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Fluke fundamentals

Stay relevant in your industry by keeping up with best practices, practical how-to articles and videos, Fluke tool basics, and some of the most common industry terms. Whether you are new to the industry or a seasoned veteran, this information will keep you sharp and ready for what the day has in store for you.

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  • Basic features of a clamp meter

    What is a clamp meter?

    Clamps measure current. Probes measure voltage. Having a hinged jaw integrated into an electrical meter allows technicians to clamp the jaws around a wire, cable and other conductor at any point in an electrical system, then measure current in that circuit without disconnecting/deenergizing it.
  • BLOG: Selecting a temperature range on your thermal imager 1500x1000-1

    How to select a temperature range on a Fluke thermal imager

  • Oscilloscope vs multimeter comparison

    Oscilloscope vs multimeter: choosing the right tool for testing and troubleshooting

    The difference between an oscilloscope and a digital multimeter (DMM) is simply stated as pictures vs. numbers. Learn more, including when to use each.
  • Clamp Meters vs Multimeters

    Clamp Meters vs Multimeters

    A digital multimeter is essentially a voltage-measuring tool with some current abilities. A clamp meter is basically a current-measuring tool with some voltage abilities. They are distinctly different instruments, each with its own advantages.
  • Tips for choosing a clamp meter

    Tips for choosing a clamp meter

    Fluke’s assortment of clamp meters has been engineered to address a wide variety of needs, from routine tasks to specialty projects.
  • How to Test for Continuity with a Digital Multimeter

    How to Test for Continuity with a Digital Multimeter

    Learn how to test continuity using a digital multimeter.
  • 115 DMM measures ac and dc voltage current and more

    How to measure frequency

  • Steps for using a multimeter in the diode test mode

    How to Test Diodes with a Digital Multimeter

    Steps for using a multimeter in the Diode Test mode.
  • Steps for measuring resistance with a digital multimeter

    How to Measure Resistance with a Digital Multimeter

  • Basic oscilloscope functions

    Basic oscilloscope functions

  • Left: Jaws of ac-only current transformer clamp meters close tightly. Right: A sensor sits in the air gap between the jaws of Hall Effect clamp meters.

    What are Hall Effect (ac, dc) clamp meters?

    Hall Effect clamp meters can measure both ac and dc current up to the kilohertz (1000 Hz) range
  • An interior view of a Fluke 325 clamp meter

    Inside current transformer (ac) clamp meters

    An interior view of a Fluke 325 clamp meter
  • Through a series of sequential measurements, you can identify overall leakage current and the source

    Why controlling leakage current is important

  • ASI Robicon Perfect Harmony water-cooled VFD

    Insulation resistance testing capacitors and high-voltage components

    Using a megger for insulation resistance testing capacitors and high voltage components.
  • Teaching Materials

    Guide to Digital Multimeter Safety

    Take digital multimeter safety precautions to handle the conditions found in your work environment. Understand multimeter CAT ratings and ingress protection (IP) codes.
  • Dual impedance digital multimeters

    Why digital multimeter accuracy and precision matter

  • What is true-RMS?

    What is true-RMS?

    The need for true-RMS meters has grown as the possibility of non-sinusoidal waves in circuits has greatly increased in recent years. Some examples include variable speed motor drives, electronic ballasts, computers, HVAC, and solid-state environments.
  • Fluke 190-204 ScopeMeter® Test Tool

    How to read a waveform on an oscilloscope

    Oscilloscopes sample signals as they change over time and then plot those signals on a display. The amplitude of the signal is plotted on the vertical axis and time is displayed on the horizontal.
  • ii900-4

    How air leak detection equipment prevents downtime

    Find out how air leak detection equipment prevents downtime for a 150,000 square foot plant that runs approximately 400 tools on compressed air, produced by a 200-horsepower compressor.
  • Production line that relies on compressed air implements new process for detecting air leaks

    Expediting air leak detection

    Even the smallest air leaks can compound product and energy waste and lost production time—especially for a production line that cannot function without compressed air to run its tools and processes.
  • ARTICLE: What is power factor and why is it important? - 2

    What is power factor and why is it important?

