Precision and Versatility in Meter Calibration: The ZXDN-3 Analyzer

For technical professionals in the power and energy sector, accurate measurement and calibration of metering equipment are critical for system efficiency, billing integrity, and compliance. The ZXDN-3 Multi-functional Energy Meter Calibrator stands out as a comprehensive tool designed to address a wide range of field and lab applications. This article provides a technical overview of its features and performance, with comparisons to highlight its capabilities.

Key Features and Capabilities

The ZXDN-3 is engineered to measure essential electrical parameters in three-phase systems, including voltage, current, active power, reactive power, power factor, phase angle, and frequency. Its ability to perform integrated error measurements on-site makes it particularly valuable for verifying the accuracy of energy meters without removing them from service.

A notable feature is the dual current input flexibility: users can connect via terminals for direct measurement or use optional clamp meters (available in ranges up to 2000A) for non-invasive testing. This adaptability is especially useful in field conditions where disconnecting circuits may be impractical.

The device also provides a hexagon vector diagram, which aids technicians in visualizing phase relationships and identifying wiring errors or imbalances quickly. Additionally, it offers high-accuracy CT turns ratio measurement, a function not always available in general-purpose calibrators.

With onboard storage for 500 datasets and PC connectivity, the ZXDN-3 supports data logging and detailed analysis. Its user-friendly LCD interface and portability (weighing only 2.0 kg) make it suitable for both lab and field use.

Performance and Technical Comparison

When compared to simpler testers or older calibration equipment, the ZXDN-3 demonstrates superior accuracy and functionality. For instance:

Voltage and Current RMS Accuracy: ±0.1% for voltage and ±0.1% with built-in CT (±0.2% with split CT). This exceeds the typical ±0.5% found in many mid-range testers.

Power Measurement: Active power accuracy is ±0.1% (built-in CT) or ±0.2% (split CT), while reactive power is ±0.3% (built-in) or ±1.0% (split). This level of precision is critical for calibration tasks where even minor errors can lead to significant revenue discrepancies.

Frequency and Angle Measurement: Frequency accuracy is ±0.01Hz (45-65Hz), and phase angle accuracy is ±0.1°. These specs are particularly important for power quality assessment and sync-check applications.

In contrast, many legacy calibrators lack integrated error calculation, vector diagrams, or CT ratio testing, requiring additional devices and increasing complexity.

Technical Specifications Summary

1.Energy Measurement Accuracy: ±0.1% (built-in CT), ±0.2% (split CT)

2.Voltage Range: 0-400V (20% overload not allowed)

3.Current Ranges: Built-in CT: 0-10A; Split CT options: 20A, 100A, 500A, 1000A, 2000A

4.Power Supply: DC 8.4V ±10%, consuming ≤8VA

5.Environmental Operating Range: -15°C to 60°C, 0-90% RH

6.Dielectric Strength: Input terminals withstand 1.5kV RMS to case for 1 minute

Conclusion

The ZXDN-3 Multi-functional Energy Meter Calibrator offers a blend of high accuracy, versatility, and user-centric design that meets the demands of modern energy measurement and calibration. Its comprehensive feature set—including vector visualization, CT testing, and data logging—provides technicians with a powerful tool for ensuring metering accuracy and system reliability. For organizations seeking to enhance their calibration capabilities, the ZXDN-3 represents a robust solution that outperforms many conventional devices in both spec and practicality.

GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/