Megger MTR105, Руководство пользователя

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2. Introduction
2.1 Product Description
This user guide details the operational and functional details of the Megger MTR105 Rotating Machine Tester. Please
read this user guide fully before attempting to use the MTR105. The MTR105 instrument is designed to perform a
number tests that are typical for rotating machines.
These tests include
„
Insulation resistance,
„ Voltage measurement,
„
Continuity,
„ DLRO, Digital Low Resistance Ohmmeter - 4 wire kelvin mΩ,
„
Motor direction of rotation test,
„ Capacitance,
„
Inductance
„ Temperature.
The MTR105 is powered by six AA alkaline primary cells. As an optional accessory, rechargeable NiMH AA cells can
be used with an external power supply and adaptor to charge the batteries whilst in the instrument. Lithium primary
(not Lithium Ion) cells can also be used.
For personal safety and to get the maximum benefit from this instrument, make sure that the safety warnings and
instructions are read and understood before the instrument is used, see
Refer to 1. Safety Warnings on page 2.
This user guide must be thoroughly read before attempting to operate the MTR105.
NOTE: This manual includes instructions for all MTR105 variants. Some facilities may not be available on your model
of this equipment.
The MTR105 takes the test abilities of Megger’s proven MIT400 test instruments adding; DLRO four wire tests,
inductance and capacitance to provide a versatile motor tester, all packaged in a robust hand held instrument, which
up to now has simply not been available.
In addition the MTR105 also incorporates temperature measurement and compensation (for IR tests), direction of
rotation plus supply phase rotation tests.
All these new test abilities go together to make the MTR105 a real world, versatile, hand held test instrument for
rotating machinery.
The MTR105 also comes in an over-moulded case, providing increased protection, robustness and achieving an IP54
rating against moisture and dust ingress.
Refer to the image at Refer to 2.5 Instrument Controls on page 7 for detail of the MTR105 layout.
For the safety of all personnel and to get the maximum benefit from this instrument, ensure the safety instructions of
Refer to 1. Safety Warnings on page 2 are read and thoroughly understood before the MTR105 is used.
Tests and connections detailed in this user guide are not exhaustive. Refer to the booklet Guide to Motor Testing
(published by Megger) for further information about motor testing.
Introduction
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