Fluke 437-II Power Quality & Energy Analyzer

Model: 437-II

Designed for marine, aviation, aerospace and military applications, the 437-II adds 400Hz measurement and analysis to the capabilities of the 435-II and is a powerful diagnostic, troubleshooting and monitoring tool for these applications.

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Complete Kit

$10,499.99 USD





 

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

The Fluke 437-II is a Class A compliant three-phase power quality analyzer that help you locate, predict, prevent and troubleshoot problems in single phase and three phase power distribution systems. Great for Marine, Military, and Aero Applications. In addition to all the standard features of the Fluke 434-II, the Fluke 437-II offers additional features for the more demanding application.


Key Features

  • 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 100/120 cycles (50/60Hz) of each event that is detected in all modes, without set-up.
  • 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 real-time: Analyze the trends using the cursors and zoom tools.
  • 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 condition with memory for up to 600 parameters at user defined intervals
  • View graphs and generate reports: With included analysis software.
  • Battery life: Seven hours operating time per charge on Li-ion battery pack.

About the Fluke 430 Series

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 three-phase and single-phase power distribution systems. Additionally, the Fluke-patented energy loss algorithm, Unified Power 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
The 430 Series Energy Loss Calculator
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.

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-on investment 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.


The 430 Series Data Display
The 430 Series Data Display
PowerWave data capture

For some users, loads switching is a cause of power quality problems. When loads switch on, the current draw sometimes causes the voltage to drop to a level that causes other equipment to malfunction. The PowerWave function available in the 435 and 437 Series II models enables users to capture voltage, current and frequency signals simultaneously at a high speed to see which interaction is potentially causing problems. PowerWave goes beyond standard power quality measurements; PowerWave's fast data capture mode enables system dynamics to be characterized. Waveforms for voltage and current are continuously captured for the specified time, and are displayed on screen in high detail; the power waveform is derived from the data. In addition, half-cycle RMS values for voltage, current, power and frequency can be stored and retrieved for analysis. This feature is particularly useful for testing of standby generation systems and UPS systems where reliable switch-on can be vital.



Power inverter efficiency

Power inverters take DC current and transform it into AC current, or vice versa. Solar generation systems usually include an inverter that takes the DC energy from the solar cells and converts it to useful AC power. Inverters can lose performance over time and need to be checked. By comparing the input power with the output power you can determine the system efficiency. The 435 and 437 II models can measure the efficiency of such inverters by simultaneously measuring the DC and AC power of a system to determine how much power is lost in the conversion process.



Measures everything

Measure true-rms, peak voltage and current, frequency, dips and swells, transients, interruptions, power and power consumption, peak demand, harmonics up to the 50th, inter-harmonics, flicker, mains signaling, inrush and unbalance.



Logger: record the detail you need

User-configurable, long-term recording of MIN, MAX and AVG readings for up to 150 parameters on all 4 phases. Enough memory is available to record 600 parameters for over a year with 10 second resolution, or capture smaller variations with resolution down to 0.25 seconds. The logger function is quickly accessed by the LOGGER button, the simple step-by-step setup makes capturing your important measurements as easy as can be.



System-monitor: summary screen of overall power quality health

The MONITOR mode delivers a dashboard display of rms voltage, harmonics, flicker, interruptions, rapid voltage changes, swells, unbalance, frequency and mains signaling.

The dashboard is updated live, showing compliance of each parameter to EN50160 limits or your own limits. Color-coded bars clearly show which parameters are inside (pass) or outside (fail) limits. During a monitor session, you can easily drill down to more detail of any parameter to view and capture its trend for a report.

400 Hz

By increasing the power frequency to 400 Hz, transformers and motors can be much smaller and lighter than at 50 or 60 Hz, which is an advantage in aircrafts, submarines, space crafts, and other military equipment and hand-held tools. The 437 II model captures power quality measurements for these types of avionic and military systems.



