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Fluke 41B
Power Harmonics Analyzer, Discontinued

See: Fluke 43B

  • Three Views of each reading:
    • Waveform
    • Bargraph showing harmonic levels
    • Numeric values
  • Real-time Display Updates
    Display updates three times a second for a dynamic view of actual circuit conditions
  • Comprehensive Measurements
    Measure rms, peak and total harmonic distortion (THD) for complex voltages and currents - with no manual calculations required
  • Three-Phase readings
    From a simple single-phase measurement, automatically calculates three-phase power for 3-wire balanced loads (typically 5% or less imbalance).
  • System Critical Data
    Immediate readings of Power Factors, KVAR, Crest Factor, K-Factor
  • Display Harmonics individually to the 31st
  • Min/Max and Average recording
  • Data Storage of up to eight complete measurement sets (Fluke 41B)
  • Isolated Serial Interface for communications with a serial printer or DOS or Windows-compatible computer (Fluke 41B)
  • Safety Designed to meet the latest standards: ICE 1010-1, pollution degree 2, Installation Category III, material group II, 600V. Double insulated protection as described in ICE 1010-1, Annex H.

The Fluke 41B Harmonics Analyzer combines the ease of use of a digital multimeter, the visual feedback of an oscilloscope and the power of a harmonics analyzer in a single instrument. If you're testing power on three-phase systems or trouble-shooting harmonics on non-linear loads, no test tool makes it easier.

The Model 41B is ideal for further analyzing data and optimizing system performance. Use the Fluke 41B's FlukeView® software (included) to download acquired data to a printer or an MS-DOS® or Windows® compatible computer for analysis and presentation.


Direct 3Ø readout from simple single-phase measurement Phase angle of fundamental and harmonics
True-rms. voltage from 5.0V to 600V Waveform and spectrum displays
True-rms. current from 1A to 500A (1000A with optional probe) Record mode - MIN, MAX and AVG.
Peak, DC, and Crest Factor Zoom mode
Total harmonic distortion (% THAD and % THIRD) 48-hour battery life (4 "C" cells)
Active power from 10W to 300kW (600kW with optional probe) Handheld, 1 kg (2 lbs.)
Apparent power (kV) Surge protection, 6kV per ICE 1010-1 CAT III - 600V
Total power factor (HF) Marks - CE,  CSANRTL/C, TUV/GS
Displacement power factor (DPI) Includes 500A current clamp and video
K-factor Memory for 8 complete data sets
Frequency from 6Hz -99.9Hz (fundamental) Optically isolated RS-232 interface
Harmonics to 31st FlukeView® PC software for Windows® and DOS included
Ordering Information


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41B 41B Fluke 41B Power Harmonics Analyzer, DISCONTINUEDPower Harmonics Analyzer Discontinued
See: Fluke 43B