• 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

GFUVE GF211B Specifications:

Electrical parameters
Accuracy class	1%
Power supply	3.7V batteries
Scale
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%
Accessory
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