Product Description
The micro-bridge air flow meter from the AWM2000 series is a passive device consisting of two Wheatstone bridges.
The heating control circuit is required for operation in line with specifications.
The sensor bridge supply voltage circuit is also required for operation in line with specifications.
These two circuits are not integrated into the package and must be provided within the application.
The differential amplifier is a useful interface for the sensor bridge.
It can be used to provide output gain and introduces voltage offsets to the sensor output.
Micro-bridge air flow meters from the AWM series are not designed to detect liquid flows, and will be damaged by liquid flowing through the sensor.
• Measuring capability in both directions• Air flow measured/actual value• Differential low pressure sensorTechnical product data:Signal conditioning: Not amplified (mV)Flow/pressure range: ±200 sccmOutput voltage at the calibration point: 30.0 mV DC at 100 sccmConnection type: StraightZero offset for temperature changes: ±0.20 mV DCOutput offset for changes in temperature: ±2.5% of measuring rangeFlow rate change: 5.0 SLPM/sRepeatability: ±0.35% of measuring rangeZero offset: ±1 mV DCResponse time: 1 ms typical/3 ms max.
Supply voltage: 8.0 V DC min.
, 10.0 V DC typical, 15.0 V DC max.
System pressure: 25 psiPower consumption: 30 mW typical, 50 mW max.
Operating temperature: -25 - 85°CStorage temperature: -40 - 90°CMedia compatibility: dry gas onlySensor resistance: 5.0 kOhmSensor current: 0.6 mA max.
Shock: max.
10 g (5 impacts in 6 axis directions)
