Rotating Machine Tester

All-in-one motor testing from insulation to rotation checks. MTR105X available with Bluetooth® connectivity for CertSuite data streaming and reporting.

The MTR105 is a dedicated rotating machine tester that brings Megger’s proven insulation resistance (IR) expertise together with advanced low resistance, capacitance, inductance, and rotation testing in one handheld instrument. It delivers a holistic view of motor health, enabling you to assess windings, connections, and overall condition with precision and confidence. Designed for production, service, and maintenance teams, the MTR105 supports fast, reliable decisions across your asset lifecycle.

Comprehensive testing capabilities

Built on a unified test architecture, the MTR105 consolidates multiple core measurements:

• Insulation resistance with PI, DAR, timed tests, and temperature compensation for consistent, comparable results.
• DLRO four‑wire Kelvin low resistance testing for accurate measurement of joints, connections, and windings.
• Inductance and capacitance to characterise coils and diagnose imbalance or deterioration.
• Motor direction of rotation and three‑phase supply rotation to verify correct installation before energisation.

This integrated approach reduces set‑up time, cuts the number of tools you carry, and streamlines workflows in the field or workshop.

MTR105 & MTR105X Datasheet

Static Motor Analyser

• Comprehensive range of tests in one instrument
• Configurable to meet needs and price point
• 4 kV to 12 kV for wide spectrum of motors and coils
• Compatible with the Baker PPX Power Packs for testing up to 40 kV
• High and low voltage tests to characterize circuits and insulation
• Coil mode for rapid testing and data storage

In an industrial setting, the consequential cost of failure or unplanned downtime of critical rotating machinery can be significant. The Baker DX series can apply a wide set of off-line electrical tests to assess the condition of motors and coils.