What type of indicator requires a transmitter to send the process variable measurement to other instruments?

A remote indicator is specifically designed to receive process variable measurements from a transmitter. Unlike local indicators, which display measurements directly at the location of the measuring device, remote indicators rely on the data sent from a transmitter to represent the status of the process. This ability allows remote indicators to be placed in separate locations, often in a central control room or monitoring area, making them ideal for overseeing processes from a distance.

In practice, a transmitter converts the physical measurement (such as temperature, pressure, or flow) into a standardized output signal (like 4-20 mA or a digital signal). The remote indicator then reads this signal and displays the value, enabling operators to monitor the process without being physically present at the measuring point. This setup enhances operational efficiency and enables better decision-making based on real-time data from multiple sources.