Analog mass flow meter for artificial respiration and anesthesia

The new SFM3100 measures with great accuracy and speed. It has a compact design and can be easily integrated into existing devices. There is a temperature sensor in the gas channel of the flow meter. This enables highly precise temperature compensation and obviates the need to integrate a dedicated temperature sensor. Moreover, the SFM3100 returns an analog output signal and measures the flow rates of air and other non-aggressive gases between -24 and +240 slm. It can also detect negative flow ranges, thereby recognizing errors or impeded flows in a reliable manner. At the same time, multiple gases are compensated with great precision. The flow rates and signal characteristics of the sensor can be customized to meet customer-specific requirements. The fully calibrated and temperature-compensated mass flow meter also boats an extremely low pressure drop and is free of zero-point drift.