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Valve controller digital - FIELDVUE™ DVC6200 SIS
The operation of many industrial processes involves inherent risk. Instrumented protection systems are specifically designed to reduce the severity of the impact of an emergency event. These systems, such as Safety Instrumented Systems (SIS), are designed to monitor a process for potentially dangerous conditions. During an emergency event, the SIS instrument activates the valve to move the process to a safe state.What happens if the valve does not move when an emergency event occurs? Personnel safety, equipment damage, and environmental protection could be at serious risk.
Traditionally, a pneumatic test panel located near the valve provides a means to exercise the valve to ensure operation when called upon. However, the procedures to test the valves are labor-intensive, cumbersome, and may require the valve to be locked in a fixed position or bypassed.