Deenergized Motor Circuit Analysis™(MCA) Testing Instrument

The ALL-TEST PRO 34™ 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 the 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 34™ 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™

Used to evaluate the condition of the stator and squirrel-cage rotor in a single test. Perfect for testing new and repaired motors prior to acceptance.

Patented Test Value Static™ (TVS™)

Test Value Static (TVS) 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.

Finding just one fault using the AT34™ 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.

Tests AC induction, squirrel-cage rotor motors <1000V. The electrical health of all motor components is evaluated, including induction windings and rotor, associated connections and cables.
The electrical health of all motor components is evaluated, including, but not limited to:

  • Induction windings
  • Rotor
  • 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
  • Boot loader function facilitates firmware updates at the customer’s site
    *Note: Route feature will only work with Enterprise Software.


Product Brochures

Product Spec Sheets

Product Case Studies


Not currently available


AT34™ Software Options

MCA Basic™ Software

  • Comes standard with the AT34™.
  • Used with 3-phase AC induction squirrel-cage rotor motors <1000V.


Included Accessories

AT34™ Strap Wrench
Strap Wrench
AT34™ Battery Charger
Battery Charger
AT34™ Kelvin-Test-Leads
Kelvin Test Leads Set (including yellow ground lead)
AT34™ Hard Case (holds the instrument, leads, & charger)
Hard Case
AT34™ USB-Cable
USB Cable

Optional Accessories

AT34™ Optional Kelvin Test Lead Set (including yellow ground lead)
Optional Kelvin Test Leads Set (including yellow ground lead)
AT34™ Replacement Battery Pack
Replacement Battery Pack
AT34™ 3 Meter Custom Test Leads Set
3 Meter Custom Test Leads Set (including yellow ground lead)
AT34™ Training Motor
Training Motor
AT34™ Universal Soft Case Clear Face
Universal Soft Case Clear Face