Overview
The HG6503 Multi-functional Precision Calibration Instrument is a multi-range, wide-range, high-precision seven-and-a-half-digit output and display calibration instrument. It can output high-accuracy DC voltage/current, AC voltage/current, DC power, and AC power with power factor control. It also features resistance and capacitance simulation functions. Suitable for calibrating or verifying various voltage meters, ammeters, power meters, power factor meters, phase meters, frequency meters, multimeters, multifunction meters, AC/DC clamp meters, and various power measurement transmitters with accuracy below 0.05. It can also be used as a standard source. The instrument fully complies with the relevant requirements of JJG 124-2005 "Current Meters, Voltage Meters, Power Meters, and Resistance Meters Verification Procedures," JJF 1075-2015 "Clamp Meters Calibration Specification," JJF 1587-2016 "Digital Multimeter Calibration Specification," JJF 1284-2011 "AC/DC Meters Verification Instrument Calibration Specification," GB/T 15637-2012 "General Specification for Verification Devices of Digital Multimeters," GB/T 15481-2000 "General Requirements for the Competence of Testing and Calibration Laboratories," and JJF 1059.1-2012 "Expression and Evaluation of Measurement Uncertainty." It is widely used in quality control, metrology, research and education, and instrument maintenance in industrial and mining enterprises, aerospace, scientific research institutions, railways, power companies, and schools.
II. Main Functions and Features
The following instruments are verifiable by this device: indicator meters, AC/DC voltage meters, AC/DC current meters, AC/DC power meters, power factor meters, phase meters, resistance meters, capacitance meters, frequency meters, clamp-on meters, and pressure or temperature transmitters, etc.
2.1 DC/AC voltage output peak: 1100V, current peak: 30A, AC frequency range: 45Hz ~ 1kHz.
2.2 Analog Resistance Range: 0 ~ 200MΩ; Analog Capacitance Output Range: 1nF ~ 200uF; Continuously adjustable.
2.3 Accurately outputs DC power, AC active power, apparent power, and power factor.
2.4 High load capacity, ensures stable and accurate measurements under full load conditions, and can cover the calibration of analog meters.
2.5 Features direct input of output values, potentiometer adjustment, rotary encoder, and step ratio for various value adjustments.
2.6 Equipped with a large LCD touch screen, the value display is intuitive and operation is extremely convenient.
2.7 AC/DC Voltage Output Range: 0~1000V.
2.8 DC/AC Current Output Range: 0 to 30A.
2.9 DC/AC Resistance Output Range: 0-200M
2.10 DC/AC Capacitance Output Range: 0~200uF.
2.11 Equipped with our factory-standard coil, it can calibrate AC/DC clamp meters, with a verification range of 0-1000A.
2.12 Outputs are equipped with comprehensive hardware and software protection features, enhancing the long-term reliability of the equipment.
2.13 The DC output can change the polarity of the positive and negative; when calibrating the pointer-type meter, a gradual change mode is available.
2.14 This instrument supports smooth upgrades and additional features; please contact our company for any needs.
III. Main Technical Specifications
3.1 DC Voltage Technical Specifications (20℃ ± 2℃):
Range | Adjust Fineness | Accuracy ± (Reading Value % + Full Scale %) | Wavy texture Coefficient | Load Capacity | |
Rated Value | Peak | ||||
75mV* | 5ppm | 0.012%RD+0.008%RG | ＜0.05% | 100 mA | 1000 mA |
200mV | 200 mA | ||||
2V | 0.003%RD+0.002%RG | 500 mA | |||
20V | 200 mA | ||||
200V | 0.012%RD+0.008%RG | 50 mA | |||
1000V | 50 mA | 300 mA | |||
* Among them, the additional error below 7.5mV is ±7.5μV.
3.2 DC Current Technical Specifications (20℃ ± 2℃):
Range | Adjust fineness | Accuracy ± (Reading Value % + Full Scale %) | Wavy texture Coefficient | Load Capacity |
200uA | 5ppm | 0.012%RD+0.008%RG | ＜0.2% | 50V |
2mA | 0.007%RD+0.003%RG | |||
20mA | ||||
200mA | ||||
2A | 0.012%RD+0.008%RG | |||
10A | 30V | |||
30A | 0.03%RD+0.02%RG |
3.3 Technical Specifications for AC Voltage (20℃ ± 2℃):
Range | Load Capacity | Adjust Fineness | Accuracy ± (Reading Value % + Full Scale %) | Distortion Rate | |
45-400Hz | 400-1000Hz | ||||
200 mV | 800 mA | 50ppm | 0.03%RD+0.02%RG | <0.2% | |
2 V | 0.02%RD+0.01%RG | 0.03%RD+0.02%RG | |||
20 V | |||||
200 V | 500 mA | ||||
1000 V | 200 mA | 0.03%RD+0.02%RG | |||
* Test measurements can be conducted using a dedicated shielded cable for voltages below 10V, which can enhance output accuracy.
