Values of the amount of compressed air (flow) consumed as a function of time, presented in a graph of the variability of consumption over time and/or in a table.
When presented together with the operating pressure of the measured air flow it makes more sense to analyse an application. The data of both values (Flow and pressure) needs to be sampled so that correct observations can be made of the data. A measurement sampled less frequently than every 10 seconds may make it difficult to interpret events in the system being measured. It is recommended to sample and record data every 1 second for comprehensive analysis of a system.