Features and Benefits:
- Equal Area Traverse. Total pressure sensors are positioned so that each sensor represents an equal portion of the station’s cross-sectional area. The total pressure sensors are placed on equal area bases. Static pressure sensors are around the circumference of inner wall to measure uniform static pressure.
- Equal Weighted Average. The “averaging” process in the airflow measuring station manifolds is critical to maintaining high measurement accuracy. Unlike a manual Pitot tube traverse where individually taken velocity readings are totaled and mathematically averaged, the airflow measuring station must pneumatically average all of the sensed total pressure values in a manner that gives equal weight to each value.
- Airflow Processing. To assure extremely high levels of measuring accuracy (2% of actual flow or better) under adverse conditions caused by turbulent, rotating, and multi-directional airflows normally present directly downstream from duct elbows, transitions, etc., the LO-flo uses open, parallel cell, honeycomb panels to “process” the air into straightened flow just prior to the static and total pressure measurement. These honeycomb panels sharply reduce the need for long, straight runs of duct before and after the station to obtain accurate flow measurement.