ZES ZIMMER LMG600 Series Power Analysers

The ZES ZIMMER LMG600 Series (now a Rohde & Schwarz company) represents the pinnacle of precision power analysis. Designed to overcome the technical limitations of traditional power meters, this series provides a modular, high-performance platform for complex electrical environments ranging from automotive hybrid drives to renewable energy systems.

The DualPath Advantage
Traditional analysers often force a compromise between broadband measurement and filtered harmonic analysis. The LMG600 Series eliminates this trade-off through its innovative DualPath architecture, which allows for:

• Simultaneous Processing: Capturing both narrow-band and broadband values in a single measurement cycle.
• Instantaneous Loss Detection: Simultaneous capturing of fundamental frequency and broadband RMS values to identify high-frequency components and power losses.
• Elimination of Aliasing: High-quality FFT calculations without the risk of unnoticed signal deviations common in single-path systems.

Key Series Features

• Extreme Precision: Outstanding accuracy of 0.015% of measured value, with an analogue bandwidth ranging from DC to 10 MHz.
• High-Order Harmonic Analysis: Analysis of harmonics and interharmonics up to the 2000th order, fully compliant with EN61000-4-7.
• Low Power Factor Accuracy: A delay time between voltage and current inputs of <3ns, enabling precise measurements even at very small power factors.
• Intuitive Interface: A large, clearly arranged touchscreen GUI that maintains a consistent “look-and-feel” for both local and remote operation.
• Flexible Connectivity: Equipped with USB 3.0, Gigabit LAN, RS-232, and DVI for seamless data integration.

Modular Configuration

• LMG611: A specialised single-channel solution for targeted analysis.
• LMG641: Supports 1 to 4 power measurement channels (or 3 channels + 1 I/O card).
• LMG671: The flagship model, supporting up to 7 channels with multiple channel types (S, A, B, or C) optimised for high-precision, broadband, or DC-specific measurements.