Fluke 437-II, 434-II, 435-II Specifications

TECHNICAL DATA

Fluke 430 Series II Three-Phase
Power Quality and Energy Analyzers

More detailed power quality analysis capability, and a
new Fluke-patented energy monetization function

The new 430 Series II Power Quality and Energy Analyzers offer
the best in power quality analysis and introduce, for the first time
ever, the ability to monetarily quantify energy losses.

The new Fluke 434, 435 and 437 Series II models help locate,
predict, prevent, and troubleshoot power quality problems in three­phase and single-phase power distribution systems. Additionally,
the Fluke-patented energy loss algorithm, Unified Measure­ment, measures and quantifies energy losses due to harmonics
and unbalance issues, allowing the user to pinpoint the origin of
energy waste within a system.

• Energy loss calculator: Classic active and reactive power
measurements, unbalance and harmonic power, are quantified
to pinpoint true system energy losses in dollars (other local
currencies available).

• Power inverter efficiency: Simultaneously measure AC output
power and DC input power for power electronics systems using
optional DC clamp.

• PowerWave data capture: 435 and 437 Series II analyz­ers capture fast RMS data, show half-cycle and waveforms to
characterize electrical system dynamics (generator start-ups, UPS
switching etc.).

• Waveform capture: 435 and 437 Series II models capture
50/60 cycles (50/60Hz) of each event that is detected in all
modes, without set-up.

KEY MEASUREMENTS

Power Quality Measurements, Power
Waveform Details, Event Capture and
Recording, Energy Loss and Efficiency
calculations

FLUKE CONNECT® CO M PATIB L E*

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

• Automatic Transient Mode: 435 and 437 Series II analyzers
capture 200 kHz waveform data on all phases simultaneously up
to 6 kV.

• Fully Class-A compliant: 435 and 437 Series II analyzers
conduct tests according to the stringent international IEC
61000-4-30 Class-A standard.

• Mains signaling: 435 and 437 Series II analyzers measure
interference from ripple control signals at specific frequencies.

• 400 Hz measurement: 437 Series II analyzer captures power
quality measurements for avionic and military power systems.

• Troubleshoot: Analyze the trends using the cursors and zoom
tools.

* Not all models are available i n all count ries. Check wit h

your local Fluke representative.

• Highest safety rating in the industry: 600 V
CAT IV/1000 V CAT III rated for use at the service
entrance.

• Measure all three phases and neutral: With
included four flexible current probes with
enhanced thin flex designed to fit into
the tightest places.

• Automatic Trending: Every measurement is
always automatically recorded, without any
set-up.

• System-Monitor: Ten power quality parameters
on one screen according to EN50160 power
quality standard.

• Logger function: Configure for any test condi-
tion with memory for up to 600 parameters at
user defined intervals.

• View graphs and generate reports: With
included analysis software.

• Battery life: Up to 8 hours operating time per
charge on Li-ion battery pack.

• Wireless data download: Download data to
PC wirelessly and capture screens using
Fluke Connect App.

Unified power measurement

Fluke’s patented Unified Power Measurement
system (UPM) provides the most comprehensive
view of power available, measuring:

• Parameters of Classical Power (Steinmetz 1897)
and IEEE 1459-2000 Power

• Detailed Loss Analysis

• Unbalance Analysis

These UPM calculations are used to quantify the
fiscal cost of energy loss caused by power quality
issues. The calculations are computed, along with
other facility-specific information, by an Energy
Loss Calculator that ultimately determines how
much money a facility loses due to wasted energy.

Energy savings

Traditionally energy savings are achieved by mon­itoring and targeting, or in other words, by finding
the major loads in a facility and optimizing their
operation. The cost of power quality could only be
quantified in terms of downtime caused by lost
production and damage to electrical equipment.
The Unified Power Measurement (UPM) method
now goes beyond this to achieve energy savings
by discovering the energy waste caused by power
quality issues. Using the Unified Power Measure­ment, Fluke’s Energy Loss Calculator (see screen
shot below) will determine how much money a
facility is losing due to waste energy.

Energy loss calculator

Useful kilowatts (power) available

Reactive (unusable) power

Kilowatts made unusable by unbalance issues

Kilowatts made unusable by harmonics

Neutral current

Total cost of wasted kilowatt hours

2 Fluke Corporation Fluke 430 Series II Three-Phase Power Quality and Energy Analyzers

Unbalance

UPM gives a more comprehensive breakdown of
the energy consumed in the plant. In addition to
measuring reactive power (caused by poor power
factor), UPM also measures the energy waste
caused by unbalance; the effect of unevenly load­ing each phase in three-phase systems. Unbalance
can often be corrected by reconnecting loads on
different phases to ensure the current drawn on
each phase is as equal as possible. Unbalance
can also be corrected by installing an unbalance
reactance device (or filter), that will minimize the
effects. Correcting unbalance should be basic good
housekeeping in the facility as unbalance problems
can cause motor failure or shorten equipment life
expectancy. Unbalance also wastes energy. Using
UPM can minimize or eliminate that energy waste,
thus saving money.

