Overview

This document provides detailed technical specifications, features, and applications of ZES ZIMMER precision power analyzers, energy counters, sensors, and related equipment for power measurement, energy monitoring, and EMC testing. The products cover a wide range of frequencies, accuracies, and power ranges suitable for industrial, laboratory, and compliance testing environments.

1. Power Analyzers

LMG Series

• LMG500: Modular device with 1-8 power channels, frequency range DC to 10 MHz, basic accuracy 0.03%. Voltage range 3V-1000V, current 20mA-32A. Supports sensor inputs for current and voltage channels. Interfaces include RS232, IEEE488.2, Ethernet, USB. Features graphic color TFT display (320x240). Applications include high-speed frequency inverters, wideband loss power measurement, high-frequency motors, electronic ballasts, and pulsed high voltage signals. Notable for very low input delay (<3ns) and high dynamic range.
• LMG450: 4 power channels, frequency range DC to 20 kHz, accuracy 0.1%. Voltage 6V-600V, current 0.6A-16A (60A peak). Interfaces RS232, IEEE488.2, USB. Color LCD display (320x240). Suitable for general power electronics and mains analysis, including motor-related measurements at frequency inverter outputs. Features include formula editor, vector diagram, harmonics analysis, and smart current sensor inputs.
• LMG95: Single channel, frequency range DC to 500 kHz (up to 1 MHz optional), accuracy 0.03%. Voltage 6V-600V, current 0.15A-20A (960A peak). Interfaces RS232, IEEE488.2, PC-Card. Monochrome LCD display (240x128). Designed for high precision power measurement at switched devices and calibration reference. Complies with EMC standards EN61000-3-2/-3, harmonics EN61000-4-7, flicker EN61000-4-15.
• LMG90 Series: Compact devices for power loss measurement and quality control. LMG90-1 covers DC to 10 kHz, accuracy 0.05%, voltage 10V-1000V, current 100mA-30A. LMG90-2 extends frequency to 50 kHz, voltage 1V-1000V, current 10mA-30A. Interfaces include RS232, IEEE488. Display types vary from alphanumeric fluorescent to LCD. Applications include transformer losses, household appliances, and power electronics in mid-frequency ranges.

SYS61K Systems

• SYS61K-3PL50: 3 channels, DC to 10 MHz, accuracy 0.03%, voltage 3V-1000V, current 20mA-32A. Interfaces RS232, IEEE488.2, USB. Color TFT display (320x240). Designed for EMC test systems compliant with EN61000-3-2/-3, harmonics EN61000-4-7, flicker EN61000-4-15. Modular packages include power meters, AC power sources, reference impedance, and evaluation software.
• SYS61K-1(3)PL95: 1 or 3 channels, DC to 50 kHz, voltage 6V-600V, current 0.15A-20A. Monochrome LCD display (240x128). Suitable for integration in EMC test setups.

2. Sensors and Current Transformers

• HST High Voltage Divider: 1-3 channels, DC to 1 MHz, accuracy 0.05%, voltage range 3kV-30kV, aluminum case.
• PSU Precision Current Transformer: 1 channel, DC to 1 MHz, accuracy 0.02%, current 200A-5000A, plastic sensor head.
• AC Current Transformer: 1 channel, 15 Hz to 5 kHz, accuracy 0.02%, current 750A, plastic sensor head.
• CLAMP Current Transformer: 1 channel, 2 Hz to 50 kHz, accuracy 0.15%, current 40A-3000A, plastic clamp sensor.
• WCT Wideband Current Transformer: 1 channel, 30 Hz to 1 MHz, accuracy 0.25%, current 100A-1000A, plastic case.
• HALL Sensor Current Transformer: 1 channel, DC to 200 kHz, accuracy 0.3%, current 50A-2000A, plastic sensor head.
• FLEX Rogowski Current Transformer: 1 channel, 10 Hz to 5 kHz, accuracy 2.5%, current 500A-3000A, flexible sensor head.

3. Data Logging and Software

• NDL5 Data Logger: Supports up to 8 channels, frequency up to 10 MHz, accuracy up to 0.03%, voltage up to 1000V, current 32A or 12kV/5kA with external transformers. Interfaces include Ethernet and serial. Features event-dependent control inputs/outputs, internal hard disk up to 80GB for long-term disturbance analysis, suitable for industrial processes and wind energy plants. Compatible with LMG500/450/95 series and ZES ZIMMER PC software TERM-L5 for visualization and evaluation.

4. Energy Counters and Displays

• Various models (PM303d8, PM325, RM350, PM380, PM396, EZI1) designed for energy measurement, monitoring, and control tasks in production and factory environments.
• Features include pulse relays, Modbus RS485 communication, LCD displays with backlight, panel or rail mounting, and optional internet connectivity.
• Applications cover energy management, quality control, and decentralized power and energy registration.

5. Applications and Special Features

• Devices are suitable for EMC compliance testing (EN61000-3-2/-3, EN61000-4-7, EN61000-4-15), power electronics, motor and frequency inverter measurements, transformer loss analysis, household appliance testing, and industrial disturbance analysis.
• High precision and wide dynamic range enable accurate measurement of active, reactive, apparent power, harmonics, flicker, and transient events.
• Modular designs and extensive interface options facilitate integration into complex test systems and automation environments.

6. Mechanical and Display Details

• Devices come in desktop or panel/rail mount cases with dimensions and mounting brackets suitable for 19" racks.
• Displays range from monochrome LCD to color TFT with resolutions up to 320x240 pixels, supporting graphical visualization of measurement data.

Critical Parameters and Limitations

• Accuracy varies by model and application, with best precision around 0.03% for high-end devices.
• Frequency ranges span from DC up to 10 MHz depending on the instrument.
• Current and voltage ranges are broad but must be matched with appropriate sensors and transformers.
• Some devices require external sensors or transformers for extended ranges.

Summary

ZES ZIMMER offers a comprehensive portfolio of precision power analyzers, sensors, data loggers, and energy counters designed for high accuracy measurement and analysis of electrical power parameters across a wide frequency and power range. The products support advanced features such as harmonic and flicker analysis, EMC compliance testing, and long-term disturbance recording, making them suitable for industrial, laboratory, and compliance applications. Modular designs and extensive interface options enable flexible integration into complex measurement and test systems.