DF-300 Handheld Three-Phase Meter

1. High accuracy, high stability 2. Low power consumption, easy to use 3. 240x160 LCD, dynamic display, easy to read

I. Introduction

DF~300 Handheld Three~phase Meter is high accuracy, high stability, low power consumption, easy to use. Can test the three~phase AC voltage, current, phase between voltage, phase between current, phase between voltage¤t, frequency, phase, active power, reactive power, apparent power, power factor, vector sum when the measurement circuit is not opened.

It can also identify the transformer wiring group, inductive circuit, capacitive circuit, test the secondary circuit and bus bar protection system, read the phase relations of each CT of the differential protection system, check if the ammeter is wiring correctly, check the circuit and equipment. 

This device applies to electric power, petrochemical corporation, metallurgy, railway, industrial and mining enterprises, research institutions, metrology department, etc, especially applies to power quantity measurement system and relay protection system. 

II. Features & Functions

1. Equipped with shock-proof, skid-proof, high insulating protective jacket.2. Uses 240×160 LCD, dynamic display, vector diagram indicates, easy to read.3. There are two models current clamp, the cuspate & small ones apply to positions of wire~intensive, the round & big ones apply to test the heavy gage wires.4. High precision, high stability, low power consumption.5. Safe, accurate, convenient. 

III. Specifications

Influence factor	Reference conditions	Working conditions	Remark
Temperature	23°C±1°C	-10°C~40°C	/
Humidity	40%~60%	<80%	/
Signal waveform	Sine wave	Sine wave	β=0.01
Signal frequency	50HZ±1HZ	45HZ~65HZ	/
Working voltage	9V±0.1V	9V±1.5V	/
Current amplitude when testing the phase frequency	200mA±10mA	2mA~20A	/
Voltage amplitude when testingthe phase frequency	100V±20V	10V~600V	/
Current amplitude when testing the power factor	200mA±10mA	20mA~20A	/
Voltage amplitude when testing the power factor	100V±20V	10V~600V	/
External electric field, external magnetic field	Should avoid
The position of the measured wire	Put the wire should be put at the geometric center of the jaw.

category	Measurement range	Resolution	Intrinsic error
voltage	AC 0.00V~600V	0.01V	±(1.5%rdg+3dgt)
current	AC 0.0mA~20.0A	0.1mA	±(1.5%rdg+3dgt)
phase	0.0°~360°	0.1°	±1°
Active power	0.0W~12kW	0.1W	±(3%rdg+3dgt)
Reactive power	0.0VAR~12kVAR	0.1VAR	±(3%rdg+3dgt)
Apparent power	0.0VA~12kVA	0.1VA	±(3%rdg+3dgt)
Frequency	45HZ~65HZ	0.01HZ	±(2%rdg+3dgt)
Power factor	-1~+1	0.001	±0.03

Note: phase error ±3° under working (phase error ±5° if current amplitude under 10mA). 

DF-300 Handheld Three-Phase Meter