Digital Mass Flow Sensors suit portable/handheld applications.

Press Release Summary:




Offering flow ranges from 0 to 200 or ±200 sccm and 0 to 1 or ±1 slpm, WBI series includes unidirectional and bidirectional sensors that achieve accuracy of ±2.0% of reading +0.25% FSO. Linear output signal is available via digital I²C bus interface; analog output is available upon request. Utilizing sensitive thermal measuring principle to detect air and gas flows, sensors operate from 2.7–5.5 V supply and are sized to enable space-saving and flexible PCB mounting.







Original Press Release:



New Digital Mass Flow Sensors with Very High Accuracy in Both Flow Directions



First Sensor presents the new cost-effective Sensortechnics WBI mass flow sensors with ranges of 200 sccm and 1 slpm. In addition to unidirectional devices the WBI series offers bidirectional sensors to measure flows in both directions. The digital flow sensors achieve a very high accuracy over the complete measuring range in the positive as well as negative flow direction. A linear output signal is available via a digital I²C bus interface (analog output on request).



The WBI mass flow sensors utilize a very sensitive thermal measuring principle to detect even lowest air and gas flows. The sensors feature a 2.7…5.5 V supply and low power consumption to allow for battery powered portable or handheld applications. The small housings enable space-saving and flexible PCB-mounting and compact OEM device constructions.



The Sensortechnics WBI flow sensors are ideal for medical device applications such as ventilators, sleep diagnostic equipment, CPAP, anesthesia machines, spirometers and oxygen concentrators/conservers. Due to their fast response time the sensors ensure the early detection of the patient’s breathing phases and thereby improve the device control system. Further applications include HVAC, leak detection, analytical and laboratory devices as well as fuel cells.



Important features of the new WBI series:



- Flow ranges 200 sccm and 1 slpm

- Very high accuracy in both flow directions

- Digital I²C bus interface

- Fast response time and low power consumption



Direct Web-Link: www.sensortechnics.com/wbi




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