Line tracking is performed such that 64 samples over one-line cycle are taken. Frequency tracking is performed over the range of 2Hz around the nominal line frequency (50Hz / 60Hz). Harmonic measurements are calculated from these 64 samples. The Simple Logger II records TRMS at a rate of up to eight times per second. The measurement process is performed no more than eight times per second. TRMS calculations are performed on a single line cycle. This means that the input(s) are ignored between measurement intervals. The main advantage of the logger is its ability to perform a variety of recording tasks with easy and intuitive setup from a computer using DataView software.