High-Precision On-Site Verification withZXDN-3BThree-PhaseEnergy MeterCalibrator

The ZXDN-3B handheld three-phase energy meter field calibrator is a high-precision instrument designed for comprehensive electrical parameter testing, meter verification, and power quality analysis. Unlike traditional laboratory-based calibrators or single-function testers, the ZXDN-3B integrates multiple functionalities—including电能表校验, CT secondary load testing, and power quality monitoring—into a portable device. Its advanced features and accuracy make it suitable for both field applications and laboratory use.

Key Advantages Over Conventional Tools

1.Comprehensive On-Site Verification:
Unlike conventional methods that often require disconnecting circuits or dismantling equipment, the ZXDN-3B performs online error detection under live load conditions. This eliminates downtime and reduces operational risks.

2.Multi-Parameter Measurement:
The device simultaneously measures voltage, current, active/reactive power, phase angle, power factor, and frequency. Compared to legacy instruments that focus solely on basic parameters, the ZXDN-3B calculates composite errors and provides vector diagrams for wiring correctness assessment. It automatically identifies 48 wiring modes in three-phase three-wire systems—a significant improvement over manual analysis.

3.Flexible Current Measurement:
With optional clamp-on CTs (ranging from 5A to 2000A), the ZXDN-3B avoids breaking current circuits. Traditional calibrators often require direct wiring, increasing complexity and safety concerns.

4.Power Quality Analysis:
The instrument monitors frequency deviation, voltage fluctuation, unbalance, and harmonics—features typically found in dedicated power quality analyzers. This integration reduces the need for additional devices.

5.Dual-Pulse Input and Communication Testing:
It supports simultaneous main/sub-meter verification via dual pulse inputs and tests RS485 communication for smart meters. Most conventional calibrators lack such advanced communication capabilities.

3.Portability and User-Friendly Design:
Weighing only 2kg with a compact size (25×16×6 cm), the ZXDN-3B outperforms bulky benchtop calibrators. Its graphical LCD with Chinese/English interfaces simplifies operation.

Technical Highlights

1.Accuracy:

Voltage/Current: ±0.05% (built-in CT), ±0.2%~0.5% (clamps)

Active Power/Energy: ±0.05% (built-in), ±0.2%~0.5% (clamps)

Phase Angle: ±0.1°
This rivals the precision of laboratory-grade standards.

2.Power Quality Metrics:

Harmonic Voltage/Current Error: ≤0.1%/0.2%

Unbalance Error: ≤0.2%

3.Secondary Load Test:
Measures conductance, susceptance, and load with ±1% accuracy.

4.Optional Features:
Barcode scanning and WiFi/Bluetooth modules enable remote control and data management—a step ahead of traditional calibrators.

Conclusion

The ZXDN-3B combines the accuracy of a reference standard with the versatility of a power quality analyzer and the portability of a field tool. For technicians, it streamlines workflows, reduces equipment costs, and enhances diagnostic capabilities in modern grid environments. Its integrated design and advanced features set a new benchmark for on-site calibration devices.

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/