3.4 Technical Specifications of交流 Current (20℃±2℃):
Range | Load Capability | Adjust Fineness | Accuracy ± (Reading Value % + Full Scale %) | Distortion | ||
45-400Hz | 400-1000Hz | |||||
2mA | 36V | 50ppm | 0.03%RD+0.02%RG | <0.2% | ||
20 mA | ||||||
200 mA | 50V | 0.02%RD+0.01%RG | 0.03%RD+0.02%RG | |||
2A | ||||||
10A | 20V | |||||
30A | 0.03%RD+0.02%RG | |||||
Below 100mA, the use of a dedicated shielded cable for testing and measurement can enhance output accuracy.
3.5 Technical Specifications of AC/DC Clamp Meters (20℃ ± 2℃)
Range | Load Capability | Adjust Fineness | Accuracy ± (Reading Value % + Full Scale %) | Distortion | ||
50Hz | 400Hz | 1kHz | ||||
20A | 1.3V | 50ppm | 0.03%RD+0.02%RG | 0.06%RD+0.04%RG | ＜0.2% | |
100A | ||||||
200A | ||||||
500A | ||||||
1000A | —— | |||||
3.6 Power, Power Factor, Phase, Frequency Technical Specifications (20℃ ± 2℃):
Project | Scope | Accuracy |
交流功率 - AC Power | 1W to 30kW continuous adjustable | PF = ±0.8 to ±1 (at 50Hz), < 0.05% FS PF = ±0.8～±0.5 at 50Hz, < 0.1%FS |
Direct Current Power | 1W to 30kW continuous adjustable | 0.02%FS |
Power Factor | Continuous adjustable from -1 to 1 | ＜0.05% |
Phase | 0～360° | ＜0.02° |
Frequency (Sine Wave) | 45Hz～200Hz | ＜0.02% |
200Hz～600Hz | ＜0.03% | |
600Hz～1000Hz | ＜0.05% |
Communication Power Assessment Scope:
Voltage: 30V, 100V, 300V, 600V
Current: 1A, 2A, 5A, 10A, 20A
Frequency: 50 Hz
Power Range: Combination of voltage range and current range (AC voltage greater than 10V, AC current greater than 100mA).
Note: FS = Voltage Range × Current Range.
3.7 Simulation Resistor Technical Specifications (20℃ ± 2℃):
Range | Resolution | Short-term stability （%RG/min） | Accuracy within one year ± (Reading Value % + Full Scale %) |
20Ω | 1mΩ | 0.02 | 0.05%RD+50mΩ |
200Ω | 10mΩ | 0.01 | 0.03%RD+0.02%RG |
2kΩ | 0.1Ω | ||
20kΩ | 1Ω | ||
200kΩ | 10Ω | ||
2MΩ | 0.1kΩ | ||
20MΩ | 1kΩ | 0.05 | 0.12%RD+0.08%RG |
*200MΩ | 10kΩ | 0.1 | 0.6%RD+0.4%RG |
Use a dedicated shielded test cable for resistance measurement.
To ensure the stability of resistance measurement values, please use the four-wire measurement method below 1kΩ.
Over 100MΩ can be measured but accuracy is not assessed.
3.8 Simulation Capacitance Technical Specifications:
Capacitance Range | Short-term stability （%RG/min） | Accuracy within one year ± (Reading Value % + nF) | Frequency Range |
0.8nF～1nF | 0.2 | 0.5%RD + 0.1nF | 10K～50K |
1nF～10nF | 0.2 | 0.5%RD + 0.3nF | 750Hz～2.5K |
10nF～20nF | 0.1 | 0.5%RD + 0.2nF | 500Hz～2K |
20nF～200nF | 0.05 | 0.2%RD + 0.5nF | 500Hz～2K |
200nF～1μF | 0.05 | 0.2%RD + 1nF | 200Hz～1K |
1μF～10μF | 0.05 | 0.2%RD + 10nF | 75Hz～200Hz |
10μF～100μF | 0.1 | 0.5%RD + 50nF | 50Hz～100Hz |
100μF～200μF | 0.1 | 0.5%RD + 200nF | 50Hz～75Hz |
3.9 Other Technical Specifications:
Weight: ≤ 16kg (excluding accessories and packaging box)
Volume: 480mm x 420mm x 135mm
Operating Voltage: AC 220V ±10%
Work Environment: Temperature -20 to 40°C; Relative Humidity ≤ 85%.
