Dwyer Instruments SAH Operating Manual

Bulletin TE-SAH-AH

®

Series SAH SMART Air Hood™ Balancing Instrument - Adapter Hoods

Specications - Installation and Operating Instructions

The SERIES SAH SMART Air Hood™ balancing instrument is the most accurate and

easy to operate air ow hood on the market. By using the included hood stand and
wireless communications to the handheld, a single operator can balance a branch in
less time than traditional balancing teams. Besides being lighter than most traditional
capture hoods, the ergonomic design makes the Series SAH easy to maneuver, with
less physical stress. The rugged polypropylene base hood features patented Quad
Flow Design Technology for controlling air ow and minimizing back pressure, which
yields superior measurement accuracy. The Wi-Fi direct communication gives reliable
communication with a distance of up to 200 yards between the hood and the handheld
test instrument. The SMART Air Hood
application software which reduces the number of steps in the air ow balancing
process using Predictive Balancing’s Express Balance mode. Predictive Balancing
is a method of predicting the optimal ow set point for each register and the order in
which they should be adjusted.

™

The SMART Air Hood
m x 0.6 m) opening but can also be used with other diffuser / register sizes using
an adapter base kit (A-SAH-BK) and various adapter hoods. Available adaptor hood
sizes, sold separately, include a 1 ft x 4 ft (0.3 m x 1.2 m) model A-SAH-14S, a 2 ft x
4 ft (0.6 m x 1.2 m) model A-SAH-24S, a 3 ft x 3 ft (0.9 m x 0.9 m) model A-SAH-33S
and a 1 ft x 5 ft (0.3 m x 1.5 m) model A-SAH-15S.

The assembly of the adapter hoods begins with the adapter base kit A-SAH-BK.
Only one adapter base kit is needed, as it can be used with any of the four adapter
hood sizes. To start, lay out the adapter base kit as shown in the photo. To assemble
the adapter base kit and the adapter hoods to the base, please follow the steps in a
sequential order. The number references will be a guide for the right adapter parts to
use.

balancing instrument comes standard with a 2 ft x 2 ft (0.6

™

balancing instrument includes the PredictAir™

Canvas Hood Adapter

(Variety of Sizes)

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

SAH Adapter Base Kit

Model A-SAH-BK

Phone: [phone]

Fax: [phone]

www.dwyer-inst.com

e-mail: [e-mail]

F

E (x4)

D (x4)

C (x2)

The adapter frame kit contains the following parts to build and install the 1´ x 4´ (0.3 m x 1.2
m), 1´ x 5´ (0.3 m x 1.5 m), 2´ x 4´ (0.6 m x 1.2 m) , and 3´ x 3´ (0.9 m x 0.9 m) hood adapters:

A = 18˝ x 6˝ corner bracket long side D = 12˝ long extension
B = 18˝ x 6˝ corner bracket short side E = Spring support poles
C = 24˝ long extension F = Bottom support frame

See the below diagrams for which parts are needed to assemble each hood adapter size.

C

A

D

1´ x 4´

B

A

1´ x 5´

A (x2)

B (x2)

B

B

B

1´ x 4´ (0.3 m x 1.2 m) Adapter Hood

A

D

B

2´ x 4´ (0.6 m x 1.2 m) Adapter Hood

D

D

2´ x 4´

D

A

C

1´ x 5´ (0.3 m x 1.5 m) Adapter Hood

A

B

D

A

C

B

3´ x 3´ (0.9 m x 0.9 m) Adapter Hood

3´ x 3´

A

B

C

A