From an earlier post
Quote<blockquote>below is from the spec. off of Davis web site:
http://davisnet.com/product_documents/weather/spec_sheets/6510_40_44_50_60_SpecWLWin_Rev_D.pdfArchive Storage Capacity (the amount of time before the archive is completely filled):
1 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . . 42 hours
5 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . . 8 days
10 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 17 days
15 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 26 days
30 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 53 days
60 Minute Archive Interval . . . . . . . . . . . . . . . . . . . . 106 days
120 Minute Archive Interval . . . . . . . . . . . . . . . . . . . 213 days
</blockquote>
Nothing to do, when the logger is full the oldest data will drop off when new data is written so no need to download or clear data logger. I have mine set at 10 min interval and stop Cumulus to run Weatherlink twice a month.
Paul