Fluke 435-II Power Quality and Energy Analyzer


Power quality issues may affect the operation of critical loads and impact on your bottom line negatively. Think of this power quality and energy analyzer as an insurance policy. The user can calculate the cost of wasted energy due to poor power quality, and troubleshoot the source of power quality or motor performance issues. Additionally, it’s designed to provide the user with the data needed to quickly get to the root of the problem.


Capture fast RMS data, show half-cycle and waveforms to characterize electrical system dynamics with this power quality and energy analyzer. Quickly understand the capacity of your existing electrical panels, troubleshoot circuit breaker trips and uncover and monetize energy costs.

  • 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: Captures fast RMS data, show half-cycle and waveforms to characterize electrical system dynamics (generator start-ups, UPS switching etc.)
  • Waveform capture: Captures 50/60 cycles (50/60Hz) of each event that is detected in all modes, without set-up
  • Automatic Transient Mode: Captures 200 kHz waveform data on all phases simultaneously up to 6 kV
  • Fully Class-A compliant: Conducts tests according to the stringent international IEC 61000-4-30 Class-A standard
  • Mains signaling: Measures interference from ripple control signals at specific frequencies
  • Troubleshoot: 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: 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
  • Measure multiple parameters simultaneously to quickly understand overall power quality health
  • View data as simple digital values or more detailed trend graphs that give you fast insight into changes over time, waveforms, and phasor diagrams
  • Organize data in tabular format so you can quickly correlate parameters like magnitude, duration, and time to the issues you are experiencing in your facility.
  • Frontline troubleshooting: Quickly diagnose problems on-screen to get your operation back online
  • Long-term analysis: Uncover hard-to-find or intermittent issues
  • Load studies: Verify the available electrical system capacity before adding loads
  • PowerWave data capture: Capture every waveform for up to 5 minutes along with fast RMS values so you can determine how the voltage, current and frequency values are interacting
  • Power inverter efficiency: Measure the input and output power simultaneously to discover whether the inverter is optimized for its application
  • 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
  • Predictive maintenance: Periodic benchmarking of the power system can help detect and prevent power quality issues before they cause downtime.


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