The primary function of a transmitter in a control system is to:

In a control system, the primary function of a transmitter is to convert signals to a suitable format that can be transmitted over distances for monitoring and controlling processes. This is crucial because different devices and systems often operate using different types of signals (like analog, digital, or specific communication protocols). The transmitter ensures that the signal, which represents a physical variable such as temperature, pressure, or flow, is transformed appropriately so that it can be communicated effectively to other components within the control system, such as controllers or monitoring displays.

This conversion can involve amplifying the signal, changing its voltage level, or even encoding it in a way that a particular communication network can use. By doing so, transmitters play a vital role in ensuring that the information regarding the system's status is accurately relayed to the components that rely on this data for making decisions or adjustments in the process.