Hello, my friend! The goal of this article is to clarify "What is 'annunciator'" by answering frequently asked questions.
Did you know the short answer is…
A signaling apparatus which operates electromagnetically and serves to indicate visually, or visually and audibly, whether a current is flowing, has flowed, or has changed direction of flow in one or more circuits.
An annunciator is an array of indicator lights and associated circuitry designed to secure a human operator’s attention by blinking and sounding an audible buzzer when a process changes into an abnormal state.
The purpose of an alarm system (annunciator) is to bring attention to an abnormal or unsafe operating condition in the plant.
Traditional annunciator used discrete alarm modules for this purpose.
These dedicated hardware units are diminished in numbers, but they are used in installations where simplicity is desired or where separation from the basic process control system is required for safety reasons.
Thanks for reading up to this point and I hope you have great day.
Note to self: Draft for a new post.
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