GF111 single phase reference standard meter for test bench

Single phase reference meter

GF111 reference meter is a single phase reference standard with the characteristics of wide-range 600V/240A, multifunction and high-precision. It has accuracy class of 0.02. By adopting techniques of DSP, embedded system and automatic temperature balancing and other compensation, it has not only advantages of light weight, small size, high precision, high performance, powerful function, original interface, ease-to-use, but also work stability. It can measure U, I, P, Q, S, E, frequency, power factor, phase angle, harmonics etc.
The GF111 energy reference meter can be widely used in fields of electric energy measuring, electric energy laboratories and other relevant industry, not only in laboratories but also at the industrial field. It can as a reference standard for single phase energy meter test bench.



  • Vector diagram function;
  • Waveform display function;
  • Suit for testing in the lab;
  • Energy accumulating function;
  • Measuring 2nd~63rd harmonics;
  • 0-600V, 1mA-240A, 40-70.000Hz;
  • With RS232, connect PC computer;
  • High accuracy class up to 0.02%;
  • High stability, high reliability;
  • Metal structure, strong and reliable;
  • Phase angle precision less than 0.01°;
  • Multi range, automatic range switching;
  • Small size, light weight, simple operation;


  • University;
  • Power plant;
  • AMI design center;
  • Energy meter R & D;
  • Electrical laboratory;
  • Watt-hour meter factory;
  • Metrological service center;
  • Electricity meter manufacturers;
  • Laboratories of power utilities;
  • Meter test bench integrated factory;
  • Electricity power bureau & power company;
  • National Metrology and testing department;
  • Electrical Department of industrial and mining enterprises;


Electrical parameters 
Accuracy class 0.02%, 0.04%, 0.05%
Power supply 220V±10% or 110V±10%, 50/60Hz
Power consumption 10VA
Voltage measurement
Range(U1 U2 U3 UN) 0-600.000V
Error ±0.02% (40V-600V)
±0.05% (5V-40V)
Harmonic 2nd-63st
Current measurement
Range (direct connection) 1mA-120.000A; 1mA-240.000A
Error ±0.02% (0.1A-240A), ±0.05% (1mA-0.1A)
Error (direct connection) ±0.02% (10mA-120A) or (10mA-240A)
±0.05% (1mA-10mA)
Harmonic 2nd-63th
Power measurement error
Active power ±0.02% (0.01A-120A) or (0.01A-240A)
±0.05% (0.001A-0.01A)
Reactive power ±0.05% (0.001A-120A) or (1mA-240A)
Energy measurement error
Active energy ±0.02% (0.01A-120A) or (10mA-240A)
±0.05% (0.001A-0.01A)
Reactive energy ±0.05% (0.001A-120A) or (1mA-240A)
Phase angle
Range 0°-360°
Error ±0.005°
Display range ±0.01° or ±0.02°
Power factor
Range -1.00000-0-1.00000
Resolution 0.00005
Error 0.00001
Range 40.0000-70.0000Hz
Resolution 0.0005Hz
Error ±0.001
Pulse output
Output channel 1
Energy constant 1-9999999
Pulse ratio 1:1
Output level 5V
Output rated frequency 60KHz, max 86.4KHz
Pulse input
Input channel 1
Input level 5-24V or 3-12V
Input frequency Max. 2MHz
LCD Display 4.3 inch 480x272 pixel touch TFT
Vector diagram Yes
Waveform Yes
Energy accumulation Yes
Self-calibration Yes
Data storage Yes
PC software Optional
Communication port RS232
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; GB/T 33708-2017
Isolation protection IEC 61010-1:2001
Measurement Category 300 V CAT III, 600 V CAT II
Degree of protection IP40
Declaration of conformity CE & CNAS certified
Mechanical parameters 
Dimensions (W×D×H) (mm) 482×380×133
Weight (kg) 4.5
Environmental conditions 
Ambient temperature 0°C to 40°C
Storage temperature -20°C to +65°C
Relative humidity 10%-85%
Temperature coefficient ≤0.0005% /℃
Influence of external fields ≤0.05 %/mT

Download Catalogue

Related Products