GF335 Portable three phase harmonics power quality analyzer

harmonics power quality analyzer

GF335 three phase harmonic power analyzer with 1000A current clamp offer the best ability in power quality analysis, GF335 portable power quality analyzer help locate, predict, prevent and troubleshoot power quality problems in three phase and single phase power distribution systems. Additionally, GFUVE patented energy loss algorithm, unified power measurement, measuring and counting energy losses due to harmonics and unbalance issues, allowing the user to pinpoint the origin of energy losses in the system. It can test voltage, current, active power, reactive power, apparent power, energy, power factor, phase angle,frequency, also measure harmonic up to 64th. GF335 Three Phase Power Analyzer is suitable for Power Company, technical supervision departments, Industrial, mining, petroleum as well as chemicals, home appliances and manufacturing enterprises.



  • The measured data can record, query and upload print.
  • Ultra-compact design, portable, small size, light weight.
  • 6 inch TFT color LCD & handheld industrial ergonomic design.
  • With current directly function , as a high precision power analyzer.
  • It can measure harmonic content from 2nd to 64th and the harmonic analysis.
  • Low consumption circuit design, battery works continuously for a long time.
  • It can be divided into direct current clamp measurements and precision measurements.
  • Instrument calibration by using software to facilitate the correction instrument variation.
  • Showing the AC waveform, vector diagram and determining the three-phase three-wire connection errors.
  • The usage of multi-channel power supply, AC power supply can also be rechargeable battery-powered machine.
  • High accuracy instrument, good stability, and wide range of voltage monitoring 0-1200V, current 1mA - 1000A.
  • It can measure three-phase voltage , current, active power, reactive power, power factor , frequency, phase , etc.


  • Check Meter - real live load calibration of various single-phase, three-phase energy meters.
  • Measurement of harmonics - measurement / display voltage and current waveforms and harmonic bar graph.
  • Vector analysis - based on the voltage, current, phase error of judgment wiring, display vector graphics
  • Measurement the instantaneous values - including the exchange parameters: U, I, P, Q, PF, phase angle, frequency, harmonics, etc.
  • The value of the measurement process- it can be recorded and tested continuously voltage, current, active power, reactive power and other electrical parameter values and curves in a dynamic process and graphically display.
  • Measuring energy consumption values - the precise timing measurements of electrical equipment for short-term energy consumption; energy resolution: milli-watts; time resolution: milli-second; they are difficult to available for common instrument of power. The functions are used by pumping, cranes, air conditioning and other equipment in a work cycle connected power consumption.


Items Range Effective resolution Accuracy1 Accuracy2 Remarks
Voltage 0-1200V 0.001V 0.1% 0.05% 2 ranges
Current directly 0-12A 0.001A 0.1% 0.05% 3 ranges
Clamp-on 0.01-100A 0.01A 0.15% 0.15% option(2)
Clamp-on 0.1-1000A 0.01A 0.15% 0.2% 0.20%
Frequency 45-65Hz 0.001Hz 0.005Hz 0.002Hz 6 bit display
Active power 0 to ±Umax x Imax 0.01W 0.5% 0.2% 6 bit display
Reactive power 0 to ±Umax x Imax 0.01Var 1% 0.5% 6 bit display
Apparent power  0 to ±Umax x Imax 0.01VA 1% 0.5% 6 bit display
Active energy     0.5% 0.2%  
Reactive energy     1% 0.5%  
Harmonic 2nd-64th   0.5% 0.2%  
Power factor 0 to ±0.9999 0.0001 ±0.001 ±0.0005 6 bit display
Phase  0-359.999° 0.005° ±0.05° ±0.02° 6 bit display
(1) Directly test
(2) Clamp-on 1000A,3000A,5000A is optional.
Electrical parameters
Power supply "One-phase power supply (85-265VAC/45-70Hz)
Lithium battery, 5000mAh
Communication port RS232, USB
Energy constant 3600imp/kWh, 360000imp/kWhx4
Frequency influence ≤20ppm/Hz
Pulse interface TTL energyx6
Mechanical parameters
Main machine (L×W×H) (mm) 240 x 157 x 60
Weight (kg) 1.5
Carrier dimension (L×W×H) (mm) 470 x 380 x 220
Carrier weight (kg) 10.6 (Including three clamp-on (100A), wires and software)
Environmental conditions    
Environment -10 to +55°C, 15-85%RHD
Altitude (m) ≤3500
Temperature -20°C to 65°C
Temperature ≤25ppm/°C (U/I), ≤50ppm/°C (others)

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