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Darrah Electric
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Published 07/18/2018

LEM finishes its range of digital output versions of HO and HLSR open-loop Hall Effect current transducers with analog to digital (A/D) conversion performed by an on-board sigma-delta modulator, giving a 1-bit serial bit stream output. These new components for nominal current measurements of 16, 32, 40, 50, 80, 100, 120, 150, 200, 250 ARMS in 4 different mechanical designs (PCB and panel mounting) provide up to 12-bit resolution with 20 kHz bandwidth.
Key points:
- Compact open loop Hall effect current transducers with a digital output from a
sigma-delta modulator
- 12-bit effective resolution with 20kHz bandwidth
- 10MHz clock frequency
- Same footprint and precision as LEM’s successful HO and HLSR analog series
- Additional overcurrent detection output

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