Fluke - 434-II and 435-II Power Quality and Energy Analyzers

Product Overview:

Analyze power quality issues, calculate the costs of wasted energy and prevent downtime with the Fluke 434-II Energy Analyzer and Fluke 435-II Power Quality and Energy Analyzer.
  • Advanced power quality health—At-a-glance power quality health data in real time so you can make better maintenance decisions
  • Energy loss calculator—Discover the costs of energy loss specifically caused by poor power quality
  • Highest safety rating in industry—CAT III 1000 V / CAT IV 600 V

More

The Fluke 434-II Energy Analyzer and 435-II Power Quality and Energy Analyzer are designed to help you minimize downtime, quickly troubleshoot power quality issues and easily discover the costs of wasted energy. Downtime is expensive and getting the data you need to solve to critical power quality problems quickly is key. The 434-II and 435-II Analyzer’s measurement process and data output have been optimized to help you access the most critical information easily.

Multiple parameters are measured simultaneously and displayed in formats that quickly describe overall power quality health. The detailed information helps you make better maintenance decisions—whether you’re trying to reduce energy waste, find the source of power quality issues or see how motor startups are affecting your electrical system. Data can be accessed as simple digital values, trend graphs (for fast insight into changes over time), waveforms, or phasor diagrams. The data can also be analyzed and organized into tabular formats. Detailed event data allows you to see the magnitude, duration and time stamping of anomalies enabling you to rapidly correlate the problems you are experiencing in your facility.

Energy Loss Calculator—Calculate money lost to energy waste in terms of real dollars.


Fluke 430 Series II Energy Loss Calculator
Fluke 430 Series II Energy Loss Calculator

It’s a simple fact, poor power quality can have a big impact on the bottom line. The Fluke 434-II Energy Analyzer and Fluke 435-II Power Quality and Energy Analyzer enable you to identify issues and measure energy loss giving you specific insight into the amount of loss in dollars. The Energy Loss Calculator helps you better understand your energy consumption by creating associations between things like effective power and poor power quality characteristics such as reactive power, unbalance, distortion, or neutral current. These power quality and energy analyzers also offer users the flexibility to input cable length and diameter to calculate loss due to conductor sizing (or use AUTO mode if cable specifications are unknown) and enter up to four unique time-dependent daily rates (kWh) for more accurate calculations. Armed with this critical data, users can easily justify the investment necessary to take countermeasures.

Advanced Power Quality Health—At-a-glance power quality health data in real-time so you have the data you need, when you need it


Power wave data capture
Power wave data capture

The Fluke 434-II Energy Analyzer and 435-II Power Quality and Energy Analyzer utilize an integrated Power Quality Health summary that gives you an at-a-glance view of a complete range of power quality issues in real time. With a simple graphical presentation, complete with tolerance limits, you can quickly discover which power quality problems may be present on your electrical system. If you don’t know where to start or what problems might exist, the advanced Power Quality Health summary simplifies the task and serves as a comprehensive starting point for further troubleshooting.

Power Inverter Efficiency

Power inverters take dc current and transform it into ac current, or vice versa. But, what percentage of that power going into the inverter comes out as usable current? The Fluke 434-II and 435-II Analyzers have an integrated power inverter efficiency mode that allows users to better understand power inverter performance. Nothing is ever 100 % efficient, and a power inverter’s efficiency will vary depending on how much power is being used at the time (with the efficiency generally being greater when more power is being used). Inverters can also lose performance over time and need to be checked. By comparing the input power with the output power, you can determine the system efficiency. With the Power Inverter Efficiency feature you can discover just how good your inverter is at converting your dc power to ac (or vice versa).

AutoTrend—Quickly see the trend


AutoTrend capability shows changes over time
AutoTrend capability shows changes over time

With a unique AutoTrend feature you can get fast insight into power quality changes over time. Every displayed reading is automatically and continuously recorded without having to set up threshold levels or having to manually start the process so you can quickly view trends in voltage, current, frequency, power, harmonics or flicker on all three phases plus neutral.

Advanced Power Quality Functions, Unprecedented Energy Analysis Capabilities

Power quality issues can affect the operation of critical loads and have a negative impact on your bottom line. Think of the Fluke 435-II Power Quality and Energy Analyzer as your insurance policy. Calculate the cost of wasted energy due to poor power quality and troubleshoot the source of power quality or motor performance issues all with a single test tool designed to give you the data you need to quickly get to the root of the problem.

