LMG611 Single Channel Precision Power Analyzer

 

Single Channel Precision Power Analyzer as Compact Desktop Device

The LMG611 is the latest addition to the Zes Zimmer LMG600 series Precision Power Analyzers with Dual Path Technology. The LMG611 is the single channel variant including all of the breakthrough innovations of the 1-7 Channel LMG670 and 1-4 Channel LMG640, housed in a compact desktop design with touch screen.

 

DualPath Technology – Simultaneous Narrow- and Broad Band Measurements

In traditional power analyzers the input low pass filter is a compromise between risk of aliasing and loss of high frequency components in the power spectrum. For PWM applications like motor drives, high frequencies contribute significantly to the RMS values. At the same time mechanical power is measured in the fundamental frequencies. With DualPath technology it is possible to measure wide band and filtered simultaneously. The great advantage is that even in changing conditions (even if they are subtle), the values are always from the same time-scale and can be compared in the same accuracy level as the instrument accuracy. This is a unique capability that can not be achieved using conventional (software) filters without sacrificing the accuracy in a high degree.

Features

Measurement Channels
  • Outstanding accuracy of 0.015% of measured value + 0.01% of range
  • Full dynamic range of 500 µA to 32 A / 3 mV to 1000 V per channel available in single instrument
  • Power measurements from standby to full load (max. 32 A) without mechanical changes
  • Analog bandwidth DC up to 10 MHz
  • Gapless sampling up to 18 bit and a minimal cycle time of 30 ms
  • Delay time between V and I input < 3ns, very precise measurements at small power factors (PF) and/or high frequencies
Features
  • Simultaneous measurement of narrow- and broadband values through innovative DualPath architecture
  • Simultaneous capturing of fundamental frequency and broadband RMS values for instantaneous detection of losses, resp. high-frequency components
  • Harmonics and interharmonics up to 2000. order, as required by EN61000-4-7
  • With optional I/O card speed/torque inputs freely configurable for all signal types (analogue, frequency as RS422,TTL or HTL) via menu
  • Flexible scripting tool for custom applications
  • Simultaneous measurement of V, I, P values and harmonics, presentation in tabular or graphical form
  • Signal filters freely configurable by frequency, type and characteristics
  • Synchronization to different frequencies
  • Flicker measurement, interactions between grid and appliance according to EN61000-4-15
User-Interface
  • Large and clearly arranged touchscreen GUI for intuitive handling
  • All instrument features displayed, identical look-and-feel for local and remote operation for quick and easy familiarization
Memory and Interfaces
  • Internal storage of long-term measurements even with shortest cycle-time thanks to integrated mass storage device
  • Excellent connectivity via USB2.0, Gbit-LAN, RS232, and DVI
Miscellaneous
  • Convenient “plug-and-measure” through automated sensor detection
  • no external sensor power supply required
  • 12 months guaranteed calibration interval for minimal service cost and optimal availability
  • Calibration certificate included free-of-charge in first delivery
  • 24 months warranty

Models

LMG611-A LMG611-A for high-precision broadband measurements
High-Precision Channel for power measurements with DualPath functionality, bandwidth DC-10 MHz
best accuracy 0.015% + 0.01%
Measuring inputs and ranges:
1. Voltage directly (V): 3/6/12,5/25/60/130/250/400/600/1000 Vtrms; 3200 Vpk
2. Voltage sensor input (mV): 30/60/120/250/500 (V): 1/2/4 Vtrms; 8 Vpk
3. Current directly (mA): 5/10/20/40/80/150/300/600 and (A): 1.2/2.5/5/10/20/32 Atrms; 120 Apk
4. Current sensor input (mV): 30/60/120/250/500 (V): 1/2/4 Vtrms; 12.5 Vpk
LMG611-B LMG611-B for general purpose measurements
Multi-purpose measurement channel with DualPath functionality, bandwidth DC – 500 kHz
best accuracy 0.05% + 0.02%
Measuring inputs and ranges
1. Voltage directly (V): 3/6/12.5/25/60/130/250/400/600/1000 Vtrms; 3200 Vpk
2. Current directly (mA): 5/10/20/40/80/150/300/600 and (A): 1.2/2.5/5/10/20/32 Atrms; 120 Apk
3. Current sensor input (mV): 30/60/120/250/500 (V): 1/2/4 Vtrms; 12.5 Vpk
LMG611-C LMG611-C for high-precision 50/60 Hz measurements
High-precision measurement channel for 50 Hz applications, bandwidth DC – 10 kHz,
best accuracy 0.03% + 0.01%.
Measuring inputs and ranges:
1. Voltage directly (V): 3/6/12,5/25/60/130/250/400/600/1000 Vtrms; 3200 Vpk
2. Current directly (mA): 5/10/20/40/80/150/300/600 and (A): 1.2/2.5/5/10/20/32 Atrms; 120 Apk
3. Current sensor input (mV): 30/60/120/250/500 (V): 1/2/4 Vtrms; 12.5 Vpk