The IsoBlock Current-FG is a sensor designed for high-quality isolated current measurements for applications up to 50 Amperes. The IsoBlock Current-FG module provides 1100V primary-to-secondary isolation, which allows users to monitor a miscellaneous of currents at different potentials.
The IsoBlock Current-FG is an inline sensor and uses Flux-Gate methodology to measure the current flowing through the input conductor. In essence, this technique works by placing a toroid with a high number of turns (secondary) around the input current path (primary), while a close-loop circuitry controls the current through the secondary to null out the magnetic field inside the toroid. 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.
The compact form factor of the IsoBlock Current-FG module allows users to setup high channel density monitoring systems, making it ideal for deployed and portable systems.