6
3 Function description
• The sensor measures the upper edge of the valve spindle
• Non-contact and wear-free detection of the valve positions: closed (close),
open (open) and the position for seat lift (seat) during the cleaning process�
• It is also possible to monitor the state of the valve seals instead of the seat lift�
Due to the high resolution of 0�2 mm even slight changes can be detected�
• Easy and time-saving adjustment by "teaching" (reading) the valve positions�
The taught valve positions are automatically assigned certain switching
characteristics of the three outputs, several operating modes are available (see
chapters Programming and Set-up)�
• Monitored stroke (detection zone) 80 mm� The condition "valve spindle outside
detection zone" is indicated�
• After adjustment the unit can be electronically locked to prevent unauthorised
manipulation�
3.1 Application example
closed*
seat lift
open*
Active detection range of
the sensor
Position seat lift is taught
Open position is taught
Closed position is taught
* The valve positions closed and open may also be reversed