Here's the source document for the USB logger <https://www.davisinstruments.com/product_documents/weather/spec_sheets/6510_SS.pdf>, you want the section *Data Logger Archived Data* (the serial and IP loggers are the same in this regard)
Gary On Wednesday, 9 October 2019 11:41:18 UTC+10, Joe wrote: > > Correct. The data logger. > > I was assuming that the logger would store more than the two months of > data. So it is storing exactly what it should it seems. > > Well then, I guess it is doing what it is supposed to. > > Well dangit, I figured it would store at least a year of data or two. > > > On Tuesday, October 8, 2019 at 8:31:01 PM UTC-5, gjr80 wrote: >> >> Hi, >> >> By 'dongle' I presume you mean one of the Davis data loggers. If so the >> logger has a fixed memory and stores archive records in a round robin >> fashion (ie once memory is full the oldest record is overwritten with the >> newest). How long a history you can store depends on your archive interval; >> the logger can store 2560 records so at one minute that is a little over 42 >> hours, at five minutes just under nine days and at 120 minutes about seven >> months. The default 30 minute archive period gives about two months of >> recorded history. Sounds like you may have a 60 minute archive period? >> >> And yes on startup WeeWX will download any (previously unseen) history >> from a Davis station. >> >> Gary >> >> On Wednesday, 9 October 2019 11:13:08 UTC+10, Joe wrote: >>> >>> I just installed weewx on a davis2 in a remote location that has been >>> online for 10 years with the DONGLE attached. >>> >>> I started weewx and it only has the last three months of data in the >>> history. >>> >>> Does anyone know why it is not displaying all the previous data on the >>> dongle? >>> >>> Does weewx pull that data by default if it was there, and possibly this >>> means the data has been deleted somehow? THe station owner stated they >>> havent touched anything related to the data. >>> >>> >>> -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/c495c34a-87aa-4609-b4cf-4a3db7e201f6%40googlegroups.com.
