Megger BMM2000 Series User Manual

Manual is about: Insulation Multimeters

Summary of BMM2000 Series

  • Page 1

    M bmm2000 series insulation multimeters user guide safety warnings • safety warnings and precautions must be read and understood before the instrument is used. They must be observed during use. • the circuit under test must be de-energised and isolated before connections are made except for voltage ...

  • Page 2: General Description

    General description the megger bmm2000 series instruments are battery powered insulation and continuity testers, with a measurement capability from 0,01 Ω continuity to 200g Ω insulation. Offering multi-voltage facilities, the instruments take full advantage of microprocessor technology and feature ...

  • Page 3

    Live circuit warning when more than 25v (10v on 10v insulation range) is applied to the terminals in the insulation ranges, the instrument defaults to a voltmeter and gives an audible warning if a test is attempted.On all other switch positions except off/v when approx 10v is applied the default vol...

  • Page 4

    Note: there is a short delay on the first operation of ‘1000v’ range, each time the range is selected. This is to prevent accidental application of 1kv. The m Ω range features a leakage current display. Leakage current is the value of current that flows during the insulation test. To view the leakag...

  • Page 5

    Continuity testing ( Ω ) (see fig.2) the continuity tests are activated when the probes make contact of less than a few k Ω . The tests apply a constant current and measure the resulting volt drop across the circuit under test. The test operates without the need to press the test button. When the te...

  • Page 6

    Display: audible: Ω continuous bleep Ω short bleep >3k Ω no bleep resistance tests (k Ω ) this is a low voltage (5v) low current (25µa) test for sensitive electronic equipment. It operates in the same way as the continuity ranges. 1. Set the selector switch to k Ω . 2. Connect the test leads. 3. The...

  • Page 7

    Zeroing of d.C. Mv (no a.C. Mv zero facility) to zero the d.C. Mv range, short the leads together in the d.C. Mv position, wait for the reading to settle and then press the test button. Up to 9,9mv can be zeroed on the d.C. Mv range. The symbol will appear to indicate the zero has been adjusted. 1. ...

  • Page 8

    1. Set the selector switch to ma. 2. Connect the test leads. 3. Press and hold down the test button for approximately 2 seconds. 4. Select either ac or dc ma using the key. 5. After a short settling time, the reading will be displayed automatically. To view the frequency of the a.C. Ma being measure...

  • Page 9: Specification

    Specification (all quoted accuracies are at +20°c.) insulation ranges nominal test voltage (d.C.): bmm2080: 50v, 100v, 250v, 500v, 1000v bmm2000: 250v, 500v, 1000v bmm2000esd: 10v, 100v, 500v test voltage accuracy: 1000v, 500v, 250v, 100v, 50v, +15% maximum on open circuit. 10v, ±10% maximum on open...

  • Page 10

    Zero offset at probe tips: 0,10 Ω typical lead resistance zeroing: up to 9,99 Ω noise rejection: 1v rms 50/60hz buzzer: operates at less than 5 Ω (approx). Resistance measuring range: 0,01k Ω to 9,99m Ω (0 to 100m Ω on analogue scale) accuracy: ±3% ± 2digits open circuit voltage: 5v ±1v short circui...

  • Page 11

    Then calculate the measurement range. This is the range of measurement over which the error in service is less than 30% of the reading. Digital instruments are affected by the number of digits error – for example a value 0,10 Ω measured with the continuity range may give a display in the range 0,07 ...

  • Page 12

    Complies with the following parts of en61557, electrical safety in low voltage systems up to 1000v a.C. And 1500v d.C. – equipment for testing, measuring or monitoring of protective measures:- part 1 – general requirements part 2 – insulation resistance part 4 – resistance of earth connection and eq...

  • Page 13

    Repair and warranty the instrument circuit contains static sensitive devices, and care must be taken in handling the printed circuit board. If the protection of an instrument has been impaired it should not be used, and be sent for repair by suitably trained and qualified personnel. The protection i...

  • Page 14

    Megger limited archcliffe road dover kent ct17 9en tel: +44 (0) 1304 502100 england fax: +44 (0) 1304 207342 megger 4271 bronze way dallas tel: +1 (800) 723-2861 (u.S.A. Only) tx 75237-1017 tel: +1 (214) 330-3203 (international) u.S.A. Fax: +1 (214) 337-3038 megger valley forge corporate center 2621...