Extensive data analysis possibilities

The Fluke 430 Series II analyzers provide three ways to analyze measurements. Cursors and zoom tools can be used "live" while taking measurements, or "off line" on stored measurement data. Additionally, the stored measurements can be transferred to a PC with the included software to perform custom analysis and create reports. Measurement data can also be exported to common spreadsheet programs. Store hundreds of measurement datasets and screen captures for use in reports (depending on memory capacity).



Easy to use

Pre-programmed setups and user-friendly screens make power quality testing as simple as you would expect from Fluke. The high-resolution color screen updates every 200 ms and displays waveforms and wiring diagrams color coded to industry standards. Handy on-screen wiring diagrams for all commonly used three-phase and single-phase configurations guide you through connections.



CAT IV 600 V and CAT III 1000 V safety rating

Designed to help protect you and your equipment, the Fluke 430 Series II analyzers and accessories are all certified to meet the stringent standards for use in CAT IV 600 V and CAT III 1000 V environments such as power connections and outlets throughout a low-voltage power distribution system.



Automatic transient display

Every time an event or voltage distortion is detected, the instrument triggers and automatically stores voltage and current waveforms on all three phases and neutral. The analyzer will also trigger when a certain current level is exceeded. Hundreds of dips, swells, interruptions and transients can be captured this way. You can see voltage transients as high as 6 kV and as fast as 5 microseconds.


Fully Class-A compliant
The Fluke 435-II and 437-II are fully compliant with the new IEC 61000-4-30 Edition 2 Class-A standard. With this powerful capability, all measurements will be consistent and reliable in accordance with the latest international standard. Fluke's Class A compliance, including time synchronization compliance has been independently verified, certification is available on request.

IEC 61000-4-30 Edition 2 Class Compliance
437-II 435-II 434-II
Measurement algorithms
Voltage accuracy 0.1 % of Vnom 0.1 % of Vnom 0.5 % of Vnom
Class compliance A A S
Time synchronization Optional with GPS430 accessory
What is Class-A conformity?

Power quality measurement is a relatively new, and quickly evolving field. There are hundreds of manufacturers around the world with unique measurement methodologies. Whereas basic single- and three-phase electrical measurements like rms voltage and current were defined long ago, many power quality parameters were not previously defined, forcing manufacturers to develop their own algorithms. With so much variation between instruments, electricians tend to waste too much time trying to understand an instrument's capabilities and measurement algorithms instead of understanding the quality of the power itself! The new IEC 61000-4-30 Edition 2 Class-A standard takes the guesswork out of selecting a power quality instrument. The standard IEC 61000-4-30 Edition 2 defines the measurement methods for each parameter to obtain reliable, repeatable and comparable results. In addition, the accuracy, bandwidth and minimum set of parameters are all clearly defined. The 435 and 437 Series II models include flagging and available internal clock time-synching to fully comply with the rigorous requirements of Class A compliance. The Edition 2 standard includes a new class of instrument, Class S. While not as accurate as Class A instruments, Class S instruments such as the 434 Series II Energy Analyzer produce results that are consistent with Class A instruments.

