Reusable autoclavable mass flow meters

Reusable autoclavable mass flow meters

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By eeNews Europe

The CMOSens technology used by Sensirion is extremely resistant to environmental influences, which makes the flow sensors suitable for applications where sterilization is required. The chip-based sensor component was tested for more than 1000 hours at 150°C.

Test results show that the sensor components have withstood 1000 temperature variation cycles involving switches from -40°C to 140°C. While the SFM3200-AW achieves a lower pressure drop, both sensors measures the flow rates of air, oxygen and other non-aggressive gases up to 250 slm. According to aging models, the offset drift over a ten-year lifespan is expected to be smaller than 0.2 slm.

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