Deenergized Motor Circuit Analysis (MCA) Testing Instrument

The ALL-TEST PRO 7™ PROFESSIONAL uses our proven, patented technology to look beyond vibration, temperature, and ultrasound test methods – giving you instant answers on your motor’s health. It represents our 7th generation in product innovation that ensures the reliability of motors in the field and helps to maximize the productivity of maintenance teams everywhere.

Managers and engineers who are responsible for the reliability of motors will appreciate the enhancements we added to the ALL-TEST PRO 7™ PROFESSIONAL because it empowers their technicians to efficiently and accurately evaluate motors whether they are in the field or on the shop floor. This helps improve motor reliability, increase technician and asset productivity, and reduce energy consumption.

Patented Dynamic Stator and Rotor Signatures™

Evaluate the condition of the stator and squirrel-cage rotor in a single test. This instrument is perfect for testing new and repaired motors prior to acceptance.

Patented Test Value Static™ (TVS™)

Test Value Static™ is a sum calculated from the 3-phase MCA static test and is used as a reference value for the motor. Common types of faults in the rotor and stator windings will change TVS.
Obtain Return On Investment

Finding just one fault using the AT7™ PROFESSIONAL can save your organization countless hours of downtime and provide thousands of dollars in savings. Maximize your investment by:

  • Testing newly installed motors to ensure proper installation and prevent startup failure.
  • Testing motor spares to ensure they are in good condition and ready for service.
  • Troubleshooting motors that have quit running by testing from the MCC or directly at the motor.
  • Implementing it into a PdM testing program to detect developing faults before they cause catastrophic motor system failures. Finding a motor fault before it breaks can save you countless hours of downtime and can provide thousands of dollars in savings.

Test all types of electrical motors (any voltage) including AC (induction and synchronous) and DC (series, shunt, and compound), as well as transformers, generators, traction motors, machine tool servo, single-phase motors and other coil-based devices.
The electrical health of all motor components is evaluated, including, but not limited to:

  • Induction windings
  • Rotor
  • DC field windings and armature
  • Field and rotor coils in synchronous motors
  • Primary and secondary windings in transformers
  • All associated connections and cables

  • On-screen step-by-step testing instructions
  • Tests take less than 3 minutes
  • Tests can be performed from over 1000′ away
  • Detects faults at the earliest stages before motor failure
  • A timing tone that supports proper rotation speed during deenergized dynamic test
  • Route based testing and trending
  • Boot loader function facilitates firmware updates at the customer’s site


Product Brochures

Product Spec Sheets

Product Case Studies


Not currently available


AT7™ PROFESSIONAL Software Options

Our MCA PRO™ Software comes standard with the AT7™ PROFESSIONAL.

Some features of the software include:

  • Compatibility with single and 3-phase AC motors; DC motors including series, shunt, compound wound; transformers
  • Individual coil testing, allowing you to test and compare up to 4 coils
  • Create unlimited routes and maintenance schedules for predictive maintenance and conditioning monitoring
  • Routes that maintain up to 100 pieces of equipment

MCA PRO™ Enterprise Software

Our MCA PRO™ Enterprise Software has all the same features and functions of our MCA PRO™ but with the following added features:

  • Multiple user accessibility – 2, 5, 10 & 25 user licenses available
  • Enterprise software can be installed onto as many client computers as needed
  • Multiple sites can share databases.


Included Accessories

AT7P™ Battery Charger
Battery Charger
AT7P™ Kelvin-Test-Leads
Kelvin Test Lead Set (including yellow ground lead)
AT7P™ Hard Case (holds the instrument, leads, & charger)
Hard Case
AT7P™ USB-Cable
USB Cable
AT7P™ Strap Wrench
Strap Wrench

Optional Accessories

AT7P™ Optional Kelvin Test Lead Set (including yellow ground lead)
Optional Kelvin Test Leads Set (including yellow ground lead)
AT7P™ Replacement Battery Pack
Replacement Battery Pack
AT7P™ 3 Meter Custom Test Leads Set
3 Meter Custom Test Leads Set (including yellow ground lead)
AT7P™ Training Motor
Training Motor
AT7P™ Universal Soft Case Clear Face
Universal Soft Case Clear Face