The GSI 127 is a device manufactured by Megitt Sensing Systems Vibro-Meter product line. It is a device that have the galvanic separation unit.
The unit is applicable for operation with the charge amplifiers and signal conditioners used by the majority of measurement.
It has a high rejection of frame voltage that varies in µA to mV conversion for long-distance (2-wire) signal transmission and the V to V conversion for short-distance , (3-wire) signal transmission and a certified for use in potentially explosive atmospheres.
In addition, the GSI 127 rejects a large amount of the frame voltage that can introduce noise into a measuring chain.