The ultra-compact, cost-efficientspecialist for responsive air flow measurement with integrated detection of direction.

Improving production quality with the bi-directional SCHMIDT^® Flow Sensor SS 20.420 by measuring room

overflow.

In pressure cascaded cleanrooms maintaining the overflow from one room to another is the basic requirement for keeping the goods clean produced therein. Here, the direct measurement of overflow is much more accurate than traditional pressure measurement. Thus, a simple and consistent monitoring of all clean areas to local Clean Machines is feasible.

Prerequisite for measurement of room overflow is a sensor that measures flow in both directions. Thus, it can be ensured continuously that no contamination of the clean area has taken place. Based on the industry-standard interface of the sensor integration into the parent control is possible. The sensor has no moving parts and mainly consist of stainless steel, which guarantees complete cleanability. When used in Clean Machines, the sensor is also suitable for laminar-flow monitoring, due to its characteristics and easy regulating and mounting.

Measuring accuracy in black and white

Upon request it will be supplied with an additional high-precision calibration system. This system enhances the precision even more by the use of more calibration points, and the documentation of the target and actual values as ISO calibration log. Our high precision wind tunnels are matched to the respective application and are regularly calibrated using a Laser-Doppler-Anemometer.

SCHMIDT^® Flow Sensor SS 20.420 with bidirectional measurement with one sensor

The thermal SCHMIDT^® Flow Sensor SS 20.420 uses the so-called temperature-scale process and can thus detect and show the direction of flow in addition to the flow velocity.