Rotating machine tester

  • Full colour graphic display
  • Three-phase insulation resistance
  • Temperature correction for insulation resistance
  • Guard terminal
  • DLRO four-wire Kelvin
  • Continuity and diode test
  • Motor direction of rotation
  • Capacitance and inductance
  • CAT III 600 V up to 3000 m
  • Environmental protection to IP54

The MTR105 rotating machine tester is a dedicated static motor tester with Megger’s tried and trusted suite of insulation resistance tests (IR), plus all the great traditional features and reliability of Megger’s testers.

The MTR105 takes the test abilities of Megger’s proven IR test instruments adding DLRO four wire Kelvin low resistance test, inductance, and capacitance tests to provide a versatile motor tester, all packaged in a robust handheld instrument. Additionally, the MTR105 incorporates temperature measurement and compensation (for IR tests), motor direction of rotation, and supply phase rotation tests.

What's more, the MTR105 has been 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.

Learn more about the MTR105

Technical Documents
Technical guide
Guide to Low Voltage Motor Testing
Technical guide
Less is more for electrical test instruments
MTR105 Firmware

MTR105 Firmware Update

The MTR105 will automatically update when the instrument is turned on if a firmware update is available.

Installation instructions:

1. Extract the zip archive to the root folder of a USB pen drive.

2. Plug the USB pen drive in to the USB slot at the top of the instrument.

3. The boot loader screen will be displayed when the instrument starts up.

4. Press [OK] to upgrade the firmware or [TEST] to cancel.

5. The update will progress through various stages.

6. When complete, remove the USB.

7. Restart the MTR (turn off and on).

8. The firmware update screen will display while the update is in progress.

9. The instrument will reboot after the update is complete.

 For more detailed instructions, please see your user guide.

MTR105 Firmware

GUI Version:    01.02.03
Measurement Version:    1.0.5
840.4 KB | 16/02/23