Wrapped in a lightweight, rugged package, the Fluke 434-II Energy Analyzer and 435-II Power Quality and Energy Analyzer are the ideal portable power quality instruments.

  • Quickly see how much money you’re losing due to energy waste in terms of real dollars
  • Get at-a-glance power quality health data in real-time so you can make better maintenance decisions
  • Measure all three phases and neutral with the included flexible current probes
  • Easily see how motor startups are affecting electrical system performance
  • Highest safety rating in the industry: 600 V CAT IV/1000 V CAT III rated for use at the service entrance
  • Fluke Connect® compatible* – view data locally on the instrument, via Fluke Connect mobile app and PowerLog 430-II desktop software

The Fluke 430-II Series Power Quality Analyzers

The Fluke 434-II Energy Analyzer helps you understand your overall energy consumption and quantify how much energy loss is costing your facility. The Fluke 435-II Power Quality and Energy Analyzer includes the same great features of the 434-II while adding advanced power quality functionality for more in depth troubleshooting. If you need the same advanced functionality as the 435-II a higher frequency, the Fluke 437-II is the must-have power quality analyzer for 400 Hz power systems. Lastly, the Fluke 438-II Power Quality and Motor Analyzer includes all the power quality and energy analysis capabilities that the Fluke 435-II has as well as the ability to measure mechanical motor parameters such as motor speed, torque and mechanical power without the need of mechanical sensors.

Features Fluke 434-II Fluke 435-II Fluke 437-II Fluke 438-II
Power Measurements
Power Quality Measurements
IEC61000-4-30 Compliance Class S Class A Class A Class A
Power, Energy & Loss Calculator
Monitor & Trending
Inrush, Inverter Efficiency
Advanced Analysis; Event Waveforms, Flicker, Transients, Mains Signaling, and Power Wave  
Shipboard Power & 400Hz      
Motor Electrical & Mechanical Analysis (Optional) (Optional) (Optional)
WiFi SD Card Combo

Fluke 435 Series II Power Quality and Energy Analyzer

Includes:

  • BC430 Power Adapter
  • International Plug Adapter Set
  • BP290 (Single Capacity Li-ion Battery) 28 Wh (8 hours or more)
  • TLS430 Test Lead and Alligator Clip Set
  • WC100 Color Coding Clips and Regional Decals
  • i430-Flexi-TF-II, 24 inch (61 cm) Length, 4 Flexible Current Probes
  • 16GB Wi-Fi SD card (8GB SD card for /INTL models)
  • PowerLog on CD (includes operator manuals in PDF format)
  • USB Cable A - Mini B
  • Soft Carrying Bag

Fluke 434II Three-Phase Energy Analyzer

Includes:

  • BC430 Power Adapter
  • International plug adapter set
  • BP290 (Single capacity Li-ion battery) 28 Wh (8 hours or more)
  • TLS430 Test lead and Alligator clip set
  • WC100 color coding clips and regional decals
  • i430flex-TF, 24 inch (61 cm) length, 4 flexible current probes
  • 16GB Wi-Fi SD card (8GB SD card for /INTL models)
  • PowerLog on CD (includes operator manuals in PDF format)
  • USB cable A - Mini B
  • C1740 Soft Case

Fluke 435 Series II Basic Power Quality and Energy Analyzer

Includes:

  • BC430 Power Adapter
  • International Plug Adapter Set
  • BP290 (Single Capacity Li-ion Battery) 28 Wh (8 hours or more)
  • TLS430 Test Lead and Alligator Clip Set
  • WC100 Color Coding Clips and Regional Decals
  • 16GB Wi-Fi SD card (8GB SD card for /INTL models)
  • PowerLog on CD (includes operator manuals in PDF format)
  • USB Cable A - Mini B

Fluke 434 Series II Basic Energy Analyzer

Includes:

  • BC430 Power Adapter
  • International Plug Adapter Set
  • BP290 (Single Capacity Li-ion Battery) 28 Wh (8 hours or more)
  • TLS430 Test Lead and Alligator Clip Set
  • WC100 Color Coding Clips and Regional Decals
  • 16GB Wi-Fi SD card (8GB SD card for /INTL models)
  • PowerLog on CD (includes operator manuals in PDF format)
  • USB Cable A - Mini B
  • C1740 Soft Case

Fluke 438-II Power Quality and Motor Analyzer/MA

Includes:

