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Pressure Alarm since upgrade

Posted: Sun 04 Sep 2022 11:42 am
by flort
I upgraded to Build 3204 a couple of days ago and when I restarted Cumulus it triggered a Pressure alarm for drop in pressure by more than 5 hPa/hr. At the time the pressure was dropping quite quickly (although not at that rate) so I didn't think too much of it. Yesterday I restarted Cumulus again and got the same alarm and by now the pressure was on the way back up.

I've now just upgraded to Build 3205 and upon restart I am still getting the Pressure alarm. I've got no idea what is triggering this. I turned on debug but I can't see anything in there pointing to the reason. I've attached the MXdiag file and would appreciate if someone could have a look at it for me.

Regards,
Trevor

Re: Pressure Alarm since upgrade

Posted: Sun 04 Sep 2022 1:28 pm
by philpugh
Just a thought.

The log shows it's not getting any historic data from the weatherlink - is the alarm triggered by the first valid reading which may be above whatever CMX is taking as the default value?

Re: Pressure Alarm since upgrade

Posted: Sun 04 Sep 2022 5:12 pm
by mcrossley
EDITED: I have found a solution to this issue which occurs when the trend values for temperature and pressure are calculated before any temperature or pressure data has been read from the station or catch-up.

Re: Pressure Alarm since upgrade

Posted: Sun 04 Sep 2022 10:05 pm
by flort
Thanks. Appreciate you looking at this.

Regards,
Trevor