If the temperature is below setpoint, the output will be on longer; if the temperature is too high, the output will be off longer. The third controller type provides proportional with integral and derivative control, or PID.
Amplifier figures of merit. In electronics, the figures of merit of an amplifier are numerical measures that characterize its properties and performance. Figures of merit can be given as a list of specifications that include properties such as gain, bandwidth, noise and linearity, among others listed in this article. Figures of merit are important for determining the suitability of a particular amplifier for an intended use.
MPR Ratings vs MERV Ratings. Although I wasnât able to find a chart created by the manufacturer I did collect some data from the web and created this chart to compare the two rating systems. The difference between the two rating systems is MPR measures .3 to 1 micron particles and MERV measures .3 to 10 micron particles.