The EMAX tester allows for proactive predictive maintenance without requiring a shutdown of the motors for access. The power and convenience of dynamic testing collects data without interrupting production processes. The EMAX can be used for process analysis with motor current signature analysis and also provides voltage, power, and efficiency data. Five major fault zones can be tested and monitored providing valuable insight into incoming power quality, power circuit condition, stator health, and motor efficiency. A reduction in unplanned downtime and unnecessary repairs and replacements results from the user-friendly digital and spectrum data reports.