Think of the Fluke II Power Quality and Energy Analyzer as your insurance policy. The Fluke Series II Power Quality and Energy Analyzer is the world's. 3 Fluke Corporation Fluke Series Three-Phase Power Quality Analyzers. Inrush function automatically triggers off of current, and captures start up measure-. Replaced by the NEW Fluke Series II Power Quality and Energy Analyzer. These new units offer enhanced features like an Energy loss calculator and more.