Energized Electrical Signature Analysis (ESA) Diagnostic Instrument

Starting at $28,762.00 USD

The All-Test Pro On-Line III (ATPOL III) power quality and electric motor analyzer is the most complete electrical signature and power analysis instrument for AC/DC motors, generators, and transformers.

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  • Handheld & Lightweight (~1lb)
  • Fast – 60 second tests
  • Testing distance – virtually unlimited between motor and load (including submersible equipment)
  • Early alert – detects faults at earliest stages before motor failure
  • User safety – Bluetooth® wireless communication enables remote operation including data collection
  • Quick asset management – Test Plan Manager allows for route-based testing and trending

Testing Capabilities

Test all types of electrical motors of any voltage, including AC (induction and synchronous) and DC (series, shunt, and compound), as well as transformers, generators, traction motors, and machine tool servo motors.


ALL-SAFE PRO® – Available as 5 amp, 100 amp, or 1000 amp

Electric motor testing equipment by ALL-TEST Pro.


Test your motor quickly and easily with the most complete energized motor and power diagnostic instrument, all in a handheld, lightweight package.

The ATPOL III™ electrical signature analysis (ESA) tool delivers superior AC diagnostics for the evaluation of your motor health, including electrical and mechanical rotor health, stator health, air gap, and the entire driven load, whether geared, bladed, or belted.

Accompanying ESA™ software analyzes and reports on the electrical and mechanical conditions of the entire motor or generator system.

This power quality and electric motor analyzer is the most complete electrical signature and power analysis instrument for AC/DC motors, generators, and transformers.


The ATPOL III™ offers many software and data analysis advantages compared to the competition, including key determinations that are made automatically, including:

  • Line frequency, running speed and pole pass frequency
  • Software automatically looks for patterns related to stator slot and rotor bar fault frequencies
  • Automatic detection of static or dynamic eccentricity faults
  • Evaluation of incoming power, including harmonics
  • Calculates efficiency for AC induction & DC motors
  • Power analysis includes sag/swell and transient detection, plus energy consumption data logging
Electric motor load testing equipment by ALL-TEST Pro.

Complete Motor Health Assessment

The electrical health of all motor components is evaluated, including, but not limited to induction windings, rotors, DC field windings and armature, field and rotor coils in synchronous motors, primary and secondary windings in transformers, and all associated connections and cables.

Safe Testing

The ATPOL III™ connection accessory offers significant advantages over conventional methods for collecting energized testing data while the motor is under load. The quick connection allows for testing without opening electrical panels, eliminating the need to suit up in bulky protection gear. Safety, ease of use, accuracy, and superior diagnostic results make the ATPOL III™ the best accessory for ESA motor testing.

The Highest Standards

The ATPOL III™ has passed the highest standards for CAT III 1000V. The CAT IV 600V rating signifies it is suitable for testing at the service entrance (≤ 600V).

Obtain Optimal ROI

Finding a motor fault before it breaks can save your organization countless hours of downtime and thousands of dollars in savings. The ATPOL III™ is actually two instruments in one – a complete Power Quality Analyzer (PQA) and a complete Electrical Signature Analyzer (ESA).

PQA mode allows:

  • Energy data logging
  • Harmonic analysis
  • Voltage and current charting
  • Viewing waveforms
  • Waveform sags and swells, transient, and event captures


ESA mode evaluates:

  • Incoming power
  • Control circuit
  • Motor
  • Driven load
The ATPOL III is an electric motor condition monitoring device by ALL-TEST Pro that uses electrical signature analysis.

Track, trend, and report with ESA SOFTWARE

Track, trend, and report on the condition of your plant’s motor assets. ALL-TEST PRO On-Line III™ ESA Software (for PC) enables you to manage your plant’s motors efficiently and easily.

Used in conjunction with the ALL-TEST PRO On-Line III™ to analyze and report both the electrical and mechanical condition of the entire motor or generator system, ESA software delivers superior AC diagnostics for the evaluation of the health of the stator (electrically and mechanically), rotor, air gap, and evaluates the entire driven load (belted, geared, bladed, etc).

In addition, ESA software provides excellent diagnostics for DC motors, generators and transformers.

Display Calculation Time
Calculations displayed on preventive maintenance tools.

Stay Safe with the ALL-SAFE PRO®

Collecting energized testing data while a motor is under load requires an innovative solution to maintain operator safety.

The ALL-SAFE PRO® is a permanently installed connection accessory for the ATPOL III™ energized testing instrument. With this electric motor connection box, the ATPOL III™ can quickly and easily perform tests while the motor is energized and under load without the operator having to open the electrical panel.

Split-core current transformers (CT) for the 100A and 1000A versions of the ALL-SAFE PRO® make it unnecessary to disconnect motor phase leads when installing the current transformers – saving substantial time and money.