| 摘要 |
<p>Known position indicators for magnetic valves are switches which may be activated by cams on the moving parts. Following installation an individual adjustment has to be performed in order to obtain a precise acknowledgment. This disadvantage is avoided and a better monitoring of the functioning of the valve is obtained by detecting the position by means of a continuous position signaller where the data obtained from the putting into service are used as reference data at later determinations of extreme positions.</p> |