  • Firmware upgrade package to add motor analysis capabilities to existing Fluke 434, 435 and 437 Series II Power Quality Analyzers
Volt
  Model Measurement Range Resolution Accuracy
Vrms (AC + DC) 434-II 1 V to 1000 V phase to neutral 0.1 V ±0.1% of nominal voltage1
435-II 1 V to 1000 V phase to neutral 0.01 V ±0.1% of nominal voltage1
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   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 1 A ±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 1 A ±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 @ 50 Hz Nominal 42.500 Hz to 57.500 Hz 0.001 Hz ±0.01 Hz
Fluke 435 @ 60 Hz Nominal 51.00 Hz to 69.00 Hz 0.001 Hz ±0.01 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%1
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 (1 min) 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 x 88 mm (153 mm/6.0 in diagonal) LCD Resolution: 320 x 240 pixels Contrast and brightness: user-adjustable, temperature compensated
Memory 16GB Wi-Fi SD card for standard models or 8GB SD card for /INTL models (SDHC compliant, FAT32 formatted), up to 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
View full family specifications »
1. ±5% if ≥ 1% of nominal voltage ±0.05% of nominal voltage if < 1% of nominal voltage
2. 50Hz/60Hz nominal frequency according to IEC 61000-4-30
3. 400Hz measurements are not supported for Flicker, Mains Signaling and Monitor Mode
4. For nominal voltage 50 V to 500 V

More Product Information

The Fluke 437-II series helps you locate, predict, prevent and troubleshoot Power Quality Issues – 50Hz, 60Hz and 400Hz

  • 400 Hz operation for use in avionic and military applications
  • Shipboard power measurement system analyzes according to MIL-STD 1399 to automatically give a full evaluation of voltage, current and power
  • Advanced Power Quality Health— At-a-glance power quality health data in real-time so you have the data you need, when you need it

  • Three-phase power quality recorder with an Android tablet wireless front panel interface
  • Complies with IEC 61000-4-30 Class-A standards for correct evaluation of all measured values
  • Supports quick and reliable configuration even in awkward test locations with the wireless interface that provides a window into what the instrument is recording

  • Power quality statistics according to EN50160
  • Voltage event list (dips, swells and interruptions)
  • Continuous recording of:
    • Voltage
    • Current
    • Power P, Q, S
    • Power factor
    • kWh
    • Flicker
    • Unbalance
    • Frequency
    • Voltage and current harmonics to the 50th / Interharmonics
    • THD
    • Mains signaling
  • Triggered recordings
  • Online mode (Oscilloscope, transients and events)
  • Fast transient analysis up to 10 MHz
  • 4, 600 V voltage probes
  • 4 dual-range flexible current probes (1000 A / 200 A AC)
  • GPS time sync receiver
  • 2 GB Flash Memory

  • Power quality that meets the standard All measurements comply with IEC61000-4-30 standards for correct evaluation of all measured values including voltage, current, power, harmonics, flicker etc.
  • Quick and reliable configuration A tablet computer provides a window into what the instrument is recording, enabling quick and reliable configuration even in awkward test locations
  • Threshold-free set up Apply thresholds after data is collected with Fluke Power Analyze Software – no need to worry about missed information due to incorrect setups
  • Captures everything Cross-channel and current triggering capture every measurement, on every channel, every time
  • Intuitive PC software Easily analyze data and generate reports with automated EN50160 reporting and compliance
  • Reporting has never been easier Auto Report creates either standard reports or customized reports with the minimum effort or hassle. Export reports to almost any format including RTF (Rich Text Format) for editing in Microsoft Word.
  • Plug and play Set up in minutes with self-identifying current probes and single-lead voltage connections
  • No need to reconnect wires Swap channels internally with the wireless PDA or PC when connections are not correct
  • Measure every parameter Voltage and current on three phases, neutral, and ground
  • 5 MHz, 8000 Vpk waveform capture Get a detailed picture of even the shortest events
  • Quickly retrieve data With included SD memory card or via the 100 BaseT high-speed Ethernet connection. SD card includes automatic download to SD when no other connection is made to the instrument

  • Power quality statistics according to EN50160
  • Voltage event list (dips, swells and interruptions)
  • Continuous recording of:
    • Voltage
    • Current
    • Power P, Q, S
    • Power factor
    • kWh
    • Flicker
    • Unbalance
    • Frequency
    • Voltage and current harmonics to the 50th / Interharmonics
    • THD
    • Mains signaling
  • Triggered recordings
  • Online mode (Oscilloscope, transients and events)
  • 2 GB Flash memory

