Each logger has an internal Real Time Clock. This clock is updated every second. During logging, the time stamps of the data samples are set by the Real Time Clock.
When you first connect a new battery to the logger, or when the logger is in power down state, the real time clock is not running. When the real time clock is stopped, and you setup your logger to log, the SUPCOLog software automatically matches the logger clock to your computer’s clock. You can also manually set the logger’s real time clock, using the SUPCOLog software
To set the logger’s Real Time Clock, select Set Clock… from the Logger menu . Make sure that “Use Windows Clock” is unchecked, then enter the current date and time in the appropriate fields. If the “Use Windows Clock” is checked, the logger's real time clock will be matched to your Windows clock.
Note: You cannot set the Real Time Clock while logging is in progress.