How to Use a Fluke Clamp Meter

Written by kyle mcbride
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Fluke Corporation is a manufacturer and distributor of electronic test equipment, including clamp meters. A Fluke clamp meter is a multimeter that includes a clamp-type current meter. Created primarily for electricians and technicians, the clamp meter is a test tool that has the ability to measure large alternating currents (AC) as well as offering the basic functions of a digital multimeter for measuring direct current (DC) and resistance.

Skill level:
Easy

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Instructions

  1. 1

    Turn the selection dial on the Fluke meter to "Volts AC (Ṽ)" or "Volts DC" as appropriate for your measurement.

  2. 2

    Insert the black test lead into the "COM" jack. Insert the red test lead into the "V" jack.

  3. 3

    Touch the circuit across the load or across the power source with the probe tips.

  4. 4

    Note the readout on the meter's display. Note also unit of measure.

  1. 1

    Turn the selection dial on the Fluke meter to "Amps AC (Ã)."

  2. 2

    Squeeze the lever on the side of the Fluke meter to open the clamp jaws, then position the meter near a conductor. Release the lever to close the jaws around the conductor.

  3. 3

    Note the readout on the meter's display.

  1. 1

    Disconnect power from the circuit to be measured.

  2. 2

    Turn the selection dial on the Fluke meter to "Resistance (Ω)."

  3. 3

    Insert the black test lead into the "COM" jack. Insert the red test lead into the "VΩ" jack.

  4. 4

    Touch the probe tips across the circuit or across the component for which you wish to measure resistance.

  5. 5

    Note the readout on the meter's display.

Tips and warnings

  • On clamp meters with a hold feature, you can press the "Hold" button once the meter has taken a reading. You then remove the meter probes from the circuit before viewing the display. The hold feature allows you to take a reading and have that reading stay in the display, so you can read it once you've moved your hands away from the dangerous circuit.
  • When disconnecting the leads, always remove the red lead first.
  • Do not work alone when working with large AC or DC voltages and currents.
  • Hold the meter down around the meter's body. Do not touch the meter near the clamp jaws while the meter is in use.

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