Muri,Diagnosing troubles in the plant from instruments and annuciation.pptx

Diagnosing troubles

1. Function of instruments *They indicate or display real time measurement of different values like current ,voltage, pressure ,temperature , frequency , vibration etc. *These values are important for the operator for normal and corrective action Annunciation *They provide immediate visual indication in alarm condition along with audible sound to call attention for any abnormal condition of equipment and system. Importance of annunciation *To ensure safety and prevent hazards *To prevent measure failure *System and process correction *To draw Attention of operator or remote equipment monitoring