what is instrumentation

v  Instrumentation is art and science of measurement and control.

v  It makes available the necessary process information [indication / trending / status] at a predetermined destination in a predetermined form.

v  It also controls the parameter within specified limits / at specified value.

v  Instrumentation provides a means to the plant operator to operate the plant safely, continuously, and consistently with optimum productivity.

v  It minimizes the human element in the plant operation.