Megger BMM2000 Series Bedienungsanleitung PDF herunterladen (Seite 2)

the range of possible measurements almost endlessly including such items as temperature probes, airspeed indicators and

high current clampmeters thus extending the scope of the BMM2000 series into key industries such as Heating and

ventilation (HVAC), and Servicing.

ELECTRICAL CONTRACTORS

The BMM2000 series insulation multimeters has a wide variety of applications and is ideal for testing electrical

installations to both the British and the International Wiring Regulations. Each instrument conforms to the requirements

of Table 71A in BS7671 and to VDE 0413 parts 1 and 4, HD 384, IEC 364 and EN 5117. In addition the range meets the

requirements of BSEN 61010-1 for safe connection to a 440V Installation Category III supply.

The BMM2000 series Insulation Multimeters are designed to provide the electrical contractor with a highly functional tool

for testing/commissioning fixed installations.

Where certificates of test are required data may be manually entered onto the forms or manually entered into certification

software such as PowerSuite for Windows™ or NICEone to create a professional certificates with the tracability necessary

for safety critical applications. The inclusion of a power saving backlight ensures that the display can be clearly seen even

where the distribution board is located in a dark cupboard but without ruining battery life.

Three insulation test voltages of 250, 500 and 1000 V are provided to ensure that the correct test voltage for the

installation under test is always available. The 500 V range is suitable for the majority of testing on circuits with a

nominal voltage up to 500 V. The 250 V insulation range is necessary where low voltage circuits supplied by an isolating

transformer are tested whilst the 1000 V range is used for circuits with a nominal voltage exceeding 500 V and below

1000 V. An additional leakage facility allows any insulation measurement to be displayed in terms of microampere

leakage currents.

The instruments have a 200 mA continuity range which is ideal for testing the continuity of ring final circuit conductors,

primary bonding of services and of supplementary bonding conductors. The zero offset adjustment allows the resistance

of the test leads to be ignored so the measurement shown is due to the conductors under test only.

The feature set of the BMM2000 series extends to include measurement ranges for voltage, current, resistance enabling

one instrument to be used where normally a separate multimeter would be called for.

To aid operation in awkward situations where the instrument cannot be held in one hand the Megger SP1 switched

probe is included to facilitate control of the instrument test button directly from the probe.

In addition to the electrical features above the rugged design of the BMM2000 range ensures that they can withstand the

everyday handling, transportation and storage with other tools in the contractors toolbag and is supplied with a three

year manufacturer’s warranty.

SERVICING AND HVAC

The BMM2000 series are ideal tools for the service industry since they offer a comprehensive range of features addressing

the requirements of the service engineer in a single unit.

The insulation ranges are useful for establishing the integrity of the internal parts such as motors, timers and transformers

whilst the continuity range can verify the correct earth bonding of the case metalwork and checking the operation of

switches etc.

The multimeter functions of Voltage, Current and Resistance find a multitude of uses in the measurement of component

parts within consumer appliances such as the verification of correct mains supplies timer switching characteristics and

component level measurements on control PCB’s.

The unique mV transducer input ranges enable the BMM2000 series to interface to a vast range of transducers for

measurement of the various parameters necessary during servicing and in the commissioning and verification of HVAC

systems. Temperature measurement is one of the most important additions for the service industry enabling the correct

operation of items such as oven thermostats or the measurement of heated air temperature and humidity to be made.

To further assist in servicing situations higher currents, (up to 10 A a.c.), may be measured by connecting the optional

Megger MCC10 current clamp. This enables measurements of appliance element/motor currents etc to be made quickly

and safety without interrupting the conductors.

TELECOMMUNICATIONS

In addition to the standard installation testing functions the BMM2080 includes additional 50 V and 100 V insulation

testing facilities and a 10 uF capacitance range. The low voltage insulation tests are necessary for the testing of delicate

components and equipment found in telecom systems which would be damaged by higher voltages.

The instruments are designed to perform tests on systems with up to 25 V of electrical interference or crosstalk without

the accuracy or reliability of results being effected and with no damage to the instrument.

BMM2000 SERIES

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