Repacking - TSI Alnor Balometer 6461 Manual Del Usuario

4. Bring the Balometer into contact with the
perimeter of the diffuser or grill to be
measured. To assure maximum accuracy, the
foam gasket along the top of the frame must
be firmly in contact with the surface all around
the opening. Take care to ensure that your
body or other material is not accidentally
affecting the reading by blocking or diverting
the air flow at the base opening.
5. If the reading is found to be below the full
scale of the next lower scale, the range
selector may be switched to the next lower
scale.
6. The Balometer is calibrated to standard
conditions.
To determine the true volume flow rate,
multiply by the correction factor determined
from Figure 9. The correction factor is based
on the static pressure and air temperature at
the manifold.
With the exception of the 2 x 2 hood and frame,
hoods must be removed from their support frames,
re-rolled and packed in the accessory case. Corner
sections can be pulled apart when the retaining
spring is pushed out of the latching hole. Put wing
nuts back on their threads before storing, to avoid
losing them.
All the frame pieces fit in the plastic insert at the
case bottom. Use the positioning chart shown on
the label attached to the inside of the carrying case
to find the correct location for each piece. The
formed insert is divided into two sections for
convenient storage of parts when less than the
maximum number of hoods are supplied with the
instrument. Once all the parts are positioned they
are held in place with the elastic straps.
6
6
7. The additional system resistance generated by
the Balometer may affect the output of an
individual diffuser. Depending on system
design and balancing method, this may or may
not be important. When proportionally
balancing a system of similar outlets, this is
not usually an important factor. If system
design or other factors require adjustment,
Figure 8 is included for your reference.
Low Flow Adapter Application
(Recommended measurement range
50 to 125 CFM)
The low flow screen must be placed on the side of
the manifold against which the air pressure will be
felt. Ensure that the air flow is in the proper range
for using the low flow screen before installing it.
The Balometer and adapter are calibrated at the
factory for use on the lowest range only.

REPACKING

Next dismount the dowels and pack them in the
accessory case with the hoods.
The hood support is removed by slightly springing
the ends of the long wires out of their mounting
holes. After the low flow adapter is pressed
(gently) into its storage position on top of the
manifold, the hood support can be stowed. It will
fit inside the base, by swinging the long rods to the
same side as the short ones. All four long rod ends
can then be inserted into holes in two adjacent
corner tubes and the entire mechanism is then
inside the base unit. Be careful not to damage the
manifold when pressing the screen in place, or by
allowing the short rods of the hood support to
protrude through the screen.