[hvalentim]

Como evitar que isto aconteça?

Não se esqueça ainda de definir no Cumulus os valores para os "spike removal" (remoção de picos).


"The "Spike removal" section allows you to specify the maximum differences between successive readings that you wish to allow (...). If a reading differs from the previous reading by the value you specify, or more, then it will be ignored. Be careful in your choice of values; if the difference is genuine, (i.e. not a 'spike') and exceeds your supplied value, then that reading will be 'stuck' at the previous value until a new reading returns to within your supplied difference. Note that the spike removal values must be supplied in the 'native' units of the station, as shown on the screen."

daqui