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Series-SAH
SMART AIR HOOD® HVAC Balancing Instrument with Wi-Fi & 12 ft Pole
- Patent pending Quad Flow Design Technology directs the circulating air patterns to provide a more even air flow that minimizes backpressure enabling accurate readings.
- Patent pending Predictive Balancing is a process that guides the balancing technician on setting the optimal flow set point for each sequential terminal. With the PredictAir¢ SAH application software, the balancing process takes much less time than traditional air balancing methods.
- The ergonomic design is ¼ of the height of a traditional legacy flow hood, and is much lighter and easier to work with than the existing bulky air hoods, providing greater maneuverability and less physical strain.
- One technician can complete air balancing by themselves.
- Wi-Fi wireless communication provides a range up to 200 yards, and provides a more stable connection in environments with steel and concrete than Bluetooth® communication.
- The iOS® version of the SAH software has the capability to drag and drop into third party software in split-screen mode.
- When plugging in directly to a mobile device to the SAH, the Wi-Fi radio is deactivated.
- The hardcase (included with SAH-22HC) gives users the ability to plug in all the instruments inside the case and then externally run a cord to the case so they can charge all instruments with one cord (extension cord not included).
- For linear diffusers (1´x4´) and HEPA filters (2´x4´), optional hoods are available that are designed to be installed quickly onto the standard 2x2 low profile design.
Product Overview
- Applications Fluid Measurement and Control
- Flow Rate Note Air flow, min - Supply: 40, Exhaust: 80 ; Air flow, max - Supply: 2000, Exhaust: 2000
- Series ID Series-SAH
- Software SMART Air Hood® application software, available on the Google Play™ store and the Apple App Store®
- Weight 5.75 oz
Supported Applications
The Dwyer SMART AIR HOOD® (SAH) Balancing Instrument is designed for commissioning, testing, adjusting, and balancing volumetric air flow in HVAC systems. The low-profile design facilitates operation in occupied spaces such as bathroom stalls, MRI machines, cubicles, and areas with tables or chairs, allowing the instrument to maneuver through doorways more easily than traditional hoods.
The series supports Predictive Balancing via its application software, a method that predicts optimal flow set points for registers and determines the adjustment order. The wireless Wi-Fi protocol enables real-time feedback on Android® or iOS® devices from distances up to 200 yards (183 m), allowing one operator to balance a branch without repeatedly ascending ladders.
Operating Conditions & Performance
The SAH measures air flow with the following documented performance parameters:
- Measurement Range: Supply: 40 to 2000 CFM (68 to 3398 m³/h) (19 to 944 l/s); Exhaust: 80 to 2000 CFM (136 to 3398 m³/h) (38 to 944 l/s).
- Accuracy: ±3% of reading ±7 CFM (11.9 m³/hr) (3.3 l/s)* for readings > 40 CFM.
- Resolution: 1 CFM (1.7 m³/h) (.5 l/s).
- Response Time: 1 s.
The instrument features Quad Flow Design Technology to control air flow and minimize back pressure, yielding superior measurement accuracy. The housing is constructed of polypropylene with overall dimensions of 24.074 in (611.48 mm) x 24.074 in (611.48 mm) x 5.543 in (140.80 mm) height, and the hood weighs 5.75 lb (2.6 kg). The device is intended for use with air only; it must not be used where an explosion hazard may exist or on life support applications.
Configuration Options
The series offers configurable options to accommodate various diffuser and register sizes, mounting requirements, and storage needs. Standard equipment includes a 3 ft (0.9 m) extendable pole, a 12 ft (3.7 m) extendable pole, a mobile device quick release pole adaptor kit, two low flow plugs, charging cables for SAH, an installation manual, and a NIST traceable certificate.
Power Supply:
- 3.6 V NCR18650B MH12210 Li-ion rechargeable battery (included; not included in international versions).
- (4) AA alkaline 1.5 V batteries (not included).
Housing and Case Options:
- Softcase SAH22 or hardcase SAH-22HC with storage for additional instruments.
- A-SAH-HC: Hard travel case option.
- A-SAH-SC: Soft travel case option.
Pole and Mounting Accessories:
- 3 ft (0.9 m) extendable pole (standard).
- 12 ft (3.7 m) extendable pole (standard).
- A-SAH-03P: Extendable pole, 2' to 4' (replacement pole).
- A-SAH-12P: Extendable pole 4.5' to 12' (replacement pole).
- Mobile device quick release pole adaptor kit.
Adapter Hoods and Base Kits:
- A-SAH-14S: Canvas hood attachment, 1' x 4' (0.3 m x 1.2 m), quick setup connection.
- A-SAH-24S: Canvas hood attachment, 2' x 4' (0.6 m x 1.2 m), quick setup connection.
- A-SAH-15S: Canvas hood attachment, 1' x 5' (0.3 m x 1.5 m); requires A-SAH-BK adapter base kit.
- A-SAH-33S: Canvas hood attachment, 3' x 3' (0.9 m x 0.9 m); requires A-SAH-BK adapter base kit.
- A-SAH-44S: Canvas hood attachment, 4' X 4' (1.2 m x 1.2 m); requires A-SAH-BK adapter base kit.
Calibration and Replacement Parts:
- A-SAH-CK: Replacement calibration kit includes sensor module and 4 quad flow sensing grids.
- A-SAH-PLUG: Low flow plug for blocking unused ports on the SAH frame when a diffuser/grill is smaller than the frame (for air flow from 40 to 125 CFM).
Compliance:
- CE, FCC, IC.
- RCM (-AU model only).
Software and Connectivity
The SMART Air Hood® application software is available on the Google Play™ store and Apple App Store™. Supported devices include UHH6 and newer handhelds, smart devices with Android® firmware version 8.0 and above, or iOS® version 14.1 and above. Firmware updates can be performed via the application using an Android phone.
Key Product Differences
The series is available in standard configurations including SAH-22 (with softcase) and SAH-22HC (with hardcase). The model number construction follows the format SAH - Size - Options, where "Size" denotes a 2' x 2' (0.61 m x 0.61 m) opening for code "-22", and options include "-IN" for international versions (excluding lithium battery) or "HC" for hard case.
Low flow plugs are utilized when the diffuser/grill is smaller than the frame to ensure accurate airflow measurement by blocking unused ports. The relative position of the diffuser/grill depends on its dimensions: units 16" x 16" or smaller should be positioned in the center of one edge with two opposite ports plugged, while those between 16" and 24" should be centered over the frame.
PDFs & Manuals
Software & Drivers
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