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ABCs Of DMMs
What is a DMM?A DMM is simply an electronictape measure for makingelectrical measurementsIt may have any number ofspecial ...
Some Basics• Resolution - Resolution refers to how fine a  measurement a meter can make• Digits and Counts - The terms dig...
Some Basics• Ohm’s law – Voltage, current, and resistance in any  electrical circuit can be calculated by using Ohm’s  Law...
Measuring VoltageOne of the most basic tasksof a DMM is measuringvoltageAccessories, such as Fluke80K-40 and 80K-6 highvol...
Measuring ResistanceFor measuring resistance inthe presence of diodes, DMMtest voltages are kept below0.6 V so the semicon...
Safety Precautions
Thank You
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Fluke India - Digital Multimeter

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This Presentation explains all that you need to know about Digital Multimeters.

Fluke India is a leader in the manufacture, distribution and service of electronic test tools and software.

Published in: Technology, Business
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Fluke India - Digital Multimeter

  1. 1. ABCs Of DMMs
  2. 2. What is a DMM?A DMM is simply an electronictape measure for makingelectrical measurementsIt may have any number ofspecial features, but mainly aDMM measuresvolts, ohms, and amperes
  3. 3. Some Basics• Resolution - Resolution refers to how fine a measurement a meter can make• Digits and Counts - The terms digits and counts are used to describe a meter’s resolution• Accuracy - Accuracy is the largest allowable error that will occur under specific operating conditions
  4. 4. Some Basics• Ohm’s law – Voltage, current, and resistance in any electrical circuit can be calculated by using Ohm’s Law - V = A x Ω• Digital and analog displays - For high accuracy and resolution, the digital display excels, displaying three or more digits for each measurement The analog needle display is less accurate and has lower effective resolution because you have to estimate values between the lines
  5. 5. Measuring VoltageOne of the most basic tasksof a DMM is measuringvoltageAccessories, such as Fluke80K-40 and 80K-6 highvoltage probes, extend thevoltage measurement rangeof a DMM
  6. 6. Measuring ResistanceFor measuring resistance inthe presence of diodes, DMMtest voltages are kept below0.6 V so the semiconductorjunctions do not conductcurrent
  7. 7. Safety Precautions
  8. 8. Thank You

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