The IsoBlock I-FG is a 4 (four) channel module designed for low cost isolated current measurements up to 50 Amperes. It provides 1200V primary-to-secondary isolation, which allows users to monitor a miscellaneous of currents at different potentials.
The IsoBlock I-FG uses Flux-Gate methodology to measure the current flowing through the input conductor. In essence, this technique works by placing some sensing circuitry around the input current path (primary), while a close-loop circuit controls the current through the secondary to null out the magnetic field. The input current is then obtained by multiplying the current from the control circuitry by the number of turns of the secondary. This is followed by an anti-aliasing filter and a conditioning stage to output a ±10V signal (5V optional).
The compact form factor of the IsoBlock Current-FG module allows users to setup high channel density monitoring systems.