YNDN-3H three-phase electric energy meter field calibrator is a new member of our company's electric energy meter calibrator series. It combines our company's years of experience in electric energy meter calibrators and combines valuable suggestions from many customers. Adhering to the consistent excellent quality of the torch instrument.

YNDN-3H three-phase electric energy meter field calibrator is a new and comprehensive instrument suitable for use in the field or laboratory. It integrates the functions of electric energy meter calibration, harmonic test, and electric energy meter wiring check. It is a rare and cost-effective instrument.

1. Adopt multi-processor combination work with high-speed floating-point DSP processor as the core, 6-channel synchronously maintaining 16-bit ADC converter to ensure synchronous calculation of voltage and current.

2. Using 8.4-inch 800×600 resolution industrial-grade TFT LCD screen, the display is clear, beautiful, and the amount of information is large. It can complete the calibration parameter setting, electrical parameter measurement, error test, vector diagram and other functions in one screen.

3. It adopts the human-computer interaction method combining buttons and touch screen, which is easy to operate.

4. It has 144 kinds of wrong wiring discrimination (three-phase three-wire 48 kinds, three-phase four-wire 96 kinds) function, and the wrong information is accurately and clearly described in text.

5. It can test the 2~51th harmonic content of the three-phase voltage and current in the power grid and the total harmonic content, and display it directly with a bar graph.

6. The waveform of each channel of voltage and current can be displayed.

7. The built-in current transformer is started at 2mA, and it can be used to judge the wrong wiring of the electric energy meter without load.

8. Built-in large-capacity Flash storage space, USB communication interface, plug and play upload test data.

9. There is no blind zone in the test, and it can measure all kinds of electric energy meters at home and abroad.

10. A variety of working power supply modes can be used, either from the mains or from the on-site test circuit.

1. Voltage test range: AC 30~450V

2. Current test range:

Built-in 5A current transformer: 0.05A~5.5A

Clamp current transformer:

Optional 5A, 50A, 100A, 500A, 1500A, the working range of each range is as follows:

3. Frequency test range: 45Hz~65Hz, accuracy: ±0.01Hz

4. Phase measurement range: -180°~+180°, accuracy: ±0.05°

5. Voltage and current accuracy: level 0.05

6. The accuracy of active power and active energy:

Built-in current transformer: Class 0.05

Clamp-on current transformer: Class 0.2

7. Reactive power and reactive energy accuracy:

Built-in current transformer: Class 0.1

Clamp-on current transformer: Class 0.5

8. Input impedance:

Voltage input impedance ≥300KΩ

Current input impedance ≤0.01Ω

9. Output standard electric energy pulse:

Low frequency electric energy pulse constant of this instrument (p/kW·h)

High-frequency energy pulse constant of this instrument (p/kW·h)

10. Deterioration within 24 hours: ≤±0.01%

11. Power consumption: <15W

12. Power supply: AC45~450V

13. Working environment:

Temperature: -25℃~+45℃

Relative humidity: 40%~95%

14. Dimensions: 320×260×140 (mm)

15. Weight: 3Kg