Campbell CR300 Series Operator's Manual page 67

CR300-Series Datalogger
File Control
A feature of PC200W, PC400, LoggerNet, and Device Configuration Utility. It
provides a view of the CR300 file system and a menu of file management
commands.
Operating System (OS)
The CR300 operating system is a set of instructions that controls the basic
functions of the device. The operating system is preloaded into the CR300 at
the factory but can be reloaded or upgraded by using Device Configuration
Utility software or datalogger support software. Follow the procedures outlined
in Section 8.2, Sending an Operating System .
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