One question that we’re frequently asked is this: “What happens to my ELITEpro XC during a power outage?” The ELITEpro XC Portable Power Data Logger has 16 MB of non-volatile memory. It’s a line-powered device, which means that it’s powered by the L1 to L2 voltage under measurement. During a power outage, the meter ceases to be energized because it’s powered by the voltage in the panel under measurement. Although the logger stops recording, the built-in memory means the logger maintains all its records and settings. Once power is restored, the meter will continue to record. There is a feature in ELOG software to help with this scenario called “Fill Missing Records.” This feature detects gaps in the time sequence of the data and fills the missing records with 0 values. This feature is useful any time there are gaps in the time stamp records. If you have any other technical questions, please do not hesitate to contact our Tech Support department at email@example.com or by clicking the Support button below.