General Description; Safety Notice - TSI Alnor Balometer 6461 Manual Del Usuario

The Alnor Balometer is designed to assist you in
rapid and accurate measurements of air
distribution in heating, ventilating, and air
conditioning systems. The Balometer directly
reads average air flow rate, either intake or
outflow, at ceiling, wall or floor diffusers.
In use, air to be measured is directed past a
manifold which senses flow at multiple points
spread across a carefully sized area. The manifold
is designed so that the air volume is sensed at
either supply or return diffusers with equal
accuracy.
The manifold is connected through the range
selector to an Velometer which can be provided
with scales for English measurement units of cubic
feet per minute (CFM) or either of two metric
scales, cubic meters per hour (cmh) or liters per
second (l/s), and is capable of reading flows up to
2000 CFM (3400 cmh, 950 l/s). This time-proven
Velometer is the heart of the Balometer measuring
system.
A single knob direction and range selecting unit
allows control of the Balometer for either supply
or return diffusers, on ranges of 100–500, 400–
1000, and 800–2000 CFM. (170–850, 700–1700,
When using the Balometer to check air flow at
ceiling diffusers, make certain that you can safely
raise and hold the unit while making
measurements, especially when working on a
ladder.
Observe all necessary precautions so that the unit
does not become caught in moving machinery.
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GENERAL DESCRIPTION

SAFETY NOTICE

and 1400–3400 cmh; 50 to 240, 200 to 475, and
400 to 950 l/s).
A Low flow adapter is also included with each
Balometer for accuracy in balancing modern air
systems which incorporate low volume diffusers.
When used with the most sensitive range selector
setting it provides an additional measurement
range up to 250 CFM (400 cmh, 120 l/s).
For increased flexibility the unit can be supplied
with up to five sizes of nylon hoods which fit
interchangeably on the instrument base. The 2 x 2
size is standard and is attached to its own
permanent frame. Other hoods (2 x 2, 1 x 4, 1 x 5,
3 x 3) are used with frame pieces which must be
assembled by the user.
*Throughout this manual the units CFM, cmh, and
l/s are used for simplicity. Note however that the
Balometer actually reads in standard cubic feet
per minute (SCFM), standard cubic meters per
hour (scmh), or standard liters per second (std.
l/s). See the Specifications section for more
information.
The Balometer is not designed for gas mixtures
other than air. Any use with corrosive or other
dangerous or explosive gas mixtures is not
recommended, and is at the user's risk.
Due to its size and shape, care should be taken
when carrying the assembled instrument from
place to place so that it does not accidentally bump
into people or objects.