The UGT vacuum tipping counter is a high-precision measuring device for accurately recording and quantifying liquid volume flows in systems under negative pressure. By combining the functions of a classic tipping counter with the advantages of a vacuum system, this device is particularly suitable for soil research and environmental monitoring. It is ideal for connection to suction probes or suction plates and enables continuous and accurate measurement of even the smallest amounts of leachate collected from the soil by negative pressure.

Design and functionality

The UGT vacuum tipping counter consists of an acrylic housing in the middle of which a polyamide tipping bucket is installed. A vacuum is generated in the housing by means of a connected pump. The vacuum continuously feeds liquid (soil water) into the tipping bucket via the connected suction plate or suction probe. The tipping bucket is a bistable system with two opposite buckets. The tipping bucket is calibrated so that one bucket tilts and empties after a certain amount of water (in this case 4 ml) has been added. At the same time, the opposite bucket begins to fill up and the process is repeated in the opposite direction. A pulse signal is triggered via a REED sensor with each tilt. The REED sensor measures the amount of water drained based on the number of these emptying processes. The REED sensor can be connected to an electronic meter or data logger, for example. A 1-channel data logger is recommended for individual devices. The quantified liquid is drained via the basal outlet below the polyamide tipping bucket and can be used for further processing or analysis.