The log interval defines the time between two successive recorded points when the instrument is recording signal statistics or RMS level statistics. When recording either type of statistics the min, max and average are reset at the beginning of each log interval. Then the instrument observes the signals or levels for the duration of the log interval, and updates the min, max and averages accordingly. At the end of the log interval the selected statistics are written to memory. Then the next log interval is started… and so on until the recording is stopped or the memory is exhausted.

The log interval is only relevant when recording statistics. When recording raw signals the time between two successive samples is simply the sampling period.

The log interval can be adjusted from 125 ms to 2 H in increments of 125 ms.

When recording statistics the amount of memory consumed is inversely proportional to the log interval. The Memory-Depth indicator in the Setup panel automatically calculates the overall recording time as a function of the selection.