Chroma 66204 Digital Power Meter

Overview

The Chroma 66204 is a 4-channel digital power meter designed for comprehensive single-phase and multiple-phase AC power measurements. It employs state-of-the-art DSP technology with 16-bit analog/digital converters sampling at up to 200 kHz, delivering industry-leading accuracy for complex power analysis applications.

With four independent channels, the 66204 excels at simultaneous multi-point measurements, making it particularly valuable for PV inverter testing and power electronics characterization. The meter supports flexible wiring configurations (1P2W, 1P3W, 3P3W, 3P4W) and complies with international standards including ENERGY STAR, IEC 62301, and ErP.

Key Features

• 4 independent measurement channels for simultaneous operation
• Voltage ranges: 15, 30, 60, 150, 300, 600 Vrms
• Current ranges: 0.005 to 20 Arms with 5 mA minimum
• DC to 10 kHz frequency range
• 0.1 mW power resolution
• GPIB and USB interfaces for remote control and data logging
• 7-segment LED front panel readouts
• THD and harmonic distortion measurements up to 50 orders
• Inrush current and accumulated energy measurements
• User-defined PASS/FAIL criteria with automatic indication
• Dual current shunt design for high accuracy across extended ranges
• Support for external shunt and CT sensors for higher current measurements
• Full support for wiring modes: 1P2W, 1P3W, 3P3W, 3P4W

Applications

• PV inverter efficiency testing and multi-channel characterization
• Simultaneous power measurement at multiple system points
• DC input and three-phase AC output power analysis
• Production testing and quality control verification
• R&D applications in power electronics development
• ENERGY STAR and ErP compliance testing