HT Instruments PQA924 Power and Energy Quality Analyzer

Overview

The HT Instruments PQA924 is a precision power quality analyzer designed for comprehensive monitoring and analysis of electrical networks. Engineered to meet IEC/EN61000-4-30 (Class S) standards, it provides high-resolution data capture, intuitive touchscreen operation, and automated measurement and reporting features. The PQA924 offers both routine power quality assessments and advanced diagnostics capabilities.

Key Features

• Supports up to 386 channels for real-time tracking of frequency, voltage, current, power, and other network parameters across 130 categories
• Advanced harmonic analysis with up to 2225 data points, including 63rd order harmonics, THD%, k-factors, and harmonic power/phases
• Inter-harmonics monitoring with 536 data points covering 63 voltage and current groups, plus THI%
• Energy tracking with up to 24 channels for active and reactive energy consumption
• Flicker level measurement (Pst and Plt) across 6 channels for voltage quality evaluation
• Voltage anomaly detection (dips, swells, interruptions) with 10 ms resolution at 50 Hz
• Fast transient event capture with 1 microsecond resolution
• Inrush current recording for equipment startup analysis
• 6000 A measurement capacity for high-power systems
• Touchscreen interface with auto-configuration and intuitive software
• Class S compliance per IEC/EN61000-4-30 standard

Applications

• Comprehensive power quality studies and network diagnostics
• Harmonic and inter-harmonic analysis
• Voltage disturbance and transient event monitoring
• Energy consumption audits and optimization
• Standards compliance verification and regulatory reporting