Leakage Protector Tester LBQ-II: Performance & Portability for Field and Lab

Introduction
Ensuring the reliable operation of leakage protectors (RCDs/RCBOs) is critical for electrical safety. Testing these devices requires accurate measurement of both their trip current and trip time. The LBQ-II Leakage Protector Tester addresses this need with a compelling blend of precision, versatility, and field-ready design.

Core Capabilities of the LBQ-II
Designed for both on-site and laboratory use, the LBQ-II excels at directly measuring the two key parameters of any leakage protector:

Leakage Operating Current (IΔn): Accurately determines the actual current level at which the protector trips. Range: 15mA to 500mA in common preset steps (15, 30, 50, 75, 100, 150, 200, 250, 300, 500mA) with Class 1 accuracy.

Leakage Operating Time (tΔ): Directly measures the time elapsed between fault current application and device trip. Range: 0-799ms with high display accuracy (±0.5% ±2 digits).

Key Features Driving Efficiency

Handheld Portability: Compact dimensions (195x101x42mm), light weight, and robust build make it ideal for carrying in a tool bag and use in confined spaces.

Universal Compatibility: Tests single-phase and three-phase leakage protectors across common residential, commercial, and industrial voltage systems (Rated: AC 220V, 380V; Limited test voltage: <250V AC).

Automated Testing (Auto IΔn): Streamlines the process of finding the precise trip current, saving significant technician time compared to manual ramp methods.

Intuitive Operation & Readout: A clear 16-character blue-backlit LCD displays measured values directly (e.g., "25.6 mA" or "21.3 ms"), eliminating calculation errors and improving readability in various lighting conditions.

High Accuracy: Delivers reliable results meeting Class 1 standards for current and ±0.5% for time, essential for compliance testing and performance verification.

The LBQ-II Advantage: A Comparative Perspective

While various leakage protector testers exist, the LBQ-II carves a distinct niche:

Versatility vs. Simplicity: Many basic testers only apply a fixed leakage current for a pass/fail time check using an internal timer. The LBQ-II goes significantly further: it can both automatically determine the actual trip current (IΔn) and directly measure the exact trip time (tΔ) at any chosen current level within its range. This provides a much more comprehensive performance picture.

Portability vs. Capability: Some high-precision benchtop instruments offer similar measurement capabilities. However, the LBQ-II achieves excellent accuracy (Class 1 current, 0.5% time) while maintaining a truly handheld, field-portable form factor. Technicians don't sacrifice critical functionality for convenience.

Ease of Use vs. Functionality: The combination of auto-test modes, clear direct readouts on the LCD (e.g., "TRIP 150mA" or "TIME 28ms"), and straightforward operation makes complex testing accessible. It avoids the complexity often associated with multifunction testers while delivering essential, dedicated leakage protector metrics.

Three-Phase Readiness: Many simple handheld testers are limited to single-phase applications. The LBQ-II's design explicitly includes testing capability for common three-phase leakage protectors (up to 380V AC), broadening its utility significantly for industrial technicians.

Technical Specifications Recap

Conclusion
The LBQ-II Leakage Protector Tester stands out as a highly effective tool for electrical technicians and safety inspectors. It successfully bridges the gap between comprehensive functionality (auto IΔn test, direct tΔ measurement, 3-phase support) and essential field requirements (rugged portability, intuitive interface, clear display). By enabling accurate assessment of both critical trip parameters – current and time – in a single, convenient device, it significantly enhances the efficiency and reliability of leakage protector verification, whether conducted in the controlled environment of a lab or the demanding conditions of an active job site. For professionals seeking a capable, portable, and user-friendly solution dedicated to leakage protector testing, the LBQ-II represents an excellent choice.

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/