Insertion Type Airflow Sensing Element - FE-1000
Insertion Type Airflow Sensing Element FE-1000 DESCRIPTION
The FE-1000 is an insertion type airflow sensing element designed for quick, easy installation through a small cutout in the existing ductwork.
Where multiple elements are required for proper duct traversing,
the output ports are manifolded together, external to the ductwork.
Each element is furnished complete with mounting hardware and sealing
gaskets. Standard aluminum elements also include all brass compression
fittings required to manifold the elements together.
The FE-1000 airflow sensing element is a head type device, which generates a differential (velocity) pressure signal similar to the orifice,venturi, and other head producing primary elements. The FE-1000 is constructed so that strategically located sensing ports (based on duct size)continually sample the total and static pressures, when inserted normal to flow. The total pressures sensed by the upstream ports are continually averaged within the element in an isolated chamber. The static sensing ports (located where the influence of the velocity head is zero) are averaged in a second isolation chamber. Each chamber is then connected to one side of a differential measurement device (gauge, transmitter, etc.)
for flow measurement and indication purposes.
Insertion Type Airflow Sensing Element FE-1000 Features
Low signal-to-noise ratio
Multiple total and static pressure sensing ports along the length of the element
Averaging internal manifold
Insensitive to flow angle variations of as much as ±20o when faced in the normal direction of flow
±2% accuracy throughout the velocity rages of 100 fpm and over
Standard construction is 6063-T5 aluminum with anodized finish
Available in optional corrosive resistance materials including Type 316L stainless steel, Hastaloy, and Type 1 PVC
Insertion Type Airflow Sensing Element FE-1000 Technical Specifications
Within 2% of actual flow (even in moderately turbulent flows) with
approach angle variation of ±20, when installed in accordance with
2. Operating Velocity Range
100 to 10,000 fpm
6063-T5 anodized aluminum (standard)
Type 316L stainless steel (optional)
Type 1 PVC (optional)
Other corrosive resistant materials are available. Consult factory for
350oF continuous operation (in air)
400oF intermittent operation (in air)
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