Specifications

Model Measurement range Resolution Accuracy
Volt
Vrms (ac+dc) 434-II 1 V to 1000 V phase to neutral 0.1 V ± 0.5% of nominal voltage****
435-II and 437-II 1 V to 1000 V phase to neutral 0.01 V ± 0.1% of nominal voltage****
Vpk 1 Vpk to 1400 Vpk 1 V 5% of nominal voltage
Voltage Crest Factor (CF) 1.0 > 2.8 0.01 ± 5 %
Vrms½ 434-II 1 V to 1000 V phase to neutral 0.1 V ± 1% of nominal voltage
434-II and 435-II 0.1 V ± 0.2% of nominal voltage
Vfund 434-II 1 V to 1000 V phase to neutral 0.1 V ± 0.5% of nominal voltage
435-II and 437-II 0.1 V ± 0.1% of nominal voltage
Amps (accuracy excluding clamp accuracy)
Amps (ac +dc) i430-Flex 1x 5 A to 6000 A 1 A ± 0.5% ± 5 counts
i430-Flex 10x 0.5 A to 600 A 0.1 A ± 0.5% ± 5 counts
1mV/A 1x 5 A to 2000 A 1A ± 0.5% ± 5 counts
1mV/A 10x 0.5 A A to 200 A (ac only) 0.1 A ± 0.5% ± 5 counts
Apk i430-Flex 8400 Apk 1 Arms ± 5 %
1mV/A 5500 Apk 1 Arms ± 5 %
A Crest Factor (CF) 1 to 10 0.01 ± 5 %
Amps½ i430-Flex 1x 5 A to 6000 A 1 A ± 1% ± 10 counts
i430-Flex 10x 0.5 A to 600 A 0.1 A ± 1% ± 10 counts
1mV/A 1x 5 A to 2000 A 1A ± 1% ± 10 counts
1mV/A 10x 0.5 A A to 200 A (ac only) 0.1 A ± 1% ± 10 counts
Afund i430-Flex 1x 5 A to 6000 A 1 A ± 0.5% ± 5 counts
i430-Flex 10x 0.5 A to 600 A 0.1 A ± 0.5% ± 5 counts
1mV/A 1x 5 A to 2000 A 1A ± 0.5% ± 5 counts
1mV/A 10x 0.5 A A to 200 A (ac only) 0.1 A ± 0.5% ± 5 counts
Hz
Hz Fluke 434 @ 50 Hz nominal

