The greatest shift in modern process environments is the move from (break-fix) maintenance to predictive maintenance enabled by digital diagnostics. Self-Validating Sensors:
+-------------------------------------------------------------------------+ | BASIC PROCESS CONTROL SYSTEM (DCS) | | [Sensors] ---------> [DCS Controller] ---------> [Control Valves] | +-------------------------------------------------------------------------+ || (Physically & Logically Segregated) || +-------------------------------------------------------------------------+ | SAFETY INSTRUMENTED SYSTEM (SIS) | | [SIL Sensors] -----> [Safety Logic Solver] ----> [Emergency Shutdown] | +-------------------------------------------------------------------------+ Safety Integrity Levels (SIL)
The "modern process industry" no longer distinguishes between the instrument and the valve. They are a .
If you are looking to upgrade your facility or optimize your current instrumentation, I can help you focus on the next step.g., Coriolis flow meters vs. Magnetic meters)?
The most powerful tool for achieving maintenance-free goals is the predictive capability of smart instrumentation.
The goal is to keep the total loop gain constant, which is the product of four gains: process gain, sensor gain, controller gain, and . Proper valve selection must consider capacity, shutoff capabilities, material compatibility, and reliability.
Automatically opens to vent pressure or maintain cooling (e.g., coolant jackets, relief paths).
The rate of material moving through the system, calculated using magnetic, Coriolis, ultrasonic, or vortex meters.
For a control valve, configuration includes setting: