Unamplified Airflow Sensors
Allow users to do their own amplification while retaining maximum resolution of the sensor’s output signal.
AWM1000 Series
Microbridge Mass Airflow Sensor Unamplified
- Uncompensated.
- ±200 SCCM, 1000 SCCM to -600 SCCM: ±5.0 mbar, ±10.0 mbar.
- Analog output.
mass flow sensor provides all of the outstanding performance benefits of the standard AWM2000 series in a more cost-effective sensor platform.
This device provides accurate, repeatable flow sensing. Sensor to sensor interchangeability specifications are approximately twice as large as compared to the AWM2000 series.
AWM2000 Series
Microbridge Mass Airflow Sensor Unamplified
- Compensated.
-
±30 SCCM, ±1000 SCCM: ±10.0 mbar
- Analog output.
Microbridge mass airflow sensor is a passive device comprised of two Wheatstone bridges. The heater control circuit is required for operation per specifications. The sensing bridge supply circuit is also required for operation per specifications. These two circuits are not on board the package and must be supplied in the application.
The differential amplifier is a useful interface for the sensing bridge. It can be used to introduce gain and to voltage offsets to the sensor output.
AWM9000 Series
Microbridge Mass Airflow Sensor Unamplified
-
Uncompensated
-
±200 SCCM, ±5.0 mbar.
- Analog output.
The AWM90000 Series microbridge mass airflow sensors utilize the time proven thermal bridge technology. The AWM90000 series provides many of the outstanding performance benefits of the AWM1000 series, but in a more cost effective sensor platform. They are available in two versions, Mass Flow and Differential Pressure.
The AWM92100V has a flow range of ± 200 sccm and the AWM92200V is a ± 2.0 inch H2O differential pressure version.
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