ZES Zimmer LMG641

LMG641 – High-Precision Power Analyzer

The LMG641 Power Analyzer delivers exceptional measurement accuracy and comprehensive power analysis in a single instrument. Its innovative DualPath™ architecture enables simultaneous analysis of narrowband, full-spectrum, and harmonic signals, providing instant insight into power quality, efficiency, and high-frequency losses. Designed for demanding laboratory, R&D, production, and compliance testing, the LMG641 combines high-speed acquisition, wide dynamic range, and intuitive operation.

Key Features

Measurement Performance

• Outstanding accuracy of ±0.015% of reading + 0.01% of range
• Wide dynamic range: 500 µA to 32 A and 3 mV to 1000 V per channel
• Measures power from standby mode to full load (up to 32 A) without changing measurement ranges
• DC to 10 MHz analog bandwidth
• Modular configuration with 1 to 4 power measurement channels, or 3 channels + 1 optional I/O card
• 18-bit gapless sampling with a 30 ms measurement cycle
• Ultra-low voltage/current input delay (<3 ns) for highly accurate measurements at low power factors and high frequencies

Advanced Analysis

• Simultaneous narrowband and broadband measurements using DualPath™ technology
• Simultaneous acquisition of fundamental frequency, broadband RMS, and high-frequency components
• Harmonic and interharmonic analysis up to the 2000th order, compliant with EN61000-4-7
• Simultaneous measurement of Voltage, Current, Power, and Harmonics with graphical and tabular displays
• Configurable signal filters by frequency, filter type, and characteristics
• Synchronization with up to four independent frequencies
• Flicker measurement according to EN61000-4-15
• Optional I/O module with configurable speed and torque inputs supporting analog, RS-422, TTL, and HTL signals
• Flexible scripting environment for customized measurement and automation

User Interface

• Large, intuitive touchscreen display
• Consistent interface for both local and remote operation, minimizing learning time

Memory & Connectivity

• Integrated mass storage for long-term data logging, even at the shortest sampling intervals
• High-speed interfaces including USB 3.0, Gigabit Ethernet, RS-232, and DVI

Additional Benefits

• Automatic plug-and-measure sensor recognition
• No external sensor power supply required
• 12-month guaranteed calibration interval for reduced maintenance costs
• Factory calibration certificate included with every new instrument