  • Power quality that meets the standard All measurements comply with IEC61000-4-30 standards for correct evaluation of all measured values including voltage, current, power, harmonics, flicker etc.
  • Quick and reliable configuration A tablet computer provides a window into what the instrument is recording, enabling quick and reliable configuration even in awkward test locations
  • Threshold-free set up Apply thresholds after data is collected with Fluke Power Analyze Software – no need to worry about missed information due to incorrect setups
  • Captures everything Cross-channel and current triggering capture every measurement, on every channel, every time
  • Intuitive PC software Easily analyze data and generate reports with automated EN50160 reporting and compliance
  • Reporting has never been easier Auto Report creates either standard reports or customized reports with the minimum effort or hassle. Export reports to almost any format including RTF (Rich Text Format) for editing in Microsoft Word.
  • Plug and play Set up in minutes with self-identifying current probes and single-lead voltage connections
  • No need to reconnect wires Swap channels internally with the wireless PDA or PC when connections are not correct
  • Measure every parameter Voltage and current on three phases, neutral, and ground
  • 5 MHz, 8000 Vpk waveform capture Get a detailed picture of even the shortest events
  • Quickly retrieve data With included SD memory card or via the 100 BaseT high-speed Ethernet connection. SD card includes automatic download to SD when no other connection is made to the instrument

  • Fully Class-A compliant: Conduct tests according to the stringent international IEC 61000-4-30 Class-A standard
  • GPS time synchronization: Correlate data with events or datasets from other instruments with precision
  • Flexible and fully configurable thresholds and scale factors: Allows user to pinpoint specific issues by defining the detailed criteria for detection and recording of disturbances.
  • Uninterrupted power supply (40 minutes): Never miss important events - even record the beginning and end of interruptions and outages to help determine the cause
  • 10 MHz, 6000 Vpk waveform capture: Get a detailed picture of even the shortest event
  • 2 GB data memory: Enables detailed, simultaneous recording of numerous power parameters for long periods of time
  • Comprehensive software included: Provides trend diagrams for root cause analysis, statistical summaries, report writing and real-time data monitoring in the online mode
  • Plug and play: Allows quick setup with automatic sensor detection; sensors are instrument powered, eliminating the need for batteries
  • Rugged field design: Insulated housing and a solid state design with no rotating components enable reliable testing under nearly any conditions

The Fluke 1736 and 1738 Three-phase Power Quality Loggers are versatile, three-phase Fluke Connect-compatible power loggers for conducting energy, load and power quality studies.
  • Key measurements: Automatically capture and log voltage, current, power, harmonics and associated power quality values, and capture dips, swells, and inrush currents with event waveform snapshots and high-resolution RMS profiles
  • Convenient instrument powering: Power instrument directly from the measured circuit
  • Energy Analyze Plus application software: Download and analyze every detail of energy consumption and power quality state of health with our automated reporting and use the integrated power quality health summary to get an at-a-glance understanding of system health

The Fluke 1742, 1746 and 1748 Three-Phase Power Quality Loggers are the best tools to troubleshoot, quantify energy usage and analyze power distribution systems in a fast, easy and safe way.
  • Measure key power quality parameters: Measures harmonics and interharmonics for voltage and current, also includes unbalance, flicker and rapid voltage changes.
  • Measure with premium accuracy: Meets the rigorous IEC 61000-4-30 Class A Edition 3 standard for ‘Testing and measurement techniques–Power quality measurement methods.'
  • One-touch reporting: Create standardized reports according to commonly used standards like EN 50160, IEEE 519, GOST 33073 or export data in PQDIF or NeQual compatible format for use with third party software using the included Fluke Energy Analyze Plus Software.

Fluke Corporation

Since its founding in 1948, Fluke has helped define and grow a unique technology market, providing testing and troubleshooting capabilities that have grown to mission critical status in manufacturing and service industries. Every new manufacturing plant, office, hospital, or facility built today represents another potential customer for Fluke products.

From industrial electronic installation, maintenance and service, to precision measurement and quality control, Fluke tools help keep business and industry around the globe up and running. Typical customers and users include technicians, engineers, metrologists, medical-device manufacturers, and computer network professionals — people who stake their reputations on their tools, and use tools to help extend their personal power and abilities.

Fluke has achieved the number one or number two position in every market in which it competes. The Fluke brand has a reputation for portability, ruggedness, safety, ease of use and rigid standards of quality.

Contact Details

Fluke Corporation Headquarters

6920 Seaway Blvd., Everett, WA 98203

Mailing address: PO Box 9090, Everett, Washington 98206-9090

Phone: 1-425-347-6100

Technical Support Email: fluke-info@fluke.com


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