42.50 Hz to 57.50 Hz

0.01 Hz ± 0.01 Hz
Fluke 434 @ 60 Hz nominal 51.00 Hz to 69.00 Hz 0.01 Hz ± 0.01 Hz
Fluke 435/7 @ 50 Hz nominal 42.500 Hz to 57.500 Hz 0.001 Hz ± 0.01 Hz
Fluke 435/7 @ 60 Hz nominal 51.000 Hz to 69.000 Hz 0.001 Hz ± 0.01 Hz
Fluke 437 @ 400 Hz nominal 340.0 Hz to 460.0 Hz 0.1 Hz ± 0.1 Hz
Power
Watts (VA, var) i430-Flex max 6000 MW 0.1 W to 1 MW ± 1% ± 10 counts
1 mV/A max 2000 MW 0.1 W to 1 MW ± 1% ± 10 counts
Power factor (Cos j/DPF) 0 to 1 0.001 ± 0.1% @ nominal load conditions
Energy
kWh (kVAh, kvarh) i430-Flex 10x Depends on clamp scaling and V nominal ± 1% ± 10 counts
Energy loss i430-Flex 10x Depends on clamp scaling and V nominal ± 1% ± 10 counts Excluding line resistance accuracy
Harmonics
Harmonic order (n) DC, 1 to 50 Grouping: Harmonic groups according to IEC 61000-4-7
Inter-harmonic order (n) OFF, 1 to 50 Grouping: Harmonic and Interharmonic subgroups according to IEC 61000-4-7
Volts %f 0.0 % to 100 % 0.1 % ± 0.1% ± n x 0.1 %
%r 0.0 % to 100 % 0.1 % ± 0.1% ± n x 0.4 %
Absolute 0.0 to 1000 V 0.1 V ± 5% *
THD 0.0 % to 100 % 0.1 % ± 2.5 %
Amps %f 0.0 % to 100 % 0.1 % ± 0.1% ± n x 0.1%
%r 0.0 % to 100 % 0.1 % ± 0.1% ± n x 0.4 %
Absolute 0.0 to 600 A 0.1 A ± 5% ± 5 counts
THD 0.0 % to 100 % 0.1 % ± 2.5 %
Watts %f or %r 0.0 % to 100 % 0.1 % ± n x 2%
Absolute Depends on clamp scaling and V nominal - ± 5% ± n x 2 % ± 10 counts
THD 0.0 % to 100 % 0.1 % ± 5 %
Phase Angle -360° to +0° ± n x 1°
Flicker
Plt, Pst, Pst(1min) Pinst 0.00 to 20.00 0.01 ± 5 %
Unbalance
Volts % 0.0 % to 20.0 % 0.1 % ± 0.1 %
Amps % 0.0 % to 20.0 % 0.1% ± 1 %
Mains signaling
Threshold levels Threshold, limits and signaling duration is programable for two signaling frequencies - -
Signaling frequency 60 Hz to 3000 Hz 0.1 Hz
Relative V% 0 % to 100 % 0.10 % ± 0.4 %
Absolute V3s (3 second avg.) 0.0 V to 1000 V 0.1 V ± 5 % of nominal voltage
General specifications
Case Design Rugged, shock proof with integrated protective holster Drip and dust proof IP51 according to IEC60529 when used in tilt stand position Shock and vibration Shock 30 g, vibration: 3 g sinusoid, random 0.03 g 2 /Hz according to MIL-PRF-28800F Class 2
Display Brightness: 200 cd/m 2 typ. using power adapter, 90 cd/m 2 typical using battery power Size: 127 mm x 88 mm (153 mm/6.0 in diagonal) LCD Resolution: 320 x 240 pixels Contrast and brightness: user-adjustable, temperature compensated
Memory 8GB SD card (SDHC compliant, FAT32 formatted) standard, upto 32GB optionally Screen save and multiple data memories for storing data including recordings (dependent on memory size)
Real-time clock Time and date stamp for Trend mode, Transient display, System Monitor and event capture
Environmental
Operating temperature 0 °C ~ +40 °C; +40 °C ~ +50 °C excl. battery
Storage temperature -20 °C ~ +60 °C
Humidity +10 °C ~ +30 °C: 95% RH non-condensing +30 °C ~ +40 °C: 75% RH non-condensing +40 °C ~ +50 °C: 45% RH non-condensing
Maximum operating altitude Up to 2,000 m (6666 ft) for CAT IV 600 V, CAT III 1000 V Up to 3,000 m (10,000 ft) for CAT III 600 V, CAT II 1000 V Maximum storage altitude 12 km (40,000 ft)
Electro-Magnetic-Compatibility (EMC) EN 61326 (2005-12) for emission and immunity
Interfaces mini-USB-B, Isolated USB port for PC connectivity SD card slot accessible behind instrument battery
Warranty Three years (parts and labor) on main instrument, one year on accessories
Included accessories
Power options BC430 Power Adapter International plug adapter set BP290 (Single capacity Li-ion battery) 28Wh (7 hours or more)
Leads TL430 Test lead and Alligator clip set
Color coding WC100 color coding clips and regional decals
Flexible current probes i430flex-TF, 24 inch (61cm) length, 4 clamps
Memory, Software and PC connection 8 GB SD card PowerLog on CD (includes operator manuals in PDF format) USB cable A-Bmini
Carrying case C1740 Soft Case for 434-II and 435-II C437 Hard Case with rollers for 437-II

*± 5 % if ? 1 % of nominal voltage ± 0.05 % of nominal voltage if < 1% of nominal voltage ** 50Hz/60Hz nominal frequency according to IEC 61000-4-30 *** 400Hz measurements are not supported for Flicker, Mains Signaling and Monitor Mode. ****for nominal voltage 50 V to 500 V

Click here for complete specifications on the Fluke 437-II
Fluke 434-II Power Quality and Energy Analyzer Fluke 435-II Power Quality and Energy Analyzer Fluke 437-II Power Quality and Energy Analyzer
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
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.

Perform custom analysis and create reports with included software. Measurement data can also be exported to common spreadsheet programs.

Fluke Power Log Software Screen

Generate reports and view graphs with Fluke Power Log Software

Designed to quickly view recorded data, the included Power Log software displays all recorded parameters on interactive trends. Generate a professional report with the 'Report Writer' function, or copy and paste images into report document manually.

