GSI127 Key Features
Dual-mode signal conversion
GSI127 supports B5 mode direct voltage conversion (-1 V/V), eliminating external amplification circuits and adapting to short-distance 3-wire sensors (such as LVDT displacement probes).
Industrial-grade safety architecture
Epoxy potting and 4 kVRMS isolation barrier suppress 10 kV surge shock;
ATEX/IECEx certified, compatible with Zone 0 sensors and Zone 2 host cabinet deployment.
Intelligent diagnosis and reliability
Built-in SIL 2 level fault detection circuit, real-time feedback on sensor power supply status (open circuit/short circuit), reducing the risk of false operation of safety systems.
Compact and easy to deploy
Pluggable terminals and DIN rail clip design support hot-swap maintenance and reduce downtime.
GSI127 Application Cases
North Sea offshore drilling platform
Equinor deployed 48 GSI127 A2-B5 in the compressor vibration monitoring chain, isolating the eddy current probe signal, withstanding salt spray and low temperature of -15°C, and the 10-year failure rate is less than 0.5%.
German combined cycle power plant
Siemens Energy equipped the SGT-800 gas turbine with GSI127 444-311-000-031modules to isolate the CPxxx dynamic pressure sensor, eliminate the ground noise of the DCS system, and reduce the false alarm rate by 42%.
Safety transformation of US chemical plant
Dow Chemical replaced the old Zener barrier with GSI127 444-311-000-031 ‘s A2-B5 in the chlorine reactor area, simplified the safety circuit design through SIL 2 certification, and saved 30% of compliance costs.
