BY2671 Digital Insulation Tester: Performance and Application

For electrical technicians, reliable insulation resistance measurement is critical for safety and equipment integrity. The BY2671 Digital Insulation Resistance Tester is a robust tool designed for this purpose, offering significant advantages over older analog megohmmeters and even some contemporary digital models.

Key Advantages in Field Applications

Compared to traditional hand-cranked megohmmeters, the BY2671 eliminates operator-dependent variability in voltage output. Its stable, battery-powered output voltages (500V, 1000V, 2500V) ensure consistent and repeatable tests. Furthermore, while analog testers struggle with measuring capacitive loads—where the voltage can sag significantly—the BY2671's high short-circuit current (>1.6mA) allows it to charge capacitive objects rapidly and maintain the rated test voltage. This is a decisive advantage when testing long cables or large motors.

A notable technical feature is its use of a scaling method for low-resistance measurements. Unlike simpler testers that can be adversely affected by voltage drop across the test sample, this method ensures accuracy even at lower resistance values. This precision, with a relative error of ≤±5%±1d, makes it suitable for precise diagnostics and trend analysis.

Technical Comparison and Robust Design

When compared to basic digital insulation testers, the BY2671 stands out with its superior anti-interference capabilities. The integrated equipotential protection ring and fourth-order active low-pass filter actively shield the measurement from external power frequency noise and strong electromagnetic fields. This makes it exceptionally reliable in electrically noisy industrial environments, such as substations or manufacturing plants, where lesser instruments might provide unstable readings.

Its automatic ranging function streamlines the workflow. Technicians no longer need to manually switch scales, reducing both measurement time and the potential for error. The LCD clearly displays the reading directly in MΩ, with a resolution that adapts from 0.01MΩ to 10.0MΩ across its wide 0~19999MΩ range.

Conclusion

The BY2671 Digital Insulation Resistance Tester represents a significant step forward from legacy equipment. Its combination of high output power, strong anti-interference, high short-circuit current, and automated features provides technicians with a fast, accurate, and reliable tool for demanding electrical testing applications. It effectively bridges the gap between the basic functionality of simple testers and the high cost of premium laboratory-grade instruments, offering professional-grade performance in a field-ready device.

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/