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Process shut down


The purpose of the Process Shutdown System (PSD) is to register abnormal operational conditions in the process, take necessary action to protect equipment and personnel, and to prevent uncontrolled release of hydrocarbons.

The system receives information regarding temperature, pressure and level through digital and analogue inputs. The Process Shutdown System configuration is determined by a risk analysis for the installation and is often influenced by availability requirements. The analysis can be used as a direct guideline for choosing the PSD configuration.

Process Shutdown System configurations

  • Single Process Shutdown
  • Redundant Single board controller
  • Redundant Single board controller and input/output boards

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