COMMISSIONING A DIAPHRAGM VALVE

Method for determining the end-of-travel positions of a diaphragm in a diaphragm valve comprising actuator: .cndot. initiating displacement of the diaphragm into a first end-of-travel position; .cndot. ascertaining the first end-of-travel position of the diaphragm, wherein said first end-of-travel p...

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Bibliographische Detailangaben
Hauptverfasser: LALEVIC, NOVICA, SCHWARZ, MANUEL
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:Method for determining the end-of-travel positions of a diaphragm in a diaphragm valve comprising actuator: .cndot. initiating displacement of the diaphragm into a first end-of-travel position; .cndot. ascertaining the first end-of-travel position of the diaphragm, wherein said first end-of-travel position is ascertained by monitoring an actuating current value, wherein the first end-of-travel position is reached when a predefined current value is reached; .cndot. saving the first end-of-travel position; .cndot. moving autonomously, preferably in the opposite direction, towards a second end-of-travel position of the diaphragm; .cndot. ascertaining the second end-of-travel position of the diaphragm, wherein said second end-of-travel position is ascertained by means of a predefined travel length (a) of the diaphragm from the first end-of-travel position; .cndot. saving the second end-of-travel position.