The Almatec stroke counter is simply that, a sensor installed in the center housing to count the number of strokes the pump makes. The diaphragm movement is scanned without contact by the sensor. The issued sensor pulses can be output to a detector, which can be used to stop the pump after a preset value. The pneumatic stroke counting registers the changes in pressure within the air chamber behind one of the diaphragms.
This option is ideal for use in metering and dosing applications.