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ManualsBrandsFluke ManualsConstruction Tools438-II Power Quality and Motor Analyzer
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Quickly and easily discover electrical and
mechanical performance of electric motors, and
evaluate power quality with a single test tool
The new Fluke 438-II Power Quality and Motor Analyzer adds key
mechanical measurement capabilities for electric motors to the
advanced power quality analysis functions of the Fluke 430 Series
II Power Quality Analyzers. Quickly and easily measure and ana-
lyze key electrical and mechanical performance parameters such as
power, harmonics, unbalance, motor speed, torque and mechanical
power without the need of mechanical sensors.
The ideal portable motor analysis test tool, the 438-II can help
locate, predict, prevent, and troubleshoot power quality problems
in three-phase and single-phase power distribution systems, while
giving technicians the mechanical and electrical information they
need to effectively evaluate motor performance.
• Measure key parameters on direct-on-line motors and motors
driven by specific variable frequency drive systems including
torque, RPM, mechanical power and motor efficiency
• Perform dynamic motor analysis by plotting of motor de-rating
factor against load according to NEMA guidelines
• Calculate mechanical power and efficiency without the need of
mechanical sensors, just connect to the input conductors and
you’re ready to go
• Measure electrical power parameters such as voltage, current,
power, apparent power, power factor, harmonic distortion and
unbalance to identify characteristics that impact motor efficiency
• Identify power quality issues such as dips, swells, transients,
harmonics and unbalance
• PowerWave data technology captures fast RMS data, and shows
half-cycle averages and waveforms to characterize electrical
system dynamics (generator start-ups, UPS switching etc.)
• Waveform capture function captures 100/120 cycles (50/60 Hz) of
each detected event, in all modes, without set-up
• Automatic transient mode captures waveform data at 200 kS/s on
all phases simultaneously up to 6 kV.
Fluke 438-II Power Quality
and Motor Analyzer
KEY MEASUREMENTS
Electrical power, harmonics, unbalance,
motor speed, torque and mechanical
power without the need of mechanical
sensors.
FLUKE CONNECT
®
COMPATIBLE*
View data locally on the instrument,
via Fluke Connect mobile app and
PowerLog 430-II desktop software.
SAFETY RATED FOR INDUSTRIAL
APPLICATIONS
600 V CAT IV/1000 V CAT III rated
for use at the service entrance and
downstream
* Not all models are available in all countries. Check with
your local Fluke representative.
TECHNICAL DATA

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