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Fluke 438-II Shown
The Fluke 438-II Power Quality and Motor Analyzer adds key electric motor mechanical measurements to the Fluke-430-II Series Power Quality Analyzers. An electric motor converts electrical energy into rotational forces that is used to drive critical industrial rotating machines like pumps, compressors and fans. By analyzing the input power the Fluke 438II can calculate the mechanical forces transferred to the mechanical load, without having to use an inline force transducer. The new parameters that can be analyzed in addition to the power quality measurements are:
By specifying the motor rated specifications, the analyzer can be used to obtain readout of the actual measured performance compared to the rated performance making it possible to identify overload condition, impact of poor power quality or the motors efficiency. These measurements are all obtained while the motor is in-service with the added bonus of not requiring external force transducers be installed on the motor shaft.
The derating graph will plot the % load versus derating factor under operating conditions taking into account input power quality according to National Electrical Manufacturers Association (NEMA) guidelines. The derating curve is then used to determine if the motor is operating within its rated performance. Motors operating outside of their rated performance for extended periods of time can result in a reduced lifespan and repeated failures. The 438-II/Basic includes a Soft Carry Case, test lead set, battery, and CD-rom with PowerLog 430-II software and user documentation.
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