AWM3300V

AWM3300V is a AWM3000 series microbridge mass air flow/amplified sensor. This sensor operates on the theory that airflow directed across the surface of a sensing element causes heat transfer. Output voltage varies in proportion to the mass of air or other gas flowing through a given sensor's inlet and outlet ports. Current sink/source. Maximum current ratings are 10mA sinking and 20mA sourcing, governed by an LM224 operational amplifier in the final stage of the instrumentation amplifier. Typical applications include damper control for heating, ventilation, and air conditioning systems, gas analysers, low vacuum control, process control, medical respirators and ventilators, oxygen concentrators, leak detection equipment, vent hoods, anaesthesia control, gas metering and gas chromatography.

• Laser trimmed for improved sensor interchangeability
• Flow sensing up to 1.0SLPM
• Mass flow and differential pressure sensing
• Output voltage at trim point 5.0VDC at 1000sccm
• Null voltage is 1VDC
• Maximum power consumption is 50mW
• Response time is 3msec
• Common mode pressure is 25psi
• Operating temperature range from -25°C to 85°C
• Supply voltage range from 8VDC to 15VDC

Notes

Microbridge mass airflow sensors are not designed to sense liquid flow and will be damaged by liquid flow through the sensor.