Compact air flow velocity sensor with direction measurement function — SS 20.420

Description

Direct measurement of flow velocity or standard volumetric air flow is the ideal solution for many applications. An accurate sensor is the foundation for effective measurement, ensuring regulation and control of processes in industrial applications. Therefore, the thermal anemometric sensor SCHMIDT® SS 20.420 with its reliable design and fast electronics is perfectly suited for such tasks.

In clean rooms with positive pressure, the basic requirement is to maintain a constant movement of air from the room to the outside. Direct measurement of the air flow exiting outside is a much more accurate and reliable control method than the more common measurement using differential pressure sensors. This control method allows simple and reliable monitoring of both clean rooms and laminar boxes.

For direct monitoring of air exiting the room, a velocity sensor capable of measuring flow in two directions is required. This allows continuous control to prevent the ingress of contaminants into the clean room. The sensor can be connected to the control system via standard output signals. The device has no moving parts and is made predominantly of stainless steel, making it fully cleanable. In clean rooms and laminar boxes, the sensor can also be used to monitor laminar flow.

The SCHMIDT® SS 20.420 thermal anemometric flowmeter uses a special sensitive element that allows determining and displaying not only the flow velocity but also its direction. Nowadays, many machines and systems are very compact, leaving little space for necessary measuring equipment. This problem is solved by the ultra-compact SCHMIDT® SS 20.420 flow sensor with a minimal length of only 60 mm and a diameter of 9 mm. The SCHMIDT® SS 20.420 flowmeter does not sacrifice quality for compactness. Thanks to the highly integrated sensor element and electronics, the sensor calculates flow velocity every millisecond and outputs data linearly to the analog output. In terms of measurement accuracy, the device is comparable to larger counterparts.