Low readings of zero after startup
Posted: Sun 15 Jan 2023 12:49 pm
Hello.
I have recently upgraded to Cumulus MX after a transmitter swap (the old one didn't survive the rapid warming after last month's cold spell) having previously used Cumulus 1 for 8 years.
The upgrade went well and I'm loving the upgraded Cumulus but I have noticed one recurring problem in the last couple of weeks:
I shut down my PC from time to time and it is usually off overnight. When I restart, Cumulus extracts the overnight data from the receiver's data logger. My data logger is set to record every 10 minutes (on my Fine Offset ws1093).
If however, I go to bed just before midnight and switch off the PC, upon restart, Cumulus seems to think that the following day's low is zero (at midnight) for the following:
Temperature
Humidity
Pressure
Apparent Temperature
Wind Chill
Dew Point
Feels Like
I can also see the zero readings in dayfile.txt.
The zero figure doesn't get recorded in my all-time high and low 'records' but it does appear in my 'this period' records and shows in my graphs (presumably as these must get their data from dayfile.txt).
I think the issue is the fact that I switch off just before midnight (probably between 11.50pm and midnight thinking about my 10-minute logging interval). It certainly doesn't seem to be an issue if I shut down after midnight.
Any ideas on how to stop this behaviour other than avoiding going to bed just before midnight? I searched the forum and found that somebody was having a similar problem in 2010 with Cumulus 1 but it never affected me until I upgraded to MX.
Am I correct to assume that I can 'fix' the zeros in the graph and in 'this period' records by editing dayfile.txt?
Many thanks,
Kroma
I have recently upgraded to Cumulus MX after a transmitter swap (the old one didn't survive the rapid warming after last month's cold spell) having previously used Cumulus 1 for 8 years.
The upgrade went well and I'm loving the upgraded Cumulus but I have noticed one recurring problem in the last couple of weeks:
I shut down my PC from time to time and it is usually off overnight. When I restart, Cumulus extracts the overnight data from the receiver's data logger. My data logger is set to record every 10 minutes (on my Fine Offset ws1093).
If however, I go to bed just before midnight and switch off the PC, upon restart, Cumulus seems to think that the following day's low is zero (at midnight) for the following:
Temperature
Humidity
Pressure
Apparent Temperature
Wind Chill
Dew Point
Feels Like
I can also see the zero readings in dayfile.txt.
The zero figure doesn't get recorded in my all-time high and low 'records' but it does appear in my 'this period' records and shows in my graphs (presumably as these must get their data from dayfile.txt).
I think the issue is the fact that I switch off just before midnight (probably between 11.50pm and midnight thinking about my 10-minute logging interval). It certainly doesn't seem to be an issue if I shut down after midnight.
Any ideas on how to stop this behaviour other than avoiding going to bed just before midnight? I searched the forum and found that somebody was having a similar problem in 2010 with Cumulus 1 but it never affected me until I upgraded to MX.
Am I correct to assume that I can 'fix' the zeros in the graph and in 'this period' records by editing dayfile.txt?
Many thanks,
Kroma