AWM700 Series, Compensated/Amplified
LAMINAR FLOW
Due to the fast response time of the sensor, the specifications in this datasheet were generated using laminar flow. Airflow instability or
"turbulence" present in the airstream will result in an increase in measurement uncertainty. Turbulent flow may be corrected by either of
the following two methods:
• Straightening the airflow by using flow laminarizing.
• Slowing the response of the sensor by using a simple RC time constant on the output of the sensor. (This will slow down the sensor
response time.
The values needed depend on the amount of turbulence present in the application. A technique for laminarizing the flow includes adding
the following separately-purchased laminar flow elements to the flow stream:
• Hex-shaped honeycombs
• Foam
• Screen materials
• Constrictors (frits)
Unfortunately, the greater the efficiency of the laminarizer, the greater the increase in pressure drop in order to establish a given flow rate.
Plastic honeycomb material probably gives the most improvement for the least pressure drop.
Ensure sharp radii are avoided in any test fixture.
Electrical Connection
The AWM700 Series accepts a latch detent connector, such as AMP 103956-3. Information on latch detent connectors is available from
the AMP Product Information Center, 1-800-522-6752 or the AMP Customer Hotline, 11-800-722-1111.