FAQ: Difference between revisions

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== My heat index/humidex/wind chill is the same as my temperature  ==
== My heat index/humidex/wind chill is the same as my temperature  ==


*These can only be calculated when you have not only your temperature sensor working, but also your humidity sensor must be working for humidex and heat index; and your wind speed sensor must be working for wind chill
*Wind chill only applies when the average wind speed is above 4.8 kph '''and''' (by default in Cumulus as it should really always be set, but this is an option that can be unset) the temperature is below 10 degrees Celsius.   
*Wind chill only applies when the average wind speed is above 4.8 kph '''and''' (by default in Cumulus as it should really always be set, but this is an option that can be unset) the temperature is below 10 degrees Celsius.   
*Heat index only applies when the temperature is above 27 degrees Celsius '''and''' the humidity is above 40%.  
*Heat index only applies when the temperature is above 27 degrees Celsius '''and''' the humidity is above 40%.  
* Humidex does not have any 'cutoff' values, but at low temperature and/or humidity it will give the same figure as ambient temperature.
* Humidex does not have any 'cutoff' values, but at low temperature and/or humidity it will give the same figure as ambient temperature.


If heat index or wind chill is not applicable, Cumulus will set them the same as the ambient temperature.
If heat index or wind chill is not applicable, Cumulus will set them the same as the ambient temperature. You may wish to use a script on your web pages to '''set to null''' heat index, humidex and wind chill when required sensors are not working or when the measure is notapplicable.


== Cumulus is showing a different wind speed compared to my console  ==
== Cumulus is showing a different wind speed compared to my console  ==
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