The AEMC Simple Logger® II (Model 2126.05) is a single-channel data logger designed for true RMS voltage recording. It samples input 64 times per line cycle with frequency tracking over ±2 Hz of nominal line frequency (50/60 Hz). Harmonic measurements can be computed using DataView® software.

The logger records TRMS values up to 8 times per second, calculating each measurement from a single line cycle. Non-volatile memory stores up to 240,000 measurements. An optically isolated USB port enables safe data transfer. Five LEDs clearly display logger status.

Key Features

• TRMS voltage recording up to 600V AC/DC
• 64 samples per cycle
• Programmable storage rates: 8/sec to 1/day
• 3 user-selectable storage modes
• 240,000 measurement memory
• Powered by standard alkaline batteries
• Isolated USB communication
• Safety ratings: 300V CAT IV, 600V CAT III

Applications

• Surge and sag recording
• Long-term supply monitoring
• Industrial, commercial, residential monitoring
• Voltage harmonics monitoring
• Intermittent voltage problem detection
• Machine monitoring