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Motor Testing

MD III™

MD III™

  • ATP Part Number: 45065
  • Motor Testing Modes: Combines Motor Circuit Analysis™ (MCA™) and Electrical Signature Analysis (ESA)
  • Compatibility: Tests virtually all motor types—AC, DC, synchronous, induction, and more
  • Diagnostic Coverage: Power quality, harmonic distortion, insulation, stator, rotor, air gap, connections, alignment, bearings, and driven load
  • Automatic Diagnosis: Auto-diagnosis feature provides immediate motor health status
  • Trend and Route-Based Testing: Designed for predictive maintenance programs
  • Analysis Capabilities: Detects early-stage winding faults, rotor issues, incoming power problems, and mechanical faults
  • Reporting: Generates automatic diagnostic reports for electrical and mechanical system health
  • Display & Interface: Step-by-step guided instructions on both handheld testers
  • Durability: Housed in a rugged hard-sided carrying case
  • Power Supply: Includes AC chargers (115V/230V)
  • Portability: Lightweight, portable testing assembly for in-field or facility use
  • Warranty: One-year warranty standard, with optional extension available
  • Included Devices: ALL-TEST PRO 7™ PROFESSIONAL and ALL-TEST PRO ON-LINE III™
  • Instructional Materials: DVD-based instructional manual included

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SKU: MD III™
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Product Information

MD III™

The ALL-TEST PRO MD III™ is an advanced motor diagnostic assembly that integrates two leading technologies—Motor Circuit Analysis™ (MCA™) and Electrical Signature Analysis (ESA)—into one powerful, portable solution. Built for maintenance teams that need fast, accurate insights into the electrical and mechanical health of their motor-driven systems, the MD III™ allows for both offline and online motor testing to detect faults before they become failures.

This system includes the ALL-TEST PRO 7™ PROFESSIONAL for offline testing and the ALL-TEST PRO ON-LINE III™ for energized analysis, giving users comprehensive visibility into rotor, stator, insulation, alignment, power quality, and more. With automatic diagnostics, step-by-step instructions, and predictive trend analysis, the MD III™ enables technicians to conduct route-based testing and receive immediate motor health status on-site—reducing downtime, repair costs, and unplanned outages.

All components come packaged in a rugged, hard-shell case for field portability and long-term use. The assembly also includes AC chargers, a DVD instructional manual, and a one-year warranty (with optional extended coverage).

All-in-One Motor Testing for Predictive Maintenance

Combining both MCA™ and ESA technologies, the MD III™ allows technicians to perform both de-energized and energized testing from a single kit. It’s ideal for predictive maintenance programs where early fault detection leads to cost savings and operational efficiency.

Automatic Diagnostics and Trend Analysis

The system automatically evaluates insulation, winding condition, rotor health, and power quality. Its auto-diagnosis function delivers real-time health reports, while trending and route-based testing make it easy to compare motor performance over time.

Covers All Major Motor Fault Categories

From mechanical issues like bearing wear and misalignment to electrical faults such as insulation breakdown and harmonic distortion, the MD III™ identifies problems across the entire motor system—down to the driven load.

Rugged, Portable, and Technician-Friendly

Packaged in a durable carrying case, the MD III™ is designed for field and in-plant use. With easy-to-follow instructions, lightweight design, and charger support for 115/230V, it delivers convenience and performance in one professional-grade solution.

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Product Specifications and Downloads

Documentation

All-Test Pro Comparison Chart

ATP Product Comparision Chart

Browse our selection of motor circuit analysis products with key specs and pricing to help you find the perfect fit for your needs.

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Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

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