Voltage & Current Measurement Voltage Transducers Provide an Analog Output Signal Magnetically Isolated from the Primary Voltage Circuit • Full-scale Primary Voltages from ±500V to ±8,000V • Amplitude Accuracy to ±0.2% at dc • Amplitude Frequency Response dc to 500kHz (-3dB) Convert High Voltage Levels in Power Converters to Low Level, Low Impedance Signals that can be Used for Accurate and Safe Test Measurements
LEM CV4
Closed-Loop Hall Current Transducers Provide an Analog Output Signal Isolated from the Primary Current Circuit • Full-scale Primary Currents from ±100A to ±15,000A • Amplitude Accuracy to ±0.3% at dc • Amplitude Frequency Response dc to 300kHz (-3dB) • Common Mode Primary Voltage Isolation • Split Core Versions Available (±2 % at dc) Suitable for Production Line Testing where Long-term Stability and Reliability are Critical
LEM LF
Closed-Loop Fluxgate Current Transducers Generate a Very High-Accuracy Output Signal with Electrical Isolation from the Primary Circuit • • • •
Full-scale Primary Currents from ±60A to ±1,000A Amplitude Linearity to ±0.3ppm at dc Amplitude Frequency Response dc to 300kHz (-3dB) Very Low Noise to <5ppm rms (dc to 50kHz) gives Wide Dynamic Range • Very Low Sensitivity to External Current Conductors For High-accuracy Power Measurements over an Extended Frequency Range
LEM IT Ultrastab
Closed-Loop Fluxgate Current Measurement Systems Very High-Accuracy Current or Voltage Output Signal with Electrical Isolation from the Primary Circuit Optional Heads 600A Lowest fs Current 40A fs Current Range Increment 20A
2,000A 125A 125A
5,000A 2,500A 125A
LEM ITP Ultrastab
Very High-accuracy Calibration and Power Measurements