Electric Motor Analyzer

iTIG II Model C Motor Tester and Analyzer Details

This model is typically used by customers who want advanced reporting capabilities and more automated testing than what the Model B offers. It is preferred when PI and Step Voltage tests are done regularly since these can be done automatically and without the operator present when set up properly for safe operation. Especially for DC motor tests, the C model has more options than the B model.

Automated Tests:

4-wire winding resistance – push a button and 3 four wire measurements on a 3-phase piece of equipment are done automatically with a 6 wire lead-set that plugs into the front of the motor tester.

Insulation resistance – megohm, DAR and a 10 point PI test that includes a graph can be selected and done automatically or manually.

Hipot test – 5 or 10 point step voltage tests or a 1 point hipot test can be selected and done automatically or manually. Graphs are produced.

Once the operating voltage of the motor is entered, the high frequency surge tests, with fast rising pulses per IEEE 522, are done automatically. There is no need to further adjust voltage range and sweep (or time base), it is all done by the tester. Quick Surge™ and Surge Guard™ technology find more insulation weaknesses and faults, makes the tests faster, and ensures the right number of surge pulses are applied for optimal performance.

Surge comparison tests of assembled motors can be done without turning the rotor by using the Pulse to Pulse surge tests. Surge comparisons can also be done against a master coil.

Automated tests such as Step Voltage and PI tests are particularly useful for users testing medium and high voltage equipment since these tests are time consuming and commonly used on such equipment. Automation also assures that tests are done the same way every time.

Advanced reporting:

  • TRPro report software, the advanced version, which runs on PCs and servers is included. Report information includes things like motor ID number, Job number, test description, repair stage (i.e. incoming, after cleaning, pre VPI, final, etc.), and other fields for each test such as DUT specifications. The customizable cover page includes your company information, logo, pictures etc., and automatically pulls in selected info from the report. The tester has 30GB+ data storage.
  • Online motor data such as operating phase voltages, currents etc. can be included in reports to indicate if phases are unbalanced during operation of a motor. Alternatively drop test results can be entered.
  • Graphs and tables are generated for multi-point PI and Step Voltage tests and Ramp tests. Multiple tests can be combined in one graph to see changes over time. Tables for megohm (IR) readings taken over time can be included in the report. This can be useful for before/after repair reports, as well as for maintenance and motor reliability programs.
  • Bar graphs can be generated to compare multi coil tests, armature tests, and armature resistance measurements.
  • Only tests done prints, so there are no empty graphs showing up in the report.
  • Network data transfer through Ethernet or WiFi is optional.
  • TRPro and the reports it produces, along with the iTIG II screens are available in multiple languages.

Time saver: Produce the same reports by clicking the print button on the iTIG II motor tester. Then transfer the report(s) and raw data to a server later using a Flash Drive, WiFi or Ethernet connection.

The C model can be upgraded to the fully automatic D model.


  • Outputs: 4kV, 6kV, 12kV, 12kV-H, 15kV-H (H: High energy output).
  • Four-wire high accuracy micro-Ohm (µΩ) Winding Resistance measurements instead of the standard milli-Ohm. The accuracy is 0.5% at 100µΩ, 0.2% above 1mΩ.
  • CLZ measurements: capacitance, inductance, impedance, phase angle, D and Q factors offering the user a complete measurement solution. Comes with Rotor Influence Check (RIC), tests AC squirrel cage rotors for broken rotor bars.
  • Advanced multi coil and master coil test functions. Quick and easy surge tests of multiple coils with bar graphs and/or surge wave graphs of the results. Includes the ability to add winding resistance to the results for each coil.
    DC armatures: This option can be very useful for testing DC motor armatures. It includes the ability to measure the resistance bar to bar and graph the results. The ARP-02 armature 4-wire resistance probes are required. An average resistance is automatically calculated as well as the max delta between the measurements.
    If the armature is not 100% equalized the resistance in the bars will be different. The iTIG II calculates the average and max delta for each of the two levels of resistance.
    Since the resistance bar to bar is usually less than 1mΩ, the µΩ option is usually required.
  • Ethernet output and/or wireless network connection
  • Accessories for DC motor tests. Click here for details.

To learn more about the rest of the iTIG II models, use the following links:

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