Campbell CR300 Series Product Manual page 129

7. Ensure Datalogger Operating System Files (*.obj) is selected in the files of type list, select
the new OS .obj file, and click Open to update the OS on the data logger.
Note the following precautions when sending as a program:
Any peripherals being powered through the SW12 terminal will be turned off until the
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program logic turns them on again.
Operating systems are very large files. Be cautious of data charges. Sending over a direct
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serial or USB connection is recommended, when possible.
16. CR300 series maintenance 116