To update your CellLog 8S, first install the USB drivers which are available on the included CD or for download from the following link. The PowerLog does not require a driver download.
Next, download and install the upgrader software (compatible with Windows XP, Vista, Windows 7, & Windows 8):
Then download and install the update file for your CellLog 8S or PowerLog 6S using the included USB cable:
The latest version of LogView, version 18.104.22.1681 (released April 29, 2014), for use in downloading log files and graphing data is available for download here:
A simplified alternative data reading/display program for CellLog 8S or PowerLog 6S is now available (thanks AJH):