ist. Sollten Sie Geld fr diese Software bezahlt haben, sind Sie vermutlich einem. This is probably the function youll use the most as a DIY auto enthusiast and comes in handy for troubleshooting a variety of electrical issues and identifying 1. V power sources. In this exercise you can either choose to measure the voltage of your car battery or a household AA. Plug the black probe into the COM common jack and the red probe into the m. AV jack this jack may be labeled differently on your unit. If you choose to go with your car battery, turn the dial on your multimeter so its set to 2. V in the DC range DC is the V with the straight line next to it, AC is the V with the wavy line. If youre measuring a AA, then set your multimeter to 2. V. Now why do we have to use different voltage scales for the car battery versus the AA Most multimeters are not autoranging so you have to set it to the range you expect to measure. A setting of 2. V will measure voltages up to 2 volts while a setting of 2. V will measure voltages up to 2. If youre unsure of the voltage, the best thing to do is start at the highest scale to find the approximate value of the voltage. Then select the optimum range according to that number. This ensures your unit doesnt receive a higher voltage than expected and safeguards it from getting damaged. Youll know when youre out of range need a higher setting if you get a reading of 1 that appears to the very left of your screen. You want to set the range as close to the voltage youre measuring as possible for the most accurate reading. So if youre measuring a 1. V battery, a setting of 2. V will be more accurate than a setting of 2. UjgiGRPAok/0.jpg' alt='Pc Vu Meter Software' title='Pc Vu Meter Software' />V. With the multimeter set correctly, touch the black probe to the negative terminal and the red to your positive one. For a car battery on a warm day, a reading of 1. ProLevel.jpg' alt='Pc Vu Meter Software' title='Pc Vu Meter Software' />If it reads less than 1. Your household AA battery should read about 1. Pc Vu Meter Software' title='Pc Vu Meter Software' />If youre out by your car for this exercise lets take it a step further. Turn on the car to test the batterys charging voltage. With the car at idle, you should see a reading of 1. If its less than 1. When testing other circuitry in your car the black probe or clamp should always contact a ground connection and the red one at the connection or point in the circuit where you want to read the voltage. Knowing how to use the voltmeter function of your multimeter is useful for a variety of tasks like identifying blown fuses, broken connections or finding 1. V sources for your aftermarket parts. If you get your blacks and reds mixed up, its no big deal. Torrent Ableton Live Packs here. Youll still get the same numeric reading but it will have a negative sign in front of it. How to Measure Resistance. As the name suggests, resistance measures how much a circuit resists the flow of electric current in ohms. Knowing how to test for resistance and continuity whether or not theres an electrical connection between two points is important when working with fuses, switches, relays, sensors and other components of your car or truck like the ignition coil, lighting, stereo and more. Anytime you measure for resistance or continuity its important that you disconnect the circuit or component from power. The easiest way to do this is to remove the red cable from the battery or remove the object like an ignition coil, light bulb or subwoofer. This protects your multimeter from damage since it has an internal battery thats used to create a current through the circuit or device being tested. Starting with something simple, lets say your headlight or tail light goes out. Some of the headlight bulbs on todays cars can cost 5. Remove the bulb in question from the socket and housing. Never touch the bulb with your bare hands because the natural oils from your skin will cause the glass to overheat and reduce the life of your bulb. If you dont have one handy, we can do the same test on a regular household light bulb. Plug the black probe into the COM jack and the red one into the m. AV one. Just like you did when measuring voltage, flip your selection dial to the ohms side and select the range in which you expect your measurement to be. Nitzer Ebb Warsaw Ghetto Rare. For a car bulb the resistance is generally low so pick one of the lower scales. If youre not sure and youre testing a component like an ignition coil or subwoofer, sometimes it will be printed on a sticker and other times youll have to look it up in a manual or check with the manufacturer. If youre testing fuses, wiring or troubleshooting other circuitry you can also find the correct range by starting high and dialing down until you get an accurate reading. Tail lights typically have 2 contact points at the bottom a tail light filament and brake light filament. A headlight will often have 3 prongs or contacts ground, low beam and high beam. For a tail light, touch your black probe to the metal sleeve of the bulb on the side. Then touch your red probe to each of the contact points. You should get a reading of 1 3 ohms. For a headlight bulb, touch your black probe to the ground contact while testing each of the other two contact points with your red probe. You can test your household light bulb the same way. Touch your black probe to the very bottom of the bulbs sleeve button and touch your red probe to the side of the metal sleeve. If a filament is burned, youll get an infinite reading open circuit and depending on your multimeter youll commonly see OL, OFL or another indication consult your manual. Continuity. Most digital meters are also capable of reading continuity, which is symbolized by speaker or sound cone icon. Sometimes its part of the resistance settings and with other meters its a separate function. This is convenient for testing fuses, troubleshooting broken wires or connections, and any part that needs to pass current. When theres continuity through the part, wire or connection, the meter will beep. You use continuity just like you do resistance but it speeds up the process of testing many wires or fuses because you dont have to keep looking for a reading.