Fluke 435-II Power Quality and Energy Analyzer

Overview

Fluke 435-II Power Quality and Energy Analyzer designed for industrial electrical systems, with a 127 x 88 mm (153 mm/6.0 in diagonal) LCD (320 x 240 pixels), user-adjustable temperature‑compensated contrast and brightness (200 cd/m2 typ. on AC adapter, 90 cd/m2 on battery). Data logging is supported to an 8GB SD card (SDHC compliant, FAT32 formatted) with support up to 32GB; time and date stamps are provided by an internal real-time clock. Connectivity includes Mini-USB-B, an isolated USB port for PC connectivity, and an accessible SD card slot behind the battery. Main instrument warranty: Three years (parts and labor); accessories: one year. Primary use is power quality troubleshooting, energy auditing and long‑term logging in industrial plants, utilities and commissioning contexts. Typical workflows include harmonic and inter-harmonic analysis (grouping according to IEC 61000-4-7), flicker (Plt, Pst) and mains signaling measurements, trend and transient capture with time‑stamped event recording, and kWh/energy and power loss calculations (energy and loss accuracy and ranges depend on clamp scaling and nominal voltage).