Every electrician apprentice should know the basic functions and how to use a digital multimeter. Whatfirsta multitester is an electronic measuring instrument that combines several measurement functions in one unit. More advanced models can measure capacitance, inductance, and temperature. The most common fault was high voltage transients on high energy circuits. The meter is the part that can show the conversion of analog to digital or simply act as an analog display. A digital multimeter is a test tool used to measure two or more electrical valuesprincipally voltage volts, current amps and resistance ohms.
Digital multitester a piece of test equipme nt used for measuring v oltage, current, resistan ce, and possibly other electrical quantities an d displaying the value i n number form. When it comes to gauges, scales and meters, they are usually primed to measure a few parameters at the most. Signal level, special equipment or parts of equipment, telecommunication, and electronics. Parts of multitester zeroohm adjusting knob scale pointer is a series of markings used for reading the value of a voltage, resistance and current. Jul 31, 2008 the parts are for basic multimeter monitor where you read the results, a frame with with a selector switch ac volt, dc volt, ac amp,dc amp, ohm, selections and scale or what we call multiplier, and 2 probes 1 red, 1 black. A multimeter or a multitester, also known as a vom voltohmmilliammeter, is an electronic measuring instrument that combines several measurement functions in one unit. Every fixer should know their way around a multimeter, which has just north of a zillion uses for testing electronic components and circuits. The instrument features in strong data management facility enabling the user to create custom autotests with predefined limits for passfail evaluation, to import predefined structure including. A multimeter is an instrument widely used by electrical engineers and serves a broad spectrum of functions. Used to select what is being measured and the upper limit of how much is being measured. Its seems there is a lot of confusion on how to use a multimeter now adays, so this book was created to demystify exactly that. Analog multitester and their parts and functions answers.
We remove email addresses to keep spambots from harvesting names. Jul 27, 2015 pointer the needleshape rod that moves over the scale of a meter. Although both digital and analog multimeters measure varying units, such as voltage, current, and resistance, they display their readings in distinctly different ways. This sign cautions that high voltage is applied to parts marked. A multimeter is an electrical instrument which measures different electrical quantities.
This is intended to be a brief introduction into how multimeters work and their basic functions. A few multimeters have illuminated displays for better viewing in low light situations. I wanted to share a quick post regarding using a digital multimeter. Gardner bender gmt312 analog multimeter, 5 function 12.
Oct 09, 20 multitester it is the best instrument that can measure voltage, resistance and current. Multitester vomvoltohmeter also called multimeter is designed to measure different magnitudes of electrical units. Where the negative port connector is plugged in no. Multitester it is the best instrument that can measure voltage, resistance and current. Zero ohm adjuster adjusts the needle to the right side of the scale. Everything electrical how to use all the functions on your. A continuity test tells us whether two things are electrically connected.
Pinpoint problem area and determine which components need repair or replacement. The parts are for basic multimeter monitor where you read the results, a frame with with a selector switch ac volt, dc volt, ac amp,dc amp, ohm, selections and scale or what we call multiplier, and 2 probes 1 red, 1 black. There are many different ratings, scales, functions and kinds of multitesters on the market. Multitester functions and parts electronics hw the multitester multimeter or sometimes called vom voltmeter, ohmmeter, milliameter is a handheld device that can be use to check resistance, continuity, and voltage in electrical components. The astroai true rms digital multimeter is designed to be safely and accurately used by professionals in a commercial setting or weekend dyers that need a little more utility from their standard digital multimeter. Mar 10, 2019 when it comes to gauges, scales and meters, they are usually primed to measure a few parameters at the most. Jun 06, 2017 multitester it is the best instrument that can measure voltage, resistance and current. These start from basic models costing only a few pounds sterling which are capable of measuring voltage, resistance and current, to expensive and exotic meters. What are the parts of an multimeter both analog and didgital and its functions. Adjustment screw makes it possible to adjust the pointer to. A typical multimeter would include basic features such as the ability to measure voltage, current, and resistance. All multimeters are designed to measure at least, three basic quantities which are voltage, current and the resistance.
Locate faulty wiring and test electrical components. Created using powtoon free sign up at create animated videos and animated presentations for free. Dialinfinity knob points the needle to the 0 at the left side of the scale. Product njty mini digital multimeter 6000 counts multifunctional non contact true rms multi meter voltmeter ammeter ohmmeter measuring acdc voltage current resistance capacitance frequency temperature ncv c. Pointer the needleshape rod that moves over the scale of a meter. Digital multimeters also offer a wide range of ac and dc measuring capabilities to accommodate a variety of applications.
The major issue addressed by the ul601010 standard was to look at fault potential to available energy and define limited by category to each. Analogue multimeter this type of multimeter contains a moving coil meter, a selector switch and can be passive, using resistive networks to switch ranges or active, requiring a battery and electronics to perform certain functions or amplify weak voltages and currents. Astroai user manual true rms digital multimeter thank you for purchasing the true rms 6000 count digital multimeter from astroai. Analog meter precautions do not jar, manhandle, drop or pile tools or any thing else on your meter. The instrument features in strong data management facility enabling the user to create custom autotests with predefined limits for passfail evaluation, to import predefined structure including test. Analog multimeters are often cheaper than digital ones but are less accurate. Learn what are the parts and function of the voltage ohmmeter and its parts and functions. View and download sanwa yx360trf instruction manual online. Display selection knob ports the display usually has four digits and the ability to display a negative sign. Learn how to use all the functions on your multimeter you are about to discover how to really use your multimeter settings. Analog multimeters use a microammeter with a moving pointer to display readings. A typical multimeter can measure voltage, current, and resistance. If the input is ac, it converts it to equivalent dc.
