Model: MTR105 | Order No: 1010-361
Features the abilities of IR test instruments with the addition of DLRO four-wire Kelvin low resistance, inductance, and capacitance testing. Additionally, this instrument enables temperature measurement and compensation, motor direction of rotation, and supply phase rotation tests.
With a robust handheld design, this rotating machine tester comes equipped with the test abilities of proven IR test instruments adding DLRO four-wire Kelvin low resistance, inductance, and capacitance tests to give a versatile motor tester.
Additionally this instrument incorporates temperature measurement and compensation (for IR tests), motor direction of rotation plus supply phase rotation tests.
Designed to be exceptionally safe to use. The fast detecting circuitry reduces the likelihood of damage to the instrument if accidentally connected to live circuits or across phases.
Insulation Resistance Tests
Continuity (Resistance) Tets
DLRO Four Wire Kelvin Low Resistance
Motor Direction of Test
Tests the direction of rotation of the motor under test and displays the phase sequence on screen.
The connected motor is rotated in one direction and the display shows sequence of the phases of rotation. The motor is next rotated in the opposite direction, the phases are checked again and shown on the display.
Inductance, Capacitance and Resistance Meter (LCR)
Auto inductive, capacitive and resistive test. Frequency selectable to 120 Hz or 1000 Hz. In AUTO mode, the MTR105 automatically determines if the main element of the load is inductive, capacitive or resistive and displays the result on screen.
Selectable inductance and capacitance test.
The Guard Terminal (G) is a third terminal on the connection panel. Connection of the guard terminal, on certain applications, provides a return path for parallel leakage currents, which could otherwise create significant errors in the insulation measurement. This is especially so for surface contamination of equipment or cables.
|Volts||50 to 1000 V|
|Accuracy||10 GΩ ±2% ±2 digits ±4.0% per GΩ
20 GΩ ±2% ±2 digits ±2.0% per GΩ
50 GΩ ±2% ±2 digits ±0.8% per GΩ
100 GΩ ±2% ±2 digits ±0.4% per GΩ
200 GΩ ±2% ±2 digits ±0.2% per GΩ
|Polarization Index (PI)||10/1 minute ratio|
|Dielectric Absorption Ratio (DAR)||User configurable 15 or 30 s t1 start time with t2 fixed at 60 s|
|Guard Terminal Performance||<5% error at 500 kΩ parallel circuit resistance with 100 MΩ load|
|Short Circuit/Charge Current||2 mA +0% -50% (IEC61557-2)|
|Terminal Voltage Accuracy||-0% +2% ±2 V|
|Test Current||1 mA at min. pass value of insulation to a max. of 2 mA|
|Operation Range||0.10 MΩ to 1.0 GΩ (IEC61557-2)|
|Leakage Current Display||0.1 uA resolution 10% (±3 digits)|
|Voltage Display||±3% ±2 digits ±0.5% of rated voltage|
Click on a category to view a selection of compatible accessories with the Megger MTR105 Rotating Machine Tester.