GF211B Multifunction onsite handheld digital phase angle meter

phase angle meter

GF211B multi-function double clamp digital phase angle meter is a multi-functional portable instrument. It is an ideal choice for electric power bureau, factories, mine, petroleum-chemistry enterprises, metallurgy factories and so on.



  • Measure phase angle between two voltages, between two current or between voltage and current
  • Measure alternating voltage (U), alternating current (I), frequency (F), active power (P), reactive power (Q), power factor (PF) and so on.
  • Current signal is obtained by the clamp current transformer on line directly
  • Discern inductive circuit and capacitive circuit;
  • Directly read differential protection phase among every unit of CT
  • Can check connection of transformer
  • Measure two way voltage phase sequence
  • Can check whether the meter connection is right or not
  • Can evaluate the running speed of electric kWh meter
  • High resolution of current, so can be used as a leakage current meter


Electrical parameters 
Accuracy class  0.5%
Power supply 3.7V batteries
Phase 0-360°
AC Voltage 0-500V
AC Current 200mA / 2A / 10A
Frequency 45-65Hz
Active power accuracy 0.5%, resolution 0.01W
Power factor -1 ~ 0 ~ 1, resolution 0.001
Fundamental error (under standard operating environment)
Temperature 23°C±5°C
Moisture <65%
Wave form Sine wave Distortion ≤1%
Frequency 50±2Hz, 60±2Hz
Wire position Center of clamp
Phase measurement Voltage: 100V±25V
Current: 1A±0.2A
Phase accuracy 1.0% FS
Voltage accuracy 
200V 1.0FS, Resolution 0.1V
500V 1.0FS, Resolution 1V
Current accuracy 
10A 1.0FS, Resolution 10mA
2A 1.0FS, Resolution 1mA
200mA 1.0FS, Resolution 0.1mA
Input impedance 
When measure voltage 1MΩ
Input voltage impedance >120KΩ when measure phase
Phase measurement 
Voltage range 2-500V
Current range 0.005-10A
Additional error 
Measure phase angle, the voltage and the current Less than the fundamental error
Measure current The error led by wires away from center of clamps is less than the fundamental error
Safety specification  
Resistance to voltage The meter can resist 1000V (AC sine wave, 50Hz or 60 Hz) for 1 minute between the meter circuit and the meter case; Between input joint U1 and U2 can resist 500V (AC sine wave, 50Hz or 60 Hz) for 1 minute.
Insulation resistance The resistance both between the meter circuit and the meter surface and between the terminals U1 and U2 is greater than 100MΩ.
Mechanical parameters 
Dimensions (W×D×H) (mm) 185×85×41
Weight (kg) 0.26
Environmental conditions 
Working temperature 0°C±40°C
Humidity ≤80%
Multi-function double clamp digital phase angle meter 1 piece  
Clamps 10A 2 pieces
Clamp wire 2 pieces
Voltage wire 2 pieces
User's manual 1 piece  
Certification of quality 1 piece  
Box 1 piece  

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