GF333BM 150A 600V Modular three phase reference standard meter

Modular three phase reference meter

The model GF333BM three phase reference standard meter is designed for one modular three phase multi-function reference energy meter, test three phase energy meters and single phase electricity meters error, work in the laboratory or meter test board, convenient energy meter test bench manufacturer for secondary development and Application. It can be as one of the most versatile high precision reference instruments. It can measure three phase voltage, current, frequency, phase angle, active power, reactive power, apparent power, energy and harmonic etc parameter, accuracy 0.02% and measurement range wide from 0 to 600V and 1mA to 160A. The modular reference meter has been used many in meter test bench suppliers.



  • With RS232 port;
  • Vector diagram function;
  • Waveform display function;
  • High accuracy up to 0.02%;
  • Small size and light weight;
  • Energy accumulating function;
  • Testing type: 3P4W, 3P3W, 1P2W, 1P3W;
  • 2nd-128th Harmonic analysis function;
  • Applied to energy meter test bench or meter test kit;
  • Wide testing range: voltage 0V-600V, current 1mA-160A;
  • Modular design, embedded in the energy meter test system;
  • Internal pulse input port, testing meter's error directly;
  • Wide range 0.005% precision current transformer technology;
  • Testing mode: active power, reactive power, apparent power;


  • AMI design center;
  • Energy meter R & D;
  • Electrical laboratory;
  • Watt-hour meter factory;
  • Colleges and Universities;
  • Meter test bench suppliers;
  • Metrological service center;
  • Laboratories of power utilities;
  • Electricity meter manufacturers;
  • Meter test equipment integrated factory;
  • National Metrology and testing department;


Electrical parameters 
Accuracy 0.05%, 0.04%, 0.02%
Voltage supply 220V±10% or 110V±10%, 50/60Hz
Power consumption 15VA
Voltage measurement
Range(U1 U2 U3 UN) 0V-600V
Error ±0.02% (40V-600V), ±0.05% (5V-40V)
Display range 0.000000V-600.0000V
Harmonic 2nd-128st
Current measurement
Range(I1 I2 I3) 1mA-60A; 1mA-120A; 1mA-160A; 1mA-200A
Error ±0.02% (0.1A-240A), ±0.05% (1mA-0.1A)
Display range 1.000000mA-240.0000A
Harmonic 2nd-128th
Power measurement
Active power ±0.02% (0.1A-240A)
±0.05% (0.01A-0.1A)
±0.1% (0.001A-0.01A)
Reactive power ±0.05% (0.1A-240A), ±0.1% (0.001A-0.1A)
Apparent power ±0.05% (0.1A-240A), ±0.1% (0.001A-0.1A)
Energy error
Active energy ±0.02% (0.1A-240A)
±0.05% (0.01A-0.1A)
±0.1% (0.001A-0.01A)
Reactive energy ±0.05% (0.1A-240A), ±0.1% (0.001A-0.1A)
Apparent energy ±0.05% (0.1A-240A), ±0.1% (0.001A-0.1A)
Phase measurement
Range 0°-360°
Error ±0.005°
Display range ±0.02° or ±0.01°
Display range 0.0001°-359.9999°
Frequency measurement
Range 40-70Hz
Display range 40.0000-70.0000
Resolution 0.0005Hz
Accuracy 0.001Hz
Power Factor measurement
Range -1.00000 ~ 0 ~ +1.00000
Resolution 0.0001
Accuracy 0.0005
Energy pulse
High frequency output(CH) 25000Hz
Low frequency output(CL) 5000Hz
Pulse ratio 1:1
Output level 5V
Input level 5V
Input frequency Max. 1MHz
Input frequency Max. 1MHz
Communication port
Communication port RS232 or USB
Standard IEC 62053-21,22, 23; IEC 60736; IR46; ANSI C12.20-2022;
JJG 597-2005; JJG596-2012; JJG 1085-2013; JJF 68-2019;
DL/T 826-2002; DL/T 1478-2015; DL/T 448-2016
Isolation protection IEC 61010-1:2001
Measurement Category 300 V CAT III, 600 V CAT II
Degree of protection IP20
Declaration of conformity CE & CNAS certified
Mechanical parameters 
Dimensions (W×D×H) (mm) 280x200x85 
Weight (kg) 5
Environmental conditions 
Ambient temperature -10°C to 45°C
Storage temperature -20°C to 65°C
Relative humidity 10%-85%
Influence of external fields ≤0.05 %/mT
Temperature coefficient ≤0.0005% /℃

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