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WC224
V. 01 03/04/2020 35 ©Velleman nv
Pression atmosphérique (Pressure)
Pression absolue et relative
Maintenir enfoncé PRESSURE - pour sélectionner la pression absolue ou relative.
Taux de changement et historique de pression
Le taux de variation de pression est indiqué à gauche de la pression barométrique
et indique la différence entre la valeur quotidienne moyenne et la valeur moyenne à
30 jours (en hPa).
Histogramme
Appuyer sur PRESSURE - pour afficher la moyenne des 12, 24, 48 et 72 dernières
heures.
Étalonnage de la pression relative :
Pour comparer les conditions de pression d‘un endroit à un autre, les météorologues
corrigent la pression au niveau de la mer. Pour déterminer la pression relative à
votre emplacement, trouver un point d‘observation officiel près de chez vous
(Internet est la meilleure source pour les conditions du baromètre en temps réel
comme sur Weather.com ou Wunderground.com) et régler votre station météo sur
le point d‘observation officiel.
Luminosité
Appuyer à nouveau sur SET pour sélectionner l'unité de luminosité (lux, fc, w/ m²; par
défaut : w/ m²).
Température
Appuyer à nouveau sur SET pour sélectionner l'unité de la température extérieure (°C
ou °F, par défaut : °C).
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