ZXDN-301 3 Phase Standard Reference Energy Meter Class 0.02 220V

• Standard portable aluminum case, smaller volume (currently the volume of domestic similar products 355×145×185mm) lighter weight (7.5kg), more convenient to carry.
   

• Wide range measurement: voltage measurement range (phase voltage) : 1 ~ 560V
  Current measurement range: 10mA ~ 120A
   

• Multiple methods of measurement: it can measure ac voltage, current, power (active power, reactive power, apparent power) and electric energy in 4 quadrant under various wiring modes such as single-phase, three-phase four-wire Y/ three-wire Δ; The reactive power and electric energy can be measured in many ways, such as true reactive power, quadrate reactive power and artificial neutral reactive power.
   

• Multi-functional measurement:
  A. Voltage, current, phase, frequency, active power, reactive power, power factor, error and other basic measurement functions.
  B. Voltage, current and power stability measurement (up to 5 power stability algorithms).
  C. Measurement of voltage and current three-phase amplitude asymmetry.
  D. Measurement of voltage and current three-phase unbalance.
  E. Measurement of phase misalignment.
  F. Vector graph display, a variety of vector graph display methods (clockwise rotation, counterclockwise rotation; 12:00 o 'clock, 3:00 o 'clock base position optional; Reference datum variable; Phase display mode: 0 ~ 360° or ±180° can be set) to meet various display habits.
  G. Waveform display, harmonic analysis, distortion calculation. Spectrum graph display; Can display harmonic amplitude, content, phase. The spectrum diagram has the function of magnification.
  H. Demand measurement
  I. Measurement of magnetic induction intensity in space.
  J. Measurement of pressure drop at the same end of the device.
  K. Measure the meter constant and frequency.
  L. Fundamental wave power measurement.
  M. The error (active power, reactive power, apparent, voltage and current) of three different types of meters can be verified at the same time.
  N.3 pulse outputs, constant can be set separately (automatic or manual setting), constant types can also be set separately: active power, reactive power, apparent, voltage, current.
  O. It can verify the comprehensive error of the device composed of three single-phase meters.
  P. Can be used as three single-phase standard meters.
   

• Fundamental wave power measurement: it can measure full power (including fundamental wave and harmonic wave power), and can only measure fundamental wave power.
   

• Electric energy error verification: it can verify the estimated value of electric energy measurement error and standard deviation of electric energy meter and electric energy meter verification device. And the pulse number, the calibration constant can be set automatically to improve the work efficiency. Especially the calibration device for multi-constant standard meter and electricity meter is more convenient to use. Special compensation technology, in small load, because the load is too small (energy pulse frequency is too low) will not cause the error jump too big. Display current error, standard deviation estimate, average error.
   

• Harmonic analysis: analysis of power frequency voltage, current 51 times below harmonics.
   

• Data and graphic display: can intuitively display the measurement status and a variety of measurement data. Can intuitively display the measured voltage, current waveform, voltage, current phase vector diagram, harmonic analysis wave bar diagram.
   

• Manual or automatic range switching.
   

• With storage function, can store 30 groups of data records. And can be retrieved according to the conditions.
   

• with pinyin input method: can input Chinese characters, letters, symbols
   

• Wiring: wide range current input terminal common, change the current without changing wiring, easy to use.
   

• multi-purpose: can be used as a standard meter, also can be used as electricity meter verification device tester. Can be used alone, can also be used with PC communication remote control, can also be used with verification device.
   

• Multiple communication interfaces: RS485, RS232, USB, using asynchronous communication: baud rate can be set.
   

• 6.4 inch 640×480 dot matrix TFT color LCD display, clear display, vivid color.
   

• Operation: humanized design, reasonable combination of functions, very simple operation.

Technical indicators:

1. Signal range
Voltage: 1 ~ 560V (phase voltage)
Current: 10mA ~ 120A
Frequency: 40 ~ 70 hz
Input pulse: Max. 2MHz (TTL)
Output frequency: use automatic constant, at rated range, output pulse frequency Fout: 60KHz
Accuracy of 2.
① Voltage measurement (RMS) : accuracy: 0.02 (Rd%).
Range: 30V, 60V, 120V, 240V, 480V five gears, automatic and manual shift.
② Current measurement (RMS) : accuracy: 0.02 (Rd%).
Range: 0.2a, 1A, 5A, 20A, 100A five gears, automatic and manual shift.
③ Active power, active electric energy measurement accuracy: 0.02 (Rd%).
④ Measurement accuracy of reactive power and reactive electric energy: level 0.05 (Rd%).
⑤ Frequency measurement: measurement range: 45 ~ 70Hz;
Resolution: 0.0001Hz;
Accuracy: ±0.01Hz.
⑥ Phase measurement: measurement range: 0 ~ 359.999° (0 ~ ±180°);
Resolution: 0.001°;
Accuracy: ±0.02°.
⑦ Pressure drop measurement of the same end:
Measuring range: 0 ~ 400mV;
Resolution: 0.1mV;
Accuracy: ± 0.02% ±1mV.
Magnetic induction intensity measurement:
Measuring range: 0 ~ 0.25MT;
Accuracy: ± 10% ± 0.001MT.
⑨ Harmonic voltage measurement:
2~10 times: harmonic content ≤30%; Error: 0.1%
11~21 times: harmonic content ≤30%; Error: 0.2%
22~51 times: harmonic content ≤30%; Error: 0.5%
⑩ Harmonic current measurement: 2~51 times: harmonic content ≤50%; Error: 0.1%
3. Input impedance
Voltage input impedance: ≥750K ω
Current input impedance: 0.001 ω
4. Work environment
Temperature: 15~30 oC Temperature coefficient: 0.0005/ °C
Preheating time: 30 minutes
Humidity: 45 ~ 80% r.h.
Power supply: 220V± 10% 50Hz± 1%
Power consumption: 50 or less va
5. Other
Volume: 355×185×145 mm
Weight: 7.5 kg

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