![]() A flashing LED, and flashing high voltage symbols on the LCD remind the user that hazardous voltage is present. Similarly, during a test the test leads should not be removed, and the item under test should not be touched. The test leads should not be disconnected until the item has been discharged fully. At the end of a test, capacitive loads are discharged automatically and the decaying voltage is displayed as the value returns to zero. ![]() ![]() An integral timer is started automatically on commencement of the test, and displays elapsed minutes and seconds since the start of the test. The instrument hase test voltage positions of 500 V, 21 V, 2500 V and 5000 V. The BM11D has a digital full scale of 500 Gohm The instruments are microprocessor controlled and feature a large, clear LCD combining digital and analogue readings of insulation resistance. insulation testers with resistance measurement capabilities to around 1 Tohm. The BM11D is a compact, battery powered, high voltage d.c. It is battery-powered, housed in a rugged case and has a large, simple white-on-black scale. The traditional BM11 instrument became the industry-standard 5 kV tester. Leakage current to 0,01 nA and can display capacitance at the end of a test to 10 ♟.The Megger BM11D series of 5 kV Insulation Testers provides a choice of features to suit all applications and budgets. These top of the range units also allow measurement of resistance to 5 TO, Pre-set standard test voltages at 500 V, 1000 V, 2500 V and 5000 V are supplemented on the BM21 and BM25 units with a variable test voltage in 25 V steps. All testers incorporate a guard terminal to allow surface leakage to be removed. They are powered by a built-in rechargeable lead-acid battery which can be charged directly from any supply fromĩ5 V to 265 V. A built-in timer makes both spot tests and PI testing easier to carry out. These instruments show results and test options on a large, clear analogue/digital scale for both practicality and precision. The series has been extended with three analogue/digital instruments the BM11D, BM21 and BM25. ![]() The Megger® BM11 series of 5 kV Insulation Testers provides a choice of features to suit all applications and budgets. Insulation resistance measurement to 15 TO, Mains and battery powered testing, Supplied ready for use with FREE calibration certificate MEGGER BM11D Insulation Resistance Tester 5 kV ![]()
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