MTL700 Series shunt-diode safety
barriers are 1- or 2-channel devices which
pass an electrical signal in either direction
without shunting it, but limit the transfer of
energy to a level that cannot ignite
explosive atmospheres. Connected in series
with the signal transmission lines on a
process plant, they protect hazardous-area
wiring and equipment against faults
occurring in the safe area, and enable a
wide range of measurement and control
operations to be carried out simply and
inexpensively by intrinsically safe
techniques. Conventional wiring and,
frequently, standard transducers can be
employed in the hazardous area, and can
be worked on for maintenance or
calibration purposes without further
precautions. Safe-area equipment needs no
certification and can be modified or
extended as required.