BRONKHORST EL-FLOW Série Mode D'emploi page 6

3.1 Généralités················································································································ 20
3.2 Alimentation et préchauffage ························································································· 20
3.3 Mise à zéro ··············································································································· 20
3.4 Démarrage ················································································································ 20
3.5 Conditions d'utilisation ································································································· 20
3.6 Performance de l'instrument ························································································· 21
3.6.1 Mesure ····················································································································· 21
3.6.2 Régulation················································································································· 21
4 MAINTENANCE ................................................................................................... 22
4.1 Généralités················································································································ 22
4.2 Capteur pour mesure de débit gaz ················································································· 22
4.3 Capteur pour mesure de débit liquide ·············································································· 22
4.4 Capteur de pression ···································································································· 22
4.5 Régulateurs ··············································································································· 22
4.6 Vannes de régulation ··································································································· 22
4.6.1 Vannes à solénoïde ···································································································· 22
4.6.2 Vannes Vary-P ··········································································································· 23
4.6.3 Vannes pilotées ·········································································································· 23
4.6.4 Vannes à soufflet ········································································································ 23
4.7 Calcul du K> ··············································································································· 24 v 4.7.1 Pour gaz ··················································································································· 24 4.7.2 Pour liquides ·············································································································· 24 4.8 Pertes de charge maximales ························································································· 25 4.9 Procédure d'étalonnage ······························································································· 26 5 DEPANNAGE ....................................................................................................... 27 5.1 Généralités················································································································ 27 5.2 Aide à la localisation de panne ······················································································ 27 ® BRONKHORST
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