Bi-directional flow sensor

Omron Electronic Components Business Europe has announced a new addition to its range of air and gas flow sensors designed for medical, analytical and HVAC/VAV (Variable Air Volume) equipment. The MEMS-based D6F-P air flow sensor delivers uni- or bi-directional sensing with amplified output. The D6F-P is a solution for flow rate monitoring and dumper control in HVAC/VAV applications. It also acts as a replacement for differential pressure sensors in HVAC systems as well as medical equipment such as respirators, ventilators, Continuous Positive Airway Pressure (CPAP) and sleep apnea monitors. The flow sensor measures 7 x 35 x 17.2 mm (L x W x H) offering increased flexibility of the system design.

 To offer more freedom in locating the sensor, the D6F-P comes with lead terminals for PCB mounting or as a connector option. In a bypass configuration, the D6F-P can measure flow higher than its own capability and can also maintain differential pressure sensing with high sensitivity and repeatability even in very low flow conditions. It comes with a uni- or bi-directional flow range of 1.0 LPM at an output voltage of 0.5 to 2.5V with an accuracy of +/-5% full-scale deflection. A key feature is its integrated, patent pending dust segregation system (DSS) which separates up to 99.5% (simulation test result) of dry air borne particulates from contaminated air helping to maintain performance characteristics of the sensor over its lifetime. In the D6F-P the DSS is bi-directional, protecting against particulates whatever the direction of flow.