Advanced power quality functions, unprecedented energy analysis capabilities
Think of the Fluke 435 II Power Quality and Energy Analyzer as your insurance policy. No matter what goes wrong in your facility, with the 435 II you will always be prepared. Equipped with advanced power quality functions and energy monetization capabilities, there is no electrical issue this model can't handle.
Key Features
- Power inverter efficiency: Simultaneously measure AC output power and DC input power for power electronics systems using optional DC clamp.
- PowerWave data capture: Capture fast RMS data, show half-cycle and waveforms to characterize electrical system dynamics (generator start-ups, UPS switching etc.).
- Energy loss calculator: Classic active and reactive power measurements, unbalance and harmonic power, are quantified to pinpoint the fiscal costs of energy losses.
- 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 design 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.
Applications
- PowerWave data capture - capture fast RMS values to see every waveform so you can determine how the voltage, current and frequency values are interacting
- Power inverter efficiency - Power inverter efficiency
- Energy monetization - calculate the fiscal cost of energy waste due to poor power quality
- Energy assessment - quantify the before and after installation improvements in energy consumption to justify energy saving devices
- Frontline troubleshooting - quickly diagnose problems on-screen to get your operation back online
- Predictive maintenance - detect and prevent power quality issues before they cause downtime
- Long-term analysis - uncover hard-to-find or intermittent issues
- Load studies - verify electrical system capacity before adding loads
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
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.
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.
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.
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.
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.
Fluke 435-II Specifications
| Model | Measurement range | Resolution | Accuracy | |
|---|---|---|---|---|
| Volt | ||||
| Vrms (ac+dc) | 435-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 | 435-II | 0.1 V | ± 0.2% of nominal voltage | |
| Vfund | 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 | 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 435 @ 50 Hz nominal | 42.500 Hz to 57.500 Hz | 0.001 Hz | ± 0.01 Hz |
| Fluke 435 @ 60 Hz nominal | 51.000 Hz to 69.000 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% * | |
| 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° | 1° | ± 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 | |||
*± 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
What's included with the Fluke 435-II
- Fluke 435-II Series of Power Quality Analyzers
Webinar: Facilities Maintenance with Fluke
Proactive maintenance and energy savings strategies are essential for cost savings in facilities.
We’ve teamed up with Fluke to provide you with a thorough discussion on proactive maintenance strategies – approaches, tools, and the proper “health” measurements on critical assets. As managing energy costs are also critical, we will also explore how implementing an onsite compressed air and gas leak detection program, facilities can save tens of thousands of dollars annually and production equipment downtime. The latest test equipment advances have made it possible for users to perform leak inspections with little to no training in a fraction of the time versus conventional tools.
During this short webinar on Facilities Maintenance, we covered:
- Monitoring critical assets with fewer resources
- Bridging the skills gap
- Why are we replacing the same bearings and seals over and over?
- What are the best tools to use?
- How do we justify the cost of the tools and resources?
- How do we start a Proactive Maintenance program?
Webinar: Introduction to Portable Precision Power Analyzers with Fluke
This wideband precision analyzer is accurate enough for the lab, yet it's built for the field. Offering you more freedom than ever before to make high accuracy power measurements wherever you need to. Whether in the lab or in the field. Designed for portability and eliminates the need to carry large, fragile, expensive analyzers into the field, allowing you to make measurements directly at the load in nearly any environment. By measuring directly at the load, you can discover how the equipment operates under real-world conditions, with real-world variables, not just at a test bench or in the lab.
