MC-0301CT AC/DC Meter Calibration Bench

Model: MC-0301CT (without computer and printer) Quantity: 1 set Manufacturer: Hubei MECI Electric Power Equipment Co., Ltd

Category: Metrological verification device

Keywords: MC-0301CT AC/DC Meter Calibration Bench

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Product Overview

This instrument consists of a microprocessor-controlled three-phase calibration source, a DC standard source, a Class 0.05 three-phase sampling-type multifunctional standard meter, and a computer equipped with calibration and management software. The instrument’s technical specifications comply with relevant national and industry standards and verification procedures. The calibration source delivers stable, safe, and reliable output and is easy to use; the standard meter is highly accurate and stable, fully functional, and capable of multiple applications in a single unit. The verification system comprising the source, meter, and computer can automatically verify meters under test that provide corresponding electrical quantity output information and generate verification reports that meet the requirements of the applicable procedures.

Product Features

1. This device can verify AC instruments, DC instruments, transmitters, AC sampling meters, electric energy meters, and harmonic meters of class 0.2 (or 0.1) and lower.

Measurement instruments, etc.

2. This device is equipped with a standard meter and a high-precision digital-to-frequency converter (DFC), with a maximum standard pulse output frequency of 2 MHz. Through

With computer control, automatic verification of electric energy meters can be achieved.

3. The following technical specifications of the device enable self-checking (provided that the accompanying standard meter is equipped with a valid certificate of conformity):    

A. Stability of the device’s output voltage, current, single-phase power, and three-phase power;    

B. Distortion of output voltage and current;   

C. Three-phase voltage symmetry and three-phase current symmetry;    

D. Magnetic flux density at the location of the meter under test (option).

Technical Specifications

AC output

  • Voltage range (V): 10, 20, 50, 100, 200, 400, 800;     
  • Current ranges (A): 0.1, 0.25, 0.5, 1, 2.5, 5, 10, 25, 50, 100;     
  • Adjustment range: 0–120% (except for 800 V voltage and 100 A current);     
  • Fineness adjustment: 0.005%;     
  • Output voltage, current, and power stability ≤0.01% over 60 seconds (peak-to-peak);     
  • Maximum output capacity per phase voltage: 50 VA;     
  • Maximum output capacity per phase current: 100 VA;     
  • Harmonic distortion at sine-wave output ≤0.3%.

Fundamental Phase Shift     

  • Phase shift by U A For reference, U B , U C and I A , I B , I C All can perform phase shifting of the UA from 0.00° to 359.99°; 　　
  • The current can perform unified three-phase phase shifting of like-named phase voltages within a range of 0.00° to 359.99°, and the per-phase adjustment of amplitude and phase enables the output of the required unbalanced three-phase output.     
  • Accuracy: ±0.2°.

 

Output frequency       

  • Adjustment range: 45–65 Hz;   　 
  • Fineness adjustment: 0.001 Hz;   　 
  • Setpoint accuracy: 0.01 Hz.
  •  

Distorted Wave Output     

  • Harmonic order: 2nd to 31st; number of harmonics simultaneously present: 0 to 30.     
  • Harmonic amplitude: The peak-to-peak value of the total harmonics shall not exceed 50% of the fundamental wave’s rated value expressed in peak-to-peak terms (i.e., the voltage or current range); furthermore, the peak-to-peak value of the distorted waveform, including the fundamental wave, shall not exceed 125% of the fundamental wave’s rated value expressed in peak-to-peak terms.     
  • Phase shift of each harmonic relative to the fundamental (with the fundamental’s positive zero crossing as the reference phase): 0° to 360°.

 

Three-phase phase-angle symmetry (under conditions where no individual-phase phase adjustment has been performed)     

  • Three-phase four-wire system: phase voltages are 120° ± 0.2° apart.     
  • Three-phase three-wire U AB To U CB Lag of 60° ± 0.2°;     
  • Phase current relative to like-named phase voltage: ±0.2°.

 

DC output     

  • Voltage range (including auxiliary ranges)       
  • mV: 45, 50, 60, 75, 100, 150, 200, 250, 300;        
  • V: 0.15, 0.2, 0.25, 0.3, 0.45, 0.5, 0.6, 0.75, 1, 1.5, 2, 2.5, 3, 4.5, 5, 7.5, 10, 15, 20, 25, 30, 45, 50, 60, 75, 100, 150, 200, 250, 300, 450, 600, 750, 1000; ·

Current ranges (including auxiliary ranges)       

μA: 5, 7.5, 10, 15, 20, 25, 30, 50, 75, 100, 150, 200, 250, 300;       

mA: 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 5, 7.5, 10, 15, 20, 25, 30;         

A: 0.05, 0.075, 0.1, 0.15, 0.2, 0.25, 0.3, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 5, 7.5, 10, 15, 20, 25, 30;    

  • Output power: up to 30 W;     
  • Adjustment range: 0–120% (except for 1000 V voltage and 30 A current);   
  • Fineness adjustment: 0.002%; ·Accuracy: 0.05 (0.02)%;     
  • Stability: Change in full-scale output over 1 minute ≤ ±0.01% of span; Error caused by ripple and noise voltage ≤ ±0.01% RG; Error caused by load variation from no-load to full-load ≤ ±0.01% RG.

Accuracy class of the device 0.05 (0.03).

Permissible errors for the device’s measurement of power-frequency voltage, current, active power, and active energy 0.05% (0.03%).

Permissible error for measuring reactive power and electrical energy by the device 0.1%. Phase measurement error: ±0.05°.

Power Factor Measurement Error ±0.0002.

Power Supply Single-phase, 220 V ±10%, 50 Hz ±5%.

Operating Environment Temperature: 20°C ± 10°C; relative humidity: ≤85% RH.

Countertop Dimensions and Weight 2000×1000 mm; 135 kg.

 

MC-0301CT AC/DC Meter Calibration Bench

MC-0301CT AC/DC Meter Calibration Bench

Model: MC-0301CT (without computer and printer) Quantity: 1 set Manufacturer: Hubei MECI Electric Power Equipment Co., Ltd

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Tel： 86-13307164232

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