How insulation Resistance Tester Works
The Megger BM5200 is a versatile insulation tester designed for performing DC insulation tests at various voltage levels, including 250 V, 500 V, 1000 V, 2500 V, and 5000 V. With an impressive insulation resistance measuring range from 100 kΩ to 1000 GΩ, it is suitable for testing a wide variety of electrical systems and components. The BM5200 ensures safe testing by automatically discharging capacitive circuits under test, preventing potential hazards. Additionally, it features a decaying voltage display, which allows users to monitor the voltage reduction over time during testing. This helps assess the insulation's condition and performance accurately. The device is ideal for use in a range of industries, including electrical maintenance, installation, and equipment testing, offering reliable and accurate results for insulation resistance and circuit integrity. Its robust functionality and user-friendly interface make it an essential tool for professionals working with electrical systems.


Reliable insulation resistance testing is crucial for maintaining the safety, efficiency, and longevity of electrical systems. Instruments like the BM5200 make it possible to detect insulation weaknesses before they lead to equipment failure or downtime. By offering multiple test voltages and a wide measurement range, it accommodates a variety of applications, from routine maintenance to in-depth diagnostic evaluations. Safety features like automatic circuit discharge and real-time voltage decay monitoring add an extra layer of protection for both equipment and operators. Regular use of high-precision testers not only ensures compliance with industry standards but also strengthens preventive maintenance programs, ultimately extending the service life of critical electrical assets.