Am Montag, 29. August 2016 22:05:11 UTC+2 schrieb mwall: > > > > On Monday, August 29, 2016 at 3:46:48 PM UTC-4, Roland Ehle wrote: >> >> Seems, as if you got it. I have 2 empty entries in the database for >> pressure and barometer: >> >> 1472494380|29.3797991730656|30.1131380980191 >> 1472494500|| >> 1472494800|| >> 1472495100|29.3857058476078|29.3857058476078 >> >> Is it the station, that does not provide values? >> > > > what altitude is entered in your station? > > what is the sea level pressure reported by the station console? > > what is the sea level pressure reported by other stations near your > station? > > the station reports pressure two different ways. in historical records > (D2 packets, only during read of historical data), it reports a single > value. the driver interprets this value as 'pressure', i.e., the absolute > gauge pressure. in pressure packets (D6 packets, one every 900 seconds), > it reports two values. the driver interprets these as 'pressure' and > 'barometer'. > > so when weewx reads historical data, it calculates the barometer value > from the pressure in the historical record. but when weewx reads current > values, it simply reports the pressure and barometer values it reads from > the hardware. > > i suspect the conversion from gauge pressure to barometric pressure is not > being done correctly on historical records. > > the empty values are to be expected, since the wmr300 only reports > pressure every 900 seconds. it looks like your archive interval is 300 > seconds, so i would expect pressure and barometer values every third > archive record. > > please post the entire output from the database query - we need to see the > values when the archive records came from the wmr300 logger, not generated > by weewx. > > to find out exactly what is happening, do the following: > > 1) set debug=1 in weewx.conf > 2) set debug_decode=1 in the [WMR300] section in weewx.conf > 3) stop weewx > 4) wait for 15 minutes or so (enough time to let new data accumulate in > the wmr300 logger) > 5) start weewx > > capture the log output (there will be a lot). > > m >
Thanks for the tipps and your help, both is highly appreciated. I currently have no physical access to my station, so please accept a few days delay for my answer. Regards, Roland -- 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]. For more options, visit https://groups.google.com/d/optout.
