Dwyer SMART Air Hood SAH22A Serie Instrucciones De Instalación Y Funcionamiento página 3

INSTALLATION
Assembling Accessories
In order to place the hood onto a diffuser to measure air flow it needs to be mounted
on the included extendable pole.
Before connecting the pole to the hood, the safety clamp must be slid onto the long
pole. The safety clamp is designed to stop the pole from sliding if the pole sleeves are
not locked into position. Slide the locking collar into position at the top of the middle
sleeve of the pole and lock into place. The collar location may be adjusted to the height
of the user.
To connect the pole to the hood, align the hole at the end of the pole with the holes
in the mounting plate of the hood. Insert the provided locking pin through the holes in
order to lock the pole to the hood. When inserting the locking pin, start by placing it into
the alignment hole on the opposite side from the power button as illustrated below. In
order to insert or remove the pin, press in the button on the end of the pin.
When using the short pole or with the SAH22A adapter base kit for canvas hoods,
the stationary pole adapter should be used to keep the pole from pivoting. Place the
stationary pole adapter onto the SAH22A and attach using the screws and wing nuts
provided (below). Once secure, insert the short pole and secure in place using the
locking pin.
Safety Clamp
To attach the handheld to the pole secure the handheld locking device to the pole as
shown below. Secure handheld to pole using locking attachment on the back of the
handheld by inserting it into the locking device on the pole and rotating 1/4 turn.
Once the handheld is attached to the pole, the SAH22A is ready for use. Note,
handheld instrument shown above is for illustrative purposes only.
For shorter ceilings it is recommended to leave the top section of the pole inserted into
the pole and adjust the height with the middle section for greater stability.
OPERATION
Connecting the SMART Air Hood
Application Software
The LED lights on the hood blink in certain patterns depending on its communication
with the handheld.
Blue LED State Red LED State Connection Status
50% duty cycle 50% duty cycle
20% duty cycle 20% duty cycle
5% duty cycle 5% duty cycle
Placing the SMART Air Hood Balancing Instrument on a Diffuser
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Place the hood on the diffuser and ensure that there are no leaks by visually inspecting
that the hood seal completely surrounds the diffuser. Make sure to check every side
and corner of the hood and verify that it is sealed onto the diffuser.
Once the hood is placed correctly, twist the pole to adjust the pole length so that it
reaches the floor supporting the hood itself. If the hood is not securely in place, then
re-adjust the pole length.
Balancing Instrument to the PredictAir
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Not connected
Attempting to connect
Connected
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