Henan Defy Electronics Co., Ltd.
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  • Contact Person : Ms. Si Lisa
  • Company Name : Henan Defy Electronics Co., Ltd.
  • Tel : 0086-371-55819257
  • Fax : 0086-371-66770722
  • Address : Henan,Zhengzhou,7/F, Building 68, Enterprise Headquarters Base, High-Tech Development Zone
  • Country/Region : China

Three Phase Reference Meter

Three Phase Reference Meter
Product Detailed
Related Categories:Energy Meters
1. 0.05% accuracy 2. Ideal reference standard for testing applications 3. Intuitive user interface

DFM-2 Portable Three-phase Reference Meter

I. Introduction

DFM-2 is suitable for three phase electrical energy meter testing equipments and metrical instruments. It can measure all kinds of parameters, including RMS of current, RMS of voltage, DC component, power factor of all the phases, phase angle between voltage and current, phase angle between one voltage and another, active power, apparent power, frequency, harmonics and distortion.

II. Features

1. High accuracy and multiple function.

2. Convenient operating menu and interface.

3. Auto range for voltage and current.

4. Calibrating the meter testing equipments and measuring magnetic induction intensity.

5. Adopt large-scale programmable logic circuit, complete digital sampling DSP technique, and minimize affectability form environment.

III. Specifications

1. Voltage range:30V~750V, accuracy:0.02%

2. Current range:25mA~100A, accuracy:0.02%

3. Accuracy of active power: 0.02%

4. Accuracy of reactive power: 0.04%/0.1%

5. Accuracy of apparent power: 0.04%/0.1%

6. Accuracy of active electric energy: 0.02%

7. Phase range:0°~359.9°, accuracy: 0.02%

8. Frequency range:45Hz~65Hz, accuracy: 0.02%

9. Harmonic range:0~31, accuracy: ±0.5%

IV. Working Environment

1. Rated temperature: 23°C±2°C 

2. Working temperature: 10°C~30°C

3. Max. working temperature: 0°C~40°C

4. Working humidity: 45~80%R.H

5. Power supply voltage: 220V±10%  50Hz±1%

6. Power consumption: ≤50VA

Three Phase Reference Meter



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