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New Fluke 438-II simplifies the process of motor performance diagnosis

May 10, 9:00 UTC+3
Analyzes electrical and mechanical performance on operational motors without mechanical sensors to extend system lifespan
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EVERETT, Washington, May 9, 2016 /PRNewswire/. Measuring mechanical loads typically requires load sensors that can be costly or physically inaccessible. The new Fluke® 438-II Power Quality and Motor Analyzer uses innovative algorithms to analyze not only three-phase power quality but also torque, efficiency, and speed to determine system performance and detect overloaded conditions, eliminating the need for motor load sensors.

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The Fluke 438-II simplifies the process of motor performance diagnosis by providing analysis data for both the electrical and mechanical characteristics of the motor while it is in operation. Using proprietary algorithms, the 438-II measures the three-phase current and voltage waveforms and compares them against rated specifications to calculate motor mechanical performance. The analysis is presented in simple readouts, making it easy to gauge the operating performance and determine if adjustments are needed before failures cause an operational shut down.

The analyzer also provides measurements to determine a motor's efficiency (i.e. the conversion of electrical energy to mechanical torque) and mechanical power under operating load conditions. These measures allow maintenance engineers to determine the motor's in-service operating power compared to its rated power to determine if the motor is operating in overloaded condition or, inversely, if it is oversized for the application energy may be wasted and operating cost increased.

The 438-II is part of the Fluke 430 Series of three-phase power quality analyzers that provide frontline troubleshooting and long-term trending to keep equipment running smoothly.

For more information on the Fluke 438-II Power Quality and Motor Analyzer, visit:

Fluke Corporation

For information on Fluke tools and applications, or to find the location of a distributor, contact Fluke Corporation, P.O. Box 9090, Everett, WA USA 98206, call (800) 44-FLUKE (800-443-5853), fax (425) 446-5116, e-mail or visit the Fluke Web site at

About Fluke

Founded in 1948, Fluke Corporation is the world leader in compact, professional electronic test tools. Fluke customers are technicians, engineers, electricians, and metrologists who install, troubleshoot and manage industrial, electrical and electronic equipment and calibration processes.

Fluke is a registered trademark of Fluke Corporation. The names of actual companies and products mentioned herein may be the trademarks of their respective owners. For more information, visit the Fluke website.

For more information:
Ken West 
44 7768 457 784

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