Harmonics

UPM also provides details of the energy wasted
in your facility due to the presence of harmonics.
Harmonics may be present in your facility due to
the loads you operate or may be caused by loads
in adjacent facilities. The presence of harmonics in
your facility can lead to:

• overheating transformers and conductors

• nuisance tripping of circuit breakers

• early failures of electrical equipment

Quantifying the cost of wasted energy due to the
presence of harmonics simplifies the return-on­investment calculation needed to justify purchasing
harmonic filters. By installing a harmonic filter the
ill effects of harmonics can be reduced and energy
waste eliminated, resulting in lower operational
costs and more reliable operation.

430 Series II Power Quality and Energy Analyzer selection table

Model Fluke 434-II Fluke 435-II Fluke 437-II

Standard compliance IEC 61000-4-30 Class S IEC 61000-4-30 Class A IEC 61000-4-30 Class A

Volt Amp Hz

Dips and swells

Harmonics

Power and energy

Energy loss calculator

Unbalance

Monitor

Inrush

Event waveform capture

Flicker

Transients

Mains signaling

Power wave

Power inverter efficiency

400Hz

C1740 Soft Case

C437-II Hard Case with rollers

FC WiFi SD card (Max 32 GB)* 8 GB 8 GB 8 GB

All models include the following accessories TL430 test lead set, 4 x i430 thin flexi current probes, BP290 battery, BC430 power adapter with international power adapter set, USB cable A-B mini and
PowerLog CD.

* Standard 8GB SD card included with /INTL instrument versions.

• • •

• • •

• • •

• • •

• • •

• • •

• • •

• • •

• •

• •

• •

• •

• •

• • •

•

• •

•

3 Fluke Corporation Fluke 430 Series II Three-Phase Power Quality and Energy Analyzers

Technical specifications

Specifications are valid for models Fluke 434-II, Fluke 435-II, Fluke 437-II unless otherwise specified.
Specificatons for Amp and Watt readings are based upon i430-Flexi-TF unless otherwise specified.

Input characteristics

Voltage inputs

Number of inputs 4 (3 phase + neutral) dc-coupled

Maximum input voltage 1000 Vrms

Nominal voltage range Selectable 1 V to 1000 V

Max. peak measurement voltage 6 kV (transient mode only)

Input impedance 4 MΩ//5 pF

Bandwidth > 10 kHz, up to 100 kHz for transient mode

Scaling 1:1, 10:1, 100:1, 1,000:1 10,000:1 and variable

Current inputs

Number of inputs 4 (3 phase + neutral) dc- or ac-coupled

Type Clamp or current transformer with mV output or i430flex-TF

Range

Input impedance 1 MΩ

Bandwidth > 10 kHz

Scaling 1:1, 10:1, 100:1, 1,000:1 10,000:1 and variable

Sampling system

Resolution 16 bit analog to digital converter on 8 channels

Maximum sampling speed 200 kS/s on each channel simultaneously

RMS sampling 5000 samples on 10/12 cycles according to IEC61000-4-30

PLL synchronization 4096 samples on 10/12 cycles according to IEC61000-4-7

Nominal frequency

Display modes

Waveform display

Phasor diagram

Meter readings

Trend graph

Bar graph Available in Monitor and Harmonics mode

Event list

0.5 Arms to 600 Arms with included i430flex-TF (with sensitivity 10x)
5 Arms to 6000 Arms with included i430flex-TF (with sensitivity 1x)

0.1 mV/A to 1 V/A and custom for use with optional ac or dc clamps

434-II and 435-II: 50 Hz and 60 Hz
437-II: 50 Hz, 60 Hz and 400 Hz

Available in all modes via SCOPE key
435-II and 437-II: Default display mode for Transients function
Update rate 5x per second
Displays 4 cycles of waveform data on screen, up to 4 waveforms simultaneously

Available in all modes via Scope waveform display
Default view for Unbalance mode

Available in all modes except Monitor and Transients, provides tabulated view of all available
readings
Fully customizable up to 150 readings for Logger mode

Available in all modes except Transients
Single vertical cursor with min max and avg reading at cursor position

Available in all modes
Provides waveforms on 435II and 437II only

4 Fluke Corporation Fluke 430 Series II Three-Phase Power Quality and Energy Analyzers