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Differential pressure sensors for flow measurement in bypass configuration

Differential pressure sensors for flow measurement in bypass configuration

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By eeNews Europe



The resulting pressure is measured over the orifice or the linear flow component. The difference between the pressures before and after the orifice correlates to the volumetric flow in the channel, depending on the specific characteristics of the flow restriction component. The mass flow can therefore be calculated from the measured pressure drop (differential pressure) over the orifice. A bypass configuration is highly suitable for applications where individually adapted flow channels are necessary or where small differential pressures must be measured with very high precision.

The units offer a digital I2C output and are fully calibrated and temperature compensated. Operating on the principle of calorimetric flow measurement, the CMOSens differential pressure sensors achieve outstanding sensitivity and accuracy even at very low pressure differences (below 1 Pa). They also have very high long-term stability and are free from zero-point drift. Like all devices in the SDP600 series, the SDP6x1 sensors are available in two versions. The SDP601 is intended for direct threaded connection to a pressure manifold with O-ring sealing, while the SDP611 is designed for tube connection.

Visit Sensirion at www.sensirion.com/en/sdp600

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