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2455RM Datasheet(PDF) 10 Page - Honeywell Solid State Electronics Center |
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2455RM Datasheet(HTML) 10 Page - Honeywell Solid State Electronics Center |
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10 / 73 page  10 www.honeywell.com/sensing AWM3000 Series Like the AWM2000 Series, the dual Wheatstone bridges control airflow measurement. The AWM3000 Series is amplified; therefore, it can be used to increase the gain and to introduce voltage offsets to the sensor output. The heater control circuit and the sensing bridge supply circuit are on board the package. Signal conditioning: Am- plified (1 Vdc to 5 Vdc) Port style: Straight FLOW/PRESSURE RANGE REFERENCE ± 200 sccm AWM3100V + 2.0 in H 20 (5 mBar) AWM3200V ± 1000 sccm (1 SLPM) AWM3300V AWM40000 Series The microbridge mass airflow sensor operates on the theory of heat transfer. Mass airflow is directed across the surface of the sensing elements. Output voltage varies in proportion to the mass air or other gas flow through the inlet and outlet ports of the package. The specially designed housing precisely directs and controls the airflow across the microstructure sensing element. Mechanical design of the package allows it to be easily mounted to printed circuit boards. The microbridge mass airflow sensor has a unique silicon chip based on advanced microstructure technology. It consists of a thin-film, thermally isolated bridge structure containing heater and temperature sensing elements. The bridge structure provides a sensitive and fast response to the flow of air or other gas over the chip. Dual sensing elements positioned on both sides of a central heating element indicate flow direction as well as flow rate. Laser trimmed thick film and thin film resistors provide consistent interchangeability from one device to the next. Port style: Manifold SIGNAL FLOW/ REFERENCE CONDITIONING PRESSURE RANGE Unamplified (8.5 mV) ± 25 sccm AWM42150VH Unamplified (54.7 mV) ± 1000 sccm (1 SLPM) AWM42300V Amplified ± 1000 sccm (1 SLPM) AWM43300V (1 Vdc to 5 Vdc) Amplified + 6 SLPM AWM43600V (1 Vdc to 5 Vdc) Mass Airflow sensors contain a thin-film, thermally isolated bridge structure containing heater and temperature sensing elements. The bridge structure provides a sensitive and fast response to the flow of air or other gas over the chip. State-of-the-art chip design and manufacturing techniques allow the microbridge to be remarkably sensitive, fast, small. Used wherever airflow needs to be measured. Supply voltage: 8 Vdc to 15 Vdc Operating temperature: -25 °C to 85 °C (-13 °F to 185 °F) Media compatibility: Dry gas only AWM2000 Series The AWM2000 Series microbridge mass airflow sensor is a passive device comprised of two Wheatstone bridges and has bidirectional sensing capability. 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. Signal conditioning: Unamplified (-44,5 mVdc to 44,5 mVdc) Port style: Straight Sensor resistance: 5 kOhm FLOW/PRESSURE RANGE REFERENCE ± 200 sccm AWM2100V ± 4.0 in H 2O (10 mBar) AWM2200V ± 1000 sccm (1 SLPM) AWM2300V MASS AIRFLOW Mass Airflow Sensors |
Similar Part No. - 2455RM |
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Similar Description - 2455RM |
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