An automatic system for monitoringcontrolling a variable of a machine or metalworking fluid system also achieves cleaning and optionally, a calibration check of the sensor of the variable. The processor core executes instructions of the processor and access data in a memory. If different sources have different recording cycles, or time epochs, that lead to different temporal granularities, then all of the log streams are combined into a single time epoch that is equal to the longest time epoch. The LCCO further comprises a replica scaled bias module supplied from the external voltage source. The electrically conductive containers correspond to first capacitor electrodes. In particular applications, the first region can comprise borophosphosilicate glass, and the second region can comprise either aluminum oxide or doped non-oxidized silicon.