Dwyer Instruments SAH0616 Users Manual

Series SAH SMART Air Hood™
Bulletin TE-SAH
The Series SAH SMART Air Hood™ is designed to measure air flow from HVAC air ducts and diffusers for balancing. The SAH is lightweight, rugged, and ergonomically designed for easy use and maneuverability. The interface is Wi-Fi direct to the UHH2 handheld and can transmit up to 200 yards (183 m). The unit includes an on/off switch and LEDs to alert when the unit is connected, transmitting, and when the battery is running low in order to avoid recording inaccurate measurements. The SAH SMART Air Hood™ is durable and easily stores in the included travel case.
INTRODUCTION
Do not use the UHH2/hood unit for liquid or gas mixtures other than air. No responsibility will be taken
by Dwyer Instruments, Inc. for any resulting damage to the unit or to the operators if it is used with corrosive or dangerous or explosive gas mixtures. When using the UHH2