| 摘要 |
The invention relates to a device (1) for monitoring the operation of a dosage dispenser (2) which comprises a suction pipe (5) suitable for being plunged into the liquid additive (3) contained in a container (6), the monitoring device comprising means (D) for detecting the suction of liquid additive and means (A) for displaying operating parameters of the dosage dispenser; the detection means (D) include a tube (10), separate from the suction pipe (5), one end (10b) of which is provided such as to be plunged into the container (6) of liquid additive, and in which the other end (10c) is kept stationary relative to the suction pipe in order to be located outside the container, said other end (10c) being closed and provided with a sensor of the air pressure inside the tube (10), said sensor outputting an electrical signal, and means for using the signal from the sensor, connected to the outlet of the sensor, in order to provide information on the operation. |