A multimeter or a multitester, also known as a vom voltohm meter or voltohmmilliammeter, is an electronic measuring instrument that combines several measurement functions in one unit. I am going to share with you the different parts of an analog type multitester or multimeter. This example of a digital multitester is here to help become familiar with the parts of a multitester. A basic multimeter measures resistance, voltage and current. Multimeter uses and functions how to use a digital. Many multimeters include continuity and diode test functions with an audible alarm for enahnced user experience. Essential parts and basic functions of digital multimeter press release apr 26, 20 16. It incorporates the functions of a voltmeter,ohmmeter,and milliammeter into one device. Home electronic equipments multitester vom parts and functions of multitester or voltage ohm meter parts and functions of multitester or voltage ohm meter arnel g.
For this post, well be focusing on the most commonly used functions for installations. It indicates the measured values on the multimeter. Description of the multimeter electrical engineering centre. Paying attention to the specifications of a multitester becomes important when doing very sensitive. However, what if there was a meter that could measure multiple parameters. Follow along to master the three most basic functions of a multimeter. Zero ohm adjuster for analog multi testers this part sets the indicator of the left scale to zero 2. A multimeter is a handheld device that combines different electronic testing and measurement tools. Summary of contents1 fluke multimeter user manual2 klein multimeter user manual3 mastech multimeter user manual4 craftsman multimeter user manual5 amprobe am530 multimeter user manual6 fieldpiece hs33 multimeter user manual7 tacklife cm02a multimeter user manual8 uei test instruments dl369 multimeter user manual9 extech ex330. Digital multimeters long ago replaced needlebased analog meters due to their ability to measure with greater accuracy, reliability and increased impedance.
Always use proper terminal,switch position and range for measurements. Where the positive port connector is plugged in if you are measuring less than 100ma of current. Parts and functions of multitester digital multimeter analog multimeter 1. Basic functions and use of a digital multimeter electrician. Mini units may only require a single one and a half volt aa cell, while larger models with more functions may need a nine volt battery.
Dont ever forget to carry this whenever you are going for a competition. This post is designed to give you a basic understanding of what a digital. Multitester the multitester is an instrument that can measure voltage, resistance, and current. They may also be able to measure frequency and duty cycle a measurement relating. Range selector knobselector switch makes it possible to select different function and range of the meter. Before we know how to use a multimeter,we must understand a safety information about multimeter. Depending on the type of meter you have, they can be capable of measuring everything from voltage, current, and resistance, to light intensity, sound level, temperature, capacitance and more. It is a standard diagnostic tool for technicians in the electricalelectronic industries.
Essential parts and basic functions of digital multimeter. The vom or voltage ohm meter or commonly called as multitester is used by the technicians or enthusiasts both electronic or computer technician. The pointer or needle use to point or read the measurement using the meter scale base of the range and settings you prepared during the test of a device or line of a voltage meter scales this is the basis of the measurement where the graduation, bar drawn in the body, commonly the resistance or ohms scale have a measurement from 02k ohms depend of the. For example, if youre measuring a 15 v circuit and your multimeter has 2 v, 20 v and 200 v settings, youd choose the 20 v setting. Pointer or needle indicates the values read from the scale. In both of these precautions, you do not want to jar the needle from it jeweled pivot. The selection knob allows the user to set the multimeter to read different things such as milliamps. But instead of being able to handle a single function i. And analog multitester will have a meter, battery, and switch.
Parts and functions of multitester or voltage ohm meter. Because you want to be sure youre getting an accurate measurement, set the scale a little higher than you expect to read, but not so high that your reading will be an indiscernible blip at the bottom of the scale. A study on multimeter multimeters are very useful test instruments. When reading the dial display of an analog meter its possible to. To ensure that the meter is used safely, follow all safety and operat. The sears 82373 multitester and the archerkit 284014 are reported to be the same thing under a different.
Modern digital multimeters have many abilities, there are a wide range available to suit most engineers needs. To avoid possible electric shock or personal injury,please follow these guideline do not use the meter or test lead if they appear damage or not operating properly. The analogue meter has a screw to adjust the zero position. Filled with picture examples and jam packed with helpfu. A input selector and conditioning this attenuates signals to the right levels for measurement and converts ohms, current etc to volts as the measurement is in volts. Apr 26, 20 essential parts and basic functions of digital multimeter press release apr 26, 20 16. Digital multimeters long ago replaced needlebased analog meters due to their ability to measure with greater accuracy, reliability and. These start from basic models costing only a few pounds sterling which are capable of measuring voltage, resistance and. This equipment is used to measure both the voltage ac and dc voltages, resistance, and current. As one of most widelyused electronic testing instruments, the digital multimeter dmm is more commonly known as the modernday tape measure. Analog multitester although older than the commonly preferred digital multimeter, do come with several unique advantages. Electrical digital multimeter lcd voltmeter volt ohm tester ac dc multi meter.