The Fluke 435 Series II Three-Phase Power Quality and Energy Analyzer is a high-performance diagnostic instrument designed for comprehensive power quality analysis, energy auditing, and electrical system troubleshooting in three-phase electrical installations. It provides accurate measurement and logging of a wide range of electrical parameters to help engineers, technicians, and maintenance professionals identify and diagnose power quality issues such as harmonics, unbalance, transients, dips, swells, and inefficiencies caused by poor quality supply or loads. Built for both field and plant environments, this analyzer combines a rugged, handheld design with advanced measurement capabilities and powerful data logging. It supports in-depth analysis of voltage and current waveforms, power and energy values, and system health indicators, enabling users to make informed decisions that improve performance, reliability, and energy efficiency. Technical Details Specification Details Product Name Fluke 435 Series II Three-Phase Power Quality and Energy Analyzer Analyzer Type Three-phase power quality analyzer and energy logger Voltage Measurement Measures AC and DC voltage up to 1000 V (phase to neutral) with high accuracy and resolution Current Measurement Four current channels (three phases plus neutral), supports flexible current probes with large range up to several thousand amperes Frequency Range Accurate frequency measurement with high resolution, suitable for 50 Hz and 60 Hz systems Power Parameters Active, reactive, and apparent power; power factor and demand values Energy Logging Records energy values (kWh, kVAh, kvarh) for assessment and audit purposes Harmonics & Distortion Harmonic and inter-harmonic analysis up to 50th order for voltage and current Unbalance Measurement Voltage and current unbalance indices Flicker & Mains Signaling Flicker (Plt, Pst, etc.) and mains signaling measurements Transient & Events Captures transient events, dips, swells, and interruptions automatically Logger Functionality Stores long-term data logging of multiple parameters with selectable intervals Display High-resolution color display for waveforms, trends, and numeric data Safety Ratings Rated for high-voltage industrial environments (600 V Category IV / 1000 V Category III) Power Supply Rechargeable battery with hours of field operation Data Export Stores data internally and supports export for detailed analysis Environmental Rugged design for field use; typical industrial operating ranges