FlukeView Power Quality Analyzer Software (SW43W) offers you simple mouse-controlled tools to work with your Power Quality Analyzer.

The FlukeView software communicates with your Power Quality Analyzer via the optically isolated OC4USB adapter/cable connected to the USB of the PC. The OC4USB driver creates a virtual COM port. FlukeView will handle the USB port as a COM port.

  • Capture measurement screens for professional-looking reports
  • Log readings to your computer disk drive
  • Works with Windows® word processing, spreadsheet and analysis software
  • Windows® 3.1, Windows® 95 and Windows® NT compatible

Note:
The optional RS-232 adapter/cable PM9080 allows you to communicate via a COM port of your PC.

Accessories

Click on a category to view a selection of compatible accessories with the Fluke 437-II Power Quality & Energy Analyzer.

Fluke WC100 multi color wire clips WC100 9135
For use with Fluke 430-Series power quality analyzers.
$39.99 USD

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Fluke i5sPQ3, 5A AC Current Clamps, 3-pack I5SPQ3 3023
A pack of 3 pieces of the i5s current clamps, specially configured to provide low current accuracy while taking measurements on secondary current transformers.
$1,299.99 USD

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Fluke i200s AC Current Clamp I200S 1555
200A AC current clamp with BNC terminated lead.
$224.99 USD

was $249.99


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Fluke i400S AC Current Clamp I400S 1825
400A AC current clamp with BNC terminated lead.
$260.99 USD

was $289.99


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Fluke i1000s AC Current Clamp I1000S 1820
1000A AC Current Clamp with BNC terminated lead.
$517.49 USD

was $574.99


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Fluke i2000 FLEX Flexible AC Current Probe I2000-FLEX 1823
2000A flexible AC current transformer for Fluke power quality analyzers.
$359.99 USD

was $399.99


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Fluke i3000s AC Current Clamp I3000S 1556
3000A AC current clamp with BNC terminated lead
$562.49 USD

was $624.99


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Fluke i3000s Flex-24 Flexible AC Current Probe, 24 inch length I3000S-FLEX-24 4624
Flexible 24" 3000A AC current probe with BNC terminated lead.
$472.49 USD

was $524.99


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Fluke i6000s Flex-24 AC Current Probe I6000S-FLEX-24 5937
Flexible 24" 6000A AC current probe with BNC terminated lead.
$629.99 USD

was $699.99


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Fluke i6000s Flex-36 AC Current Probe I6000S-FLEX-36 5936
Flexible 36" 6000A AC current probe with BNC terminated lead.
$719.99 USD

was $799.99


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Fluke i30s AC/DC Current Clamp I30S 4619
30A AC/DC current clamp with BNC terminated lead.
$562.49 USD

was $624.99


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Fluke 80i-110s AC/DC Current Clamp 80I-110S 1530
100A DC/70A AC current clamp with BNC terminated lead.
$719.99 USD

was $799.99


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Fluke 90i-610s AC/DC Current Probe 90I-610S 1533
600A AC/DC current clamp with BNC terminated lead.
$449.99 USD

was $499.99


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Fluke AC285 SureGrip Large Alligator Clip AC285 1403
Large alligator clip for test leads used with Fluke meters.
$24.99 USD

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Fluke BB120 Shielded Banana to Female BNC Adapter BB120 1539
Shielded Banana to Female BNC Adapter for Fluke meters and probes.
$39.99 USD

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Fluke BP290 Li-Ion Battery Pack BP290 9158
For Fluke 43X power quality analyzers and 190-series ScopeMeters.
$224.99 USD

was $249.99


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Fluke BP291 Double Capacity Li-Ion Battery Pack BP291 8807
For Fluke 43X power quality analyzers and 190-series ScopeMeters.
$314.99 USD

was $349.99


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Fluke EBC290 External Battery Charger EBC290 8793
External battery charger for BP290-Series Li-ion batteries for Fluke ScopeMeters and power quality analyzers.
$116.99 USD

was $129.99


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