What is analog circular chart recorder?

An analog circular chart recorder is a device used to continuously record data over time on a rotating circular chart. It typically employs a pen that moves in response to changes in the measured variable, such as temperature, pressure, or humidity, creating a graphical representation of the data. The circular chart enables the visualization of trends and patterns, making it useful in various applications, including industrial monitoring and laboratory experiments. Unlike digital recorders, analog chart recorders provide a tangible, physical record of data that can be easily interpreted.