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參數(shù)資料
| 型號： | BMM503 |
| 英文描述： | COMBINATION TESTER |
| 中文描述： | 組合測試儀 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大小： | 53K |
| 代理商： | BMM503 |
Electrical Contractors and Servicing
The BMM500 series insulation continuity testers has a wide variety of applications 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 61557. In addition the range meets the
requirements of BSEN 61010-1 for safe connection to a 440V Installation Category III supply (300V Phase to Earth).
The BMM500 series is designed to provide the electrical contractor with a highly functional tool for
testing/commissioning fixed installations. 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 1000V 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 500V. The 250V insulation range is necessary where low voltage circuits supplied by an
isolating transformer are tested whilst the 1000V range is used for circuits with a nominal voltage exceeding 500V
and below 1000V.
The instruments have a 200mA 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.
To aid operation in awkward situations where the instrument cannot be held in one hand the MEGGER SP1 switched
probe is available to facilitate control of the instrument test button directly from the probe.
In addition to the electrical features above, the rugged design of the BMM500 range ensures that they can withstand
the everyday handling, transportation and storage with other tools in the contractors toolbag and the BMM500 is
supplied with a three year manufacturer’s warranty.
Servicing
The BMM500 series is ideally suited to the service industry since they offer a comprehensive range of features 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 etc.
Voltage, and Resistance ranges 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 probe range enables the BMM500 series to interface to a vast range of probes for measurement of the
various parameters such as temperature, which is useful for verifying the correct operation of items such as oven
thermostats, or the measurement of heated air temperature and humidity to be made.
Continuity Testing
A hands free 200mA continuity test
range meeting the requirements of UK
and European legislation is also
included to ensure the accurate
measurement
of
conductors
and
supplementary bonding.
circuit
primary
final
and
Test Lead Zeroing
The continuity range has a facility to
automatically remove the resistance of
the test leads from the measured
value, a task that would normally have
to be done manually. This ensures that
the measurement displayed is due
entirely to the conductors under test.
The insulation and continuity ranges
are augmented by a number of
additional measurement ranges such
as autoranging voltage measurement
up to 600V ac/dc, and Kilohms
resistance measurement enabling
component diagnostic measurements
during servicing. Current
measured by connection of an external
mV output clamp such as the optional
MEGGER MCC10
may
be
Pouch
The BMM500 series has been
designed to withstand the day to day
handling and storage of a tool bag
environment and also comes complete
with durable carry pouch with provision
for storage of all leads.
Additional Servicing Measurements
The BMM500 series supports the
connection of virtually any mV probe.
Such devices extend the range of
possible
measurements
endlessly including such items as
temperature
probes,
indicators
and
clampmeters such as used in Heating
and ventilation (HVAC), and Servicing.
almost
air
speed
current
high
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