In order to keep Natural Gas pipelines operational, compressor stations are located every 50 miles or so. These compressors have critical temperatures that need to be monitored including bearing, lube oil, discharge and suction temperature. Due to the criticality of these temperatures a Safety Instrumented System (SIS) may be implemented to protect the compressor and personnel.
If an SIS is employed, the Class I Div 2/Zone 2 STA Functional Safety Trip Alarm, that is exida certified and SIL 2/3 capable, can provide the logic solver needs for the high-temperature shutdown circuit. The STA offers a simple programming interface, local indication, and retransmission of critical temperatures to a remote host or SCADA system.
Key attributes:
- STA is exida certified and SIL 2/3 capable logic solver
- Simple programming interface vs complex safety PLC
- Provides local indication and auxiliary analog output
