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SECTION 1
General Description
The RVA+ is intended for measurement of air
velocity and volume flow at return grilles, fume
hoods, kitchen exhausts etc. It uses rotating
vane anemometer technology. Air movement
causes rotation of a multi-blade fan mounted in
low-friction bearings. An infrared sensor
translates fan blade movement into measured air
velocity.
The RVA+ features a 270-degree rotating head
with detents at every 90° and will function
satisfactorily in any angular position. This
allows the LCD display to be viewed from the
front of the instrument while the head is
oriented with the flow direction.
In addition, the temperature of the air flow is
measured and displayed simultaneously with
the flow reading.