Dwyer Instruments SAH Balancing Instrument

Series SAH SMART Air Hood™ Balancing Instrument

24.074

7.103

8.909

Specications - Installation and Operating Instructions

24.074

13.662

Bulletin TE-SAH

13.662

5.543

90.000°

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.

INCLUDED WITH THE SAH

1. Translucent gray SAH base unit with 2´ x 2´ (600 mm x 600 mm) opening

2. Handheld test instrument with attached quick release

3. Extendable pole 4.5´ to 12´ with handheld test instrument connection

4. Extendable pole 2´ to 4’ with handheld test instrument connection

5. Installation and operating manual

6. Pole safety clamp

7. Stationary Pole Adapter

8. SAH travel case

9. Cable adapter to connect the SAH and handheld test instrument

10. Charger and cable for SAH and handheld test instrument

MODEL CHART

Model Description

SAH-22 SAH-22-LB

ACCESSORIES

Model Description

A-SAH-14S A-SAH-BK A-SAH-CK

SMART Air Hood SMART Air Hood lithium battery

Canvas hood 1´ x 4´ SAH adapter base kit for canvas hood Spare calibration kit, Includes quad ow sensing grids, and sensor

module

™

balancing instrument includes the PredictAir™

™

balancing instrument with 2´ x 2´ opening

™

balancing instrument with 2´ x 2´ opening, less

SPECIFICATIONS VOLUME FLOW

Service: Air. Volume Flow Units: CFM, l/s, m Volume Flow Ranges: Supply: 40 to 2000 CFM. (68 to 3398 m3/h); Exhaust: 80 to

2000 CFM.

Accuracy at Calibration > 40 CFM: ±3% of reading ±7 CFM*. Accuracy for Any Diffuser > 40 CFM: ±3% of reading ±10 CFM**. Resolution: 1 CFM (1.7 m³/h) (.5 l/s).

TEMPERATURE Units: °C, °F, °K.

Operating Range: 40 to 140°F (4.4° to 60°C).

Storage Range: -4 to 122° F (-20° C to 50° C). Accuracy: ±0.3% of reading (no calibration required).

RELATIVE HUMIDITY Range: 5 to 95%. Accuracy: ±5% of reading (no calibration required).

ABSOLUTE PRESSURE

Units: mbar, Pa. Range: 10 to 2000 mbar. Accuracy @ 25°C and within 300 to 1100 mbar: ±2% of reading z9b (no

calibration required).

Power Requirements: 3.6 V NCR18650B MH12210 lithium ion battery, included, user replaceable or (4) 1.5 V AA alkaline batteries, not included, user replaceable.

Housing Material: Polypropylene. Weight: 5.75 lb (2.6 kg).

Agency Approvals: CE, FCC, IC. *Based on calibration with Sensing Precision Calibration Fixture and Dwyer standard diffuser. **Based on any diffuser in the Dwyer downloadable library.

Please see Bulletin TE-SAH-SW for PredictAir

instructions.

/h.

™

Application Software

DWYER INSTRUMENTS, INC.

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

Phone: 219/879-8000

Fax: 219/872-9057

www.dwyer-inst.com

e-mail: info@dwyermail.com

FEATURE OUTLINES

SAH Hood Handheld Instrument

Speaker

Battery compartment

Diffuser cap

Charging port

Power button

Sensor module

Antenna

Pole mounting plate

Detachable quad ow

sensing grid x4

Volume buttons

Power/sleep button

Menu button

Headphone connection with integral protective rubber cap

USB connection for data transfer or recharging with integral protective rubber cap

Reset button

Backlit touchscreen LCD

Back button

Home button

Camera

Speaker

SD card access

Hand strap clip

INTRODUCTION

WARNING

Instruments, Inc. for any resulting damage to the unit or to the operator if it is used with corrosive or dangerous or explosive gas mixtures. When using the handheld instrument/hood to check air ow at ceiling diffusers, make certain that you can raise and hold the unit safely during use. This instrument is not classied as ameproof or intrinsically safe; therefore, it must not be used where an explosion hazard may exist. The unit is not authorized for use on life support applications.

Note: Observe standard safety procedures when working on ladders and scaffolding. Also, ensure the unit does not become caught in moving machinery or on sharp objects.

CAUTION

the unit to stabilize at room conditions before use.

• Owing to its size and shape, take care when carrying the assembled unit from place to place.

• Avoid people and nearby equipment.

• Avoid objects that may damage the capture hood.

• Turn the instrument off before storage or transportation and remove the batteries if storing for long periods of time.

• Avoid subjecting the quad ow sensing grids to excessive loading during use or assembly. Any air ow other than through the calibrated sensing holes, such as any hair-line cracks, will seriously affect the sensitivity. A damaged quad ow sensing grid must be replaced. It cannot be repaired.

• Do not disassemble the quad ow sensing grids from the capture hood while taking readings or balancing. The retaining structure is specically designed to accommodate loading due to normal operation.

• Under low humidity conditions, static electric charges may be encountered. These can be avoided by applying a suitable anti-static solution.

Do not use the handheld instrument/hood unit for liquid or gas mixtures other than air. No responsibility will be taken by Dwyer

• If stored under conditions outside normal operating range, allow

SETUP Battery Requirements

SAH Battery

WARNING

Match the lithium-ion battery polarity symbols on the battery to the polarity symbols inside the battery bracket. Failure to do so may result in personal injury or property damage. The orientation of the polarity symbols on the battery must match the orientation of the label inside the SAH battery bracket (+ to +, - to -). The positive terminal of the NCR18650B battery is also marked by a wide black band on the battery.

If a SAH-22-LB (less battery) was purchased, a 3.6 V NCR18650B lithium ion battery, or the equivalent, needs to be purchased from a local supplier and installed properly before the SMART Air Hood™ Balancing Instrument can be operational.

Before beginning use with the SAH, it is suggested that the unit be charged using the included charging cable. Plug the mini-USB end of the cable into the unit’s charging port and the USB end into the charging block. Ensure that correct polarity of the battery is followed.

Handheld Instrument Battery

The handheld instrument utilizes an internal rechargeable battery. The battery symbol in the top right of the screen shows the status of the battery.

When the handheld instrument is received, it will only have a partial charge. Use the included USB charging cable and charging block to charge the unit to full battery charge before using.

When the battery is low, the battery symbol will turn red. When this occurs, use the included USB charging cable to charge the unit.

Fire Hazard While Charging Battery

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