SFM3300-D

SFM3300-D is a SFM3300 series digital flow meter for medical application. It measures the flow rate of air, oxygen and other non-aggressive gases with superb accuracy. The special design of the flow channel results in a very small dead space. It is the disposable single-use version. It is extremely well suited for proximal flow measurements in medical ventilation and other respiratory applications. It has been designed with use by medical professionals in mind. It features medical cones for pneumatic connection to standard breathing circuits and a mechanical interface for easy and reliable electrical reconnection. The sensor element, signal processing and digital calibration are on a single microchip assuring very fast signal processing time, best-in-class accuracy and superior robustness to rough handling and adverse conditions. Application includes proximal flow measurement, expiratory flow measurement, for ventilation & anaesthesia, respiratory measurements, metabolic measurements.

• Flow range is ±250slm, bidirectional, small dead space <lt/> 10ml
• Very fast update time (0.5ms)
• Shelf life is 3 years (15°C - 35°C; 30 - 70 % rel. hum)
• Operating pressure range from 0.54 to 1.1bar (absolute)
• Burst overpressure is 0.3bar (gauge)
• Resolution (14bit) is 0.07% m.v. (span), I²C interface
• Pressure drop is 230 / 0.93Pa / inH2O max (60slm, 25°C)
• 64 (h40) default sensor address, 0.5ms update time (14 bit), 5V±5% supply voltage
• Power consumption is <lt/>50mW, 32768 offset flow, 51ohm external heater resistance
• Operating temperature range from +5 to +50°C