A Guide to Digital & Analogue Multimeters

N.-Y.: Radio-Electronics © Ian Poole, 2015. - 52p. The multimeter has been available in a variety of forms for very many years. It forms the mainstay of many test workshops and development laboratories. Measuring the basic quantities of voltage (AC & DC), current (AC & DC) and resistance the multimeter is able to make the main measurements required for many tests. Nowadays with digital technology digital multimeters are able to make many more types of measurement from capacitance and inductance to frequency, time, temperature and much more. In order to make the best use of the multimeter, it is necessary to know how one works and what its limitations are. In this way, it is possible to utilise it more effectively, and in ways that are able to extend its use. This book aims to provide an approachable grounding into both analogue and digital multimeter technology, explaining how they work,, what their specifications mean, their limitations, and most important of all how to use them. Some tricks of the trade are also revealed, enabling the reader to use these instruments in many new, interesting and useful ways. About this Book 3 Index 4 Chapter 1: Introduction to Multimeters 5 Multimeter History 6 Multimeter applications today 9 Chapter 2: Analogue Multimeter 10 Analogue multimeter meter basics 11 Analogue multimeter specifications 14 Chapter 3: Using an analogue multimeter 16 Analogue meter advantages & disadvantages 17 Parallax errors 18 Using the correct range 19 Analogue meter zero position adjustment 20 Finishing using multimeter 21 Making measurements using an analogue multimeter 22 Chapter 4: Digital Multimeter 28 DMM facilities 29 How a DMM works 31 DMM specifications 34 DMM accuracy & Resolution 37 Chapter 5: Using a DMM 40 Digital Multimeter Measurement Basics 41 Voltage Measurements 42 Current Measurements 44 Test Points and Links 45 Current Probes 47 Current Measurement Precautions 48 Resistance Measurements 49 Using a DMM for Other Measurements 51 Other Books 52 About the author 53