Trade.Information

Product Name: Megger BM11D (218651)

Product Description

The Megger BM11D 5-kV Insulation Resistance Testers are portable, battery-powered, high-voltage instruments that use the latest electronic design and technology. The instruments have user-friendly keypads with push-buttons to select test voltages of 500, 1000, 2500, and 5000 V dc. In addition to the standard test voltages, a variable voltage feature on the BM21 selects test voltages between 25 and 5000 V dc in 25-V steps. An integral timer automatically controls the duration test and stops the output voltage when the preset time has expired. Analog/digital displays offer practicality and precision. The analog/digital LCD on the BM11D displays from 100 kΩ to 1 TΩ in all test voltages. On the BM21, the analog/digital LCD displays readings of insulation resistance to 5 TΩ, leakage current to below 1 nA, and capacitance to 10 µF. The analog scale rapidly identifies insulation condition and monitors variable measurements. The digital display complements the analog scale by simultaneously displaying an easy-to-read, precise measurement. As a safety feature, these testers act as an ac/dc safety voltmeter, indicating the level of applied voltage before a test and monitoring discharge voltage after a test. For added safety, an alarm warns the operator if the circuit under test has not been de-energized. Both testers incorporate a guard terminal to eliminate the effects of surface leakage in the item under test, thus ensuring accurate measurements.

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