    What is power factor and why is it important? Learn how to calculate the power factor formula, each component of the equation, and why it matters.
  • Fluke ii900 Sonic Industrial Imager

    How to detect compressed air, gas and vacuum leaks AND find hidden profits

    What if there were a leak detection technology that could pinpoint the precise location of a leak from up to 50 meters away? The Fluke ii900 Sonic Industrial Imager, a “gamechanger” in the pursuit of finding compressed air leaks.
  • Fluke 1587 FC Insulation Multimeter, performing a high-voltage megohm test

    Insulation tester vs megohmmeter

    What is the difference between an insulation tester and a megohmmeter? Compare insulation meters, testers, megohmmeters, and meggers to learn about what's best for your needs.
  • 3 ways to improve motor health with vibration testing

    3 ways to improve motor health with vibration testing

    One would be hard-pressed to find a facility manager who doesn’t want maintenance operations to run as smoothly as possible. Detecting signs of motor components failure becomes easier when combined with a preventive vibration program.
  • Default image, Electronics articles

    Common Power Quality Factors Affecting Transformers

    Transformers supplying nonlinear loads should be checked periodically to verify operation within acceptable limits. Transformers are also critical to the integrity of the grounding system.
  • Three ways to conduct thermal inspections

    Three ways to conduct thermal inspections

    Thermal cameras provide a return on investment
  • Why peak demand management matters

    Why peak demand management matters

  • Why use a thermal imager?

    Why use a thermal imager?

  • How infrared cameras work

    How infrared cameras work

    Learn how infrared cameras measure heat signatures and use color palettes, spatial resolution, and proper focus to create a thermal image.

  • What is Ohm’s Law?

    What is Ohm’s Law?

    Ohm’s Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit.

  • What is a diode

    What is a diode?

    A diode is a semiconductor device that essentially acts as a one-way switch for current.

  • What is duty cycle

    What is duty cycle?

    Duty cycle is the ratio of time a load or circuit is ON compared to the time the load or circuit is OFF.

  • Capturing motor vibration using the Fluke 810 handheld vibration tester

    Most common causes of machine vibration

    Vibration can result from a number of conditions, acting alone or in combination. Keep in mind that vibration problems might be caused by auxiliary equipment, not just the primary equipment.

  • Understanding the benefits of vibration monitoring and analysis

    Understanding the benefits of vibration monitoring and analysis

    Vibration testing for condition-based maintenance, to reduce costs and production losses. Mechanics of testing, analyzing roller bearing faults.

  • Vibration and the Fluke 810

    Vibration and the Fluke 810

    Sometimes vibration in industrial equipment is a symptom or even a cause of trouble; other times, it is part of normal machine operation.

  • How to get great results with an infrared thermometer

    How to get great results with an infrared thermometer

    Infrared (IR) thermometers enable you to measure temperature quickly, at a distance, and without touching the object you're measuring. They are so useful, easy, and even fun to use that they have become as common in kitchens as they have on factory floors. Infrared thermometers are often used to find overheated equipment and electrical circuits, but they have hundreds of other uses.

  • A fresh look at power quality

    How power quality issues affect the plant and how to get rid of them for good

    The electrical power issues that most frequently affect industrial plants include voltage sags and swells, harmonics, transients, and voltage and current unbalance. The proper tools to correct these issues include knowledge and electrical test instruments ideally suited for each task.

  • Capturing the elusive waveform anomalies with the ScopeMeter® 190C Series

    Capturing the elusive waveform anomalies with the ScopeMeter® 190C Series

    Find out how the pass/fail testing function captures random glitches.

  • What is an insulation multimeter?

    What is an insulation multimeter?

    The Fluke 15x7 Series Insulation Multimeter is a new category of test tool that combines a full featured True RMS DMM and a megohmmeter. It's an integrated tool for maintaining and troubleshooting motor systems, electrical distribution, and production equipment.