MC-0301C AC/DC Meter Calibration Device

Model: MC-0301C Quantity: 1 set Manufacturer: Hubei MECI Electric Power Equipment Co., Ltd

Category: Metrological verification device

Keywords: MC-0301C AC/DC Meter Calibration Device

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Product Overview

This instrument is a three-phase, Class 0.05 meter-source integrated device designed in accordance with the verification procedures JJG 124–2005 “Verification Procedure for Ammeters, Voltmeters, Wattmeters, and Ohmmeters,” JJG 307–2006, and relevant national standards. The core technology of the meter section is a high-precision power-frequency AC data acquisition unit comprising a digital signal processor (DSP) and a 16-bit high-speed analog-to-digital converter; the source section also utilizes a DSP and a 16-bit high-speed digital-to-analog converter to generate controllable sinusoidal and distorted waveforms. The instrument features high accuracy, stable and reliable operation, and convenient, flexible operation. The display employs a 6.5-inch TFT color LCD screen, providing clear graphical and textual visualization.

Product Features

1. Can automatically or manually verify various power-frequency meters in the power system (voltmeters, ammeters, wattmeters, frequency meters, power factor meters, phase…

the basic errors of single-phase AC energy meters and three-phase AC energy meters (optional), as well as DC voltage and current meters.

2. When measuring AC voltage, current, and active power, the accuracy is Class 0.05; moreover, the device is equipped with a operating frequency exceeding 60 kHz.

It is equipped with a digital-to-frequency converter (DFC) and multiple current ranges, ensuring measurement accuracy of 0.05 class when measuring electrical energy.

3. It can generate distorted waveforms containing 2 to 31 harmonics, with the number of harmonics, their order, amplitude, and phase relative to the fundamental all being programmably controlled.

4. Equipped with an RS-232 interface or a USB interface. Using host computer software, the device can be controlled by a PC to perform automatic or manual inspections and to process and manage the test results.

5. Equipped with a high-capacity non-volatile memory that can store the raw test data for 300 meters under inspection, for retrieval and upload.

Technical Specifications

Power-frequency AC output

  • The voltage ranges are 50 V, 100 V, 200 V, 400 V, and 600 V (with an optional 800 V range), and the maximum output capacity per phase is 20 VA.
  • The current ranges are 0.5 A, 1 A, 2.5 A, 5 A, 10 A, and 20 A, with a maximum output capacity of 20 VA per phase.
  • The voltage and current adjustment range is 0–130%, with an adjustment resolution of 5×10⁻⁵.
  • The accuracy for voltage, current, active power, and electrical energy is 0.05%.
  • The accuracy of reactive power and electrical energy is 0.1%.
  • The phase accuracy of the current with respect to the voltage of the same-named phase is 0.05°.
  • The frequency adjustment range is 45 to 65 Hz, with a resolution of 0.001 Hz and an accuracy of 0.01 Hz for the setpoint. The phase adjustment range is 0 to 359.99°, with a resolution of 0.01° and an accuracy of 0.05° for the setpoint.
  • The distortion of the voltage and current output waveforms shall not exceed 0.3%.
  • The stability of voltage, current, and power output shall not exceed 0.01% over a 60-second interval (peak-to-peak).
  • In terms of harmonics, the device supports orders 2 through 31, with amplitude ranging from 0% to 20% and phase resolution of 0.01°·N (where N is the harmonic order).

DC output

The voltage ranges are 75 mV, 75 V, 150 V, 300 V, 500 V, and 1000 V, with a maximum output power of 20 W. The current ranges are 0.5 A, 1 A, 2.5 A, 5 A, 10 A, and 20 A, also with a maximum output power of 20 W. The voltage and current adjustment range is 0–120% (except for the 1000 V range), with an adjustment resolution of 5 × 10⁻⁵. The voltage and current output stability is no greater than 0.01% over 60 seconds (peak-to-peak). The voltage setpoint accuracy is 0.05%, and the current setpoint accuracy is 0.1%. For the 75 mV output (with a load of at least 5 Ω), the accuracy is 0.1%.

Power Supply

Single-phase 220 V ±10%, 50 Hz ±5%.

Operating Environment

Temperature: 20°C ± 10°C; relative humidity: not more than 85% RH.

Volumetric weight

The external dimensions are 460 × 460 × 175 mm, and the weight is approximately 20 kg.

MC-0301C AC/DC Meter Calibration Device

MC-0301C AC/DC Meter Calibration Device

Model: MC-0301C Quantity: 1 set Manufacturer: Hubei MECI Electric Power Equipment Co., Ltd

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Tel： 86-13307164232

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