High-Accuracy Single-Phase Smart Energy Meter Calibration Device

The YC-1891G Single-Phase Intelligent Electricity Meter Calibration Device is a professional smart meter test system designed for utility companies, metrology laboratories, and electricity meter manufacturers.
It provides high-precision, stable, and fully automated electricity meter calibration compatible with international standards and modern smart metering technologies.

Built with wide voltage and current output ranges, excellent long-term stability, and support for multiple communication protocols, this device is ideal for smart meter verification, production testing, and laboratory-grade calibration.

Key Applications

• Smart electricity meter calibration and verification

• Single-phase meter accuracy testing

• Laboratory and production line metrological evaluation

• Full-function electricity meter error and performance testing

Technical Specifications

Power Supply

• Voltage: AC220V ± 15%

• Frequency: 50/60Hz ± 2Hz

Environmental Conditions

• Operating Temperature: –10°C to +40°C

• Humidity: 35%–85% R.H.

Output Voltage

• Range: 0–480V

• Resolution: ≤0.01V

• Power: >10VA (per step)

• Stability: ≤0.02% / 120s

• Load Change Rate: ≤0.01%

• Distortion: ≤0.3% (full linear load range)

Output Current

• Range: 0–120A

• Resolution: ≤0.01%

• Power: >15VA (per step)

• Stability: ≤0.02% / 120s

• Load Change Rate: ≤0.01%

• Distortion: ≤0.3% (linear load range)

Phase & Frequency

• Phase Range: 0–360° (Resolution: 0.01°)

• Frequency Range: 45–65Hz (Resolution: 0.01Hz)

• Output Power Stability: ≤0.02% / 120s

Error Display

• Signal Input: Electronic pulse or LED optical signal

• Display: 8-digit LED digital display

Communication

• Fully compliant with DL/T645-2007 and DL/T645-2009-001/002 standards

• Supports RS485, infrared, and PLC carrier communication (optional)