M4100 4th Gen Insulation Analyzer Series

Diagnostic Test System for Power Apparatus Condition Assessment

The M4100 is the world’s premier power apparatus and insulation test instrument. Its unique combination of test capabilities and artificial intelligence analysis software makes it the power industry’s most trusted Power Factor/Tan-Delta instrument. These instruments are used around the globe thanks to their comprehensive testing options, safety features and measurement accuracy.


What’s the 4th Generation?

Doble continually updates and adds features to our equipment based on your testing needs. The latest features of the M4100 4thGeneration test set include:

  • Rugged Power Unit Module
  • High Accuracy Measurement Module
  • Doble Universal Controller interoperability
  • High Reliability Interface Module
  • Expanded DTA6 Software system & FRANK Artificial Intelligence Engine
  • GFIC Class B and RCBO Compatibility
  • Safety firmware and sensing system


M4100 Diagnostic Capabilities

  • 12 kV Power Factor/Tan-Delta capacitance testing to assess insulation condition & dielectric loss
  • High stress and high accuracy 10 kV TTR with the dobleTTR Capacitor
  • Winding Leakage Reactance testing with the M4110 to detect winding deformation or damage
  • 10 kV Single-Phase Excitation Current testing to detect degraded turn-to-turn insulation damage and magnetic circuit anomalies


M4100 4th Gen Testing Features

Quick and Safe Testing
Safety is our priority - from safety switches, power strobes and ground earth relay interlocks. Our software firmware system is now even faster and more precise in sensing abnormal current, temperature and voltage operation before a user would notice. Testers can use safety switches to manually cut power. The system conducts a continuous temperature analysis and adjusts set-points based on the changing test environment.

The power conditioning system to also meet the requirements for Class B type GFIC and RCBO systems.

Test with the DUC
The Doble Universal Controller (DUC) is Doble’s new industrial test tablet, designed in partnership with Xplore Technologies for the harsh electrical testing environment. The DUC runs all our instruments and you can configure its apps to your own MS-Windows based software.

Smarter testing with DTA6 & FRANK
All M4100s come with DTA6 Basic and include FRANK, the First Response Analytics Knowledgebase, an artificial intelligence engine that not only looks at limits, it thinks about the results. 

We’ve taught it about individual apparatus service advisories millions of data points for comparison. No matter where you are in the world, you have FRANK helping you instantly analyse your test results, providing clear recommendations and explanations.

Measurement Accuracy & Stability
Doble’s power factor/tan-delta accuracies are now
typically less than 0.005%, which is the best in the industry. We can achieve this under all conditions. Our specifications are also reported under test lead usage, not just instrument terminals.

Information sheets: