An associated device to ISAS3

SISO3 is an associated device to ISAS3. It electrically isolates the intrinsically safe circuit from non-intrinsically safe circuit such as the data acquisition system. SISO3 can be installed in ATEX zone 2 environments. It limits the current, voltage, power and pulse energy supplied to the integral ISAS3 preamplifier to safe level even in case of two worst failures.