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Installation der Temperaturfühler
Der Regler arbeitet mit Pt1000-Temperaturfühlern, die für eine gradgenaue Temperaturerfassung sorgen, um die Anlagen-
funktion regeltechnisch optimal sicherzustellen.
Die Fühlerleitungen nnen bei Bedarf mit einem Kabel von mindestens 0,75 mm² auf maximal 30 m verlängert wer-
den. Achten Sie darauf, dass hierbei keine Übergangswiderstände auftreten! Platzieren Sie die Fühler genau im zu
messenden Bereich! Verwenden Sie nur den für das jeweilige Einsatzgebiet passenden Tauch-, Rohranlege- oder
Flachanlegefühler mit dem entsprechend zulässigen Temperaturbereich.
Kleinspannungsführende Leitungen wie Temperaturfühlerleitungen sind getrennt von netzspannungsführenden Lei-
tungen zu verlegen. Temperaturfühlerleitungen nur in die linke Seite und netzspannungsführende Leitungen nur in
die rechte Seite des Gerätes einführen.
Regler und VFS Sensor müssen das gleiche Massenpotential haben. Der VFS Sensor verfügt über eine Funk-
tionserdung (PELV). Die PE-Klemme des Reglers muss mit dem Rohrsystem nahe dem Sensor verbunden werden.
Beispiel:
Anschlussbelegung und Abmaße des Vortex Flow Sensors VFS2-40 in 3/4” Edelstahlausführung”
Widerstandstabelle für Pt1000 Sensoren
°C -20 -10 0 10 20 30 40 50 60 70 80 90 100
Ω 922 961 1000 1039 1077 1116 1155 1194 1232 1270 1308 1347 1385
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