Combustion Control Systems - SAMA Symbols

The complexity of strategies used for boiler combustion control requires a notation that exceeds the standard ISA (Instrumentation, Systems, and Automation Society) Process and Instrumentation Diagrams (P&IDs). The Scientific Apparatus Manufacturers Association (SAMA) developed such a notation and it is commonly used to define combustion control strategy.

The SAMA notation for boiler controls consists of four shapes, a series of letters for tag information and numerous mathematical control algorithms. These components, shown in the tables below, are combined to fully describe complex control logic.