Digital multimeter selector uide use the optional scanner cards to increase measurement capability for voltage measurements from 10 different channels or for temperature measurements from 9 different thermocouples. Not every digital multimeter will have the same features. They are preferred by many due to their ease of use and convenience. Please remember to complete and return your product warranty registration card. If theres no continuity, then the element is burnt out or broken. Multimeters can be used as an ammeter, a voltmeter, an ohmmeter. How to verify electrical test tool operation with a proving unit.
Features of digital multimeter digital multimeter is the most advanced instrument that makes use of modern integrated circuits for making electrical measurements. Digital multimeter working principle analyse a meter. How to electronically sign pdf documents without printing. The instruction manual given under the heading of must be. Then hold the probes against the resistor legs with the same amount of pressure you when pressing a key on a keyboard. Follow all safety instructions to make sure that the multimeter is used safely. Instruction manual model 175 autoranging multimeter. Digital multimeter learn to use a digital multimeter. Not every measurement will use the same combination of probe connectors, so make sure you familiarize yourself with each unique setting.
For example, measure dc voltage, acv, dc amp meter, ac amp meter and as the ohms meter, etc. Features lcd screen large and easy to read data screen program selector quick and easy program selection via turn dial transistor ch. A study on multimeter multimeters are very useful test instruments. Plug the black probe intocom and the red probe into mav set the multimeter to 2v in the dc direct current range.
Based on this approach, a new technique for algorithm design is developed. A multimeter or a multitester, also known as a vom voltohmmilliammeter, is an electronic measuring instrument that combines several measurement functions in one unit. Electrical digital multimeter lcd voltmeter volt ohm tester ac dc multi meter. It also covers multimeter precautions and how to operate a digital. Simple instructions on how to use a digital multimeter. This instruction manual explains how to use your new digital multimeter ps8a safely, before use, please read this manual thoroughly. We carry everything from affordable multimeters for doityourselfers to professionallevel truerms and autoranging digital multimeters with automatic calibration for more demanding applications. At the end of this article you will learn how to measure voltage with multimeter, measure dc current, check for continuity, measure. Digital multimeter principles is part of a comprehensive instructional package and is a must for all technicians, from contractors to maintenance staff. Most circuits, sensors, and actuators can be tested using a digital multimeter. Pdf new digital multimeter for accurate measurement of. How to use a multimeter beginners guide random nerd.
Dont ever forget to carry this whenever you are going for a competition. Digital multimeter principles is a must for all technicians, from contractors to maintenance staff. This app covers how to measure dc voltage and ac volatages. A digital multimeter is an essential piece of test equipment, widely used by electronics technicians, hobbyists and electricians. Some can measure temperature, perform diode tests, or measure specifics about car engines.
An approach to the design of a digital multimeter based on the use of dualslope adc is described in this paper. Part no dt830b blister1 a convenient and reliable entry level multimeter with simple rotary switch to quickly select the function and range to be measured. Theyre great but cost more because of the extra computer chip offering additional capabilities. Autoranging is just another convenient add on to a digital meter. In this video i am showing how to use digital multimeter and how to read dc and ac voltages,current,resistence,continuity,capatiance and temperatures all these measurements can read a digital. How to troubleshoot a pump control panel with a thermal multimeter. I am showing you a digital multimeter circuit using icl7107. Pick out a random resistor and set the multimeter to the 20k. Multimeters are a tool that we use to measure multiple characteristics of electronics. However, this application note explains common uses and tips for using most dmms. Gareth branwyn is a freelance writer and the former editorial director of maker media. It features extra large numerals on the lcd, and data hold for all functions and ranges. They are very simple to use and can come in handy in many situations in amateur electronics. In its most basic form, the meter measures voltage, current and electrical resistance.
If youre looking to use your digital multimeter for a specific purpose, make sure you buy one that serves that same purpose. This diminishes arc protection and creates a hazardous condi tion. Pdf how to use a digital multimeter prasetiyo lukman. The first digital multimeter was introduced in the late1970s, and has proven much more accurate and reliable than the old needlebased analog meters.
Using analog or digital multimeter in pcb, electronics or mobile phone repairing is must. Even the simplest and cheapest types may include features which you are not likely to use. The flow chart of the current and temperature measurement system is shown in figure 3. Use the following sequence when testing power circuits. Once you know the approximate resistance of the device, then use the switch to select the lowest range that will still accomodate the resistance of the device. A better way to measure current is to use an external current shunt. Although both digital and analog multimeters measure varying units, such as voltage, current, and resistance, they display their readings in distinctly different ways. Here surely you will learn the use of digital multimeter. Youve learned how to measure voltage, current and resistance, and how to check continuity.
Almost all portable electronics use direct current, not alternating current. I use a multimeter for some basic sanity checks and some rough measurements. A digital multimeter is an indispensable tool for testing, diagnosing, and troubleshooting electrical circuits, components and devices. 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. Fluke dmms, for example, undergo rigorous testing and evaluation. How to use a digital multimeter what is a multimeter. This equipment is class a suitable for professional use and is for use in electromagnetic envir.
In this article we will learn how to use a digital multimeter and how this will help us in our journey with electronics, this will be a very basic article which will take your through the different operations of a multimeter will illustrative pictures and videos. An analog multimeter, although older than the commonly preferred digital multimeter, does come with several unique advantages. The number and type of batteries required will vary from model to model. Do not store or use in high temperature, high humidity, flammable, explosive and strong magnetic field environments. Digital multimeter layout the top portion of the meter contains the digital readout area which displays the measurement value. Successful completion of tasks covered in the textbook can be documented by a certificate of completion included in the textbook. Basic models are capable of measuring voltage, current, and. The function switch dial is turned to select the meters function. The multimeter can be used for measuring a variety of basic electrical quantities. Do not use this instrument if it or the test leads appear to be damaged, or if you suspect that the instrument might not 9.
Keysight truevolt series dmm operating and service guide. Anyone who needs to look at electrical or electronic circuits and systems may need to use a test meter or as they are often called. What to look for in a multimeter and how to use a multimeter to measure voltage, current, resistance and continuity. This is a 4000 count, manualranging digital multimeter that employs high input impedance to ensure accurate readings and circuit isolation for digital and analog devices. Enter your mobile number or email address below and well send you a link to download the free kindle app. Analog multimeters use a microammeter with a moving pointer to display. This is an integral tool in dealing the electronic circuits and even to check a battery. Digital multimeters are indispensable tools that allow you to analyze circuits and diagnose problems in your electrical design. At the start of the program, pic needed to be initialized the io pins assigned and clock frequency. The available truevolt digital multimeter dmm models are. The multimeter displays 0 ohms with the leads shorted together. Below the digital readout is a black dial, called the function switch. In this beginners guide, weve shown you how to use a multimeter.
Product description the 3 is a hand held manual ranging dmm. This handout is developed to be printed out and used in a classroom. Dmms are available very cheaply and these digital multimeters can provide very high degrees of accuracy when measuring the parameters within an electronics or electrical circuit. How to use a digital multimeter for dummies housetechlab. A typical multimeter can measure voltage, current, and resistance. How to use a digital multimeter measure voltagecurrent. Different from traditional dmms, some of the newest dmms has a feature of autoranging, take this urceri sm01 dig. Measurements exceeding the limit values of the instrument may damage the instrument and endanger the safety of the operator. Circuit specialists has a variety of handheld digital multimeters dmms tailored to your needs and budget.
How to use digital multimeter pdf books quranmualim. Multimeter is also called multitester or vom volt ohm millimeter. And the ability of a tool to last over a number of years through hard use, is crucial for reliability. A digital multimeter dmm may look complicated and intimidating at first glance, but once you understand the display, dial, and port panel, youll have a better grasp of dmm basics. The most basic things we measure are voltage and current. Tekpower tp8231 pocket size 2000 counts mini auto rangeing and auto selection digital multimeter with non contact voltage detector, a meter for dumb learn more. This is a handout that was developed using materials in our how to use a multimeter tutorial. The input ports use standard fourmillimeter insulatedplug test leads provided. Above, it was stated that you must use the correct socketrange when measuring current with a multimeter to prevent blowing fuses or the meter, for meters that are not internally fused. Power dissipation effects when measuring resistors designed for temperature measurements or other resistive devices with large temperature coefficients, be aware that the multimeter will dissipate. We modify them from a normal dc digital voltage meter circuit to smart multimeter. A multimeter is an essential tool in any electronics lab. To execute most measurements, youll need to hook up the test probes to the digital multimeter using the probe connectors. Article summary x to use a digital multimeter to measure voltage, start by putting the black probe in the common terminal and the red probe in the terminal thats marked for measuring volts.
How to use a digital multimeter is a complete step by step tutorial on how to use it. The diagram below shows a switched range multimeter. An introduction to the digital multimeter wisconline oer this website uses cookies to ensure you get the best experience on our website. Thats why it is also called multiple measurement maters multimeter manual.
A digital multimeter or dmm is one of the most widely used pieces of test equipment today. In this learning activity youll explore the functions and proper operation of a digital multimeter. Digital meters give an output in numbers, usually on a liquid crystal display. After reading it, keep it together with the product for reference to it when necessary. Multimeters are designed and mass produced for electronics engineers. In the next few pages, we will discuss how to use a dmm to make measure. Use the optional tsplink interface and tsp test script. An introduction to the digital multimeter wisconline oer. How to validate a pump control panel repair with a thermal multimeter. Today, instead of doing an arduinomicrocontroller tutorial, we look how to use a multimeter which is an essential piece of equipment for hobbyists and makers when building electronics projects.
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