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LEM Danfysik Current Transducers, 868-20I  
Tabs
 
The Ultrastab 868-20I Current Transducer is a high stability Current Transducer that is directly mountable on a PCB.

The 868-20I enables isolated measurement of unipolar and bipolar currents in the range of 0-12.5A from DC to 100kHz with a temperature drift less of than 2 ppm/°C. Powered with ±15V it provides an analogue output of ±50mA at FS primary current of ±12.5A.

Output noise and noise feed back to the main conductor are extremely low. A metal housing ensures high immunity against external electrical and magnetic interference.

LEM Danfysik Current Transducer with onbard electronics Comparison

For higher Current Transducers see 866, 867, and Saturn models.

Features
Applications
  • PCB mounted Current Transducer
  • Bipolar – up to ±12.5A primary current with ±50mA output
  • Linearity better than 4ppm
  • Absolute calibration traceable to NIST
  • Overload capability 200%
  • Resolution 0.05ppm of full-scale
  • Compact design (66 x 46 x 64 mm)
  • Temperature drift less than 2ppm/°C
  • Linearity better than 4ppm
  • Bandwidth DC to 100kHz
  • Low noise on the output signal
  • Noise to main conductor < 5µV
  • Feed back element in high performance shim amplifiers
  • Current control element in low noise, high stability micro positioning amplifiers motion controllers
  • Control element for high accuracy, current sources and current calibrators
 
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