Hi Gary, Well, I messed that one up ;-)
I should RTFM and get some sleep before posting! Nigel On 18 January 2017 at 22:30, gjr80 <[email protected]> wrote: > Hi Nigel, > > The key is in how StdCalibrate works. From the Users Guide [StdCalibrate] > <http://weewx.com/docs/usersguide.htm#StdCalibrate>: > > "In a default configuration, calibrations are applied to observations from > the hardware. They are not applied to derived calculations since the > StdWXCalculate service runs after StdCalibrate." > > If you have a look at the Hardware Guide under Vantage > <http://weewx.com/docs/hardware.htm#vantage_notes>(in the vantage station > data table) you will see that the vantage driver gets barometer from the > station hardware but pressure and altimeter are calculated in software. > Hence you apply corrections to barometer for the vantage and not pressure > or altimeter as they are derived. So when it comes to pressure the > correction field you use really depends on the hardware. > > Gary > > > On Thursday, 19 January 2017 07:59:52 UTC+10, Devonian wrote: >> >> I have a Davis VP2 station and am setting up my old WS2300 station for my >> father to use. >> >> On the WS2300 I use a small correction for barometer in weewx.conf in >> section StdCalibrate --> Corrections >> I use *pressure = pressure + 0.02* and it corrects the web page reading >> >> However, if I use the same *pressure = pressure + 0.02* on my VP2 >> station it is ignored and doesn't correct the reading >> >> Now, if I use *barometer = barometer + 0.02* it is recognised and the >> correction applied. >> >> Possible bug somewhere? >> >> This is on two completely independent, clean setups/installs using weewx >> setup.py v3.6.2 on a clean Debian Jessie headless install. >> >> Nigel. >> > -- > You received this message because you are subscribed to a topic in the > Google Groups "weewx-user" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/weewx-user/9sAuzfi21iQ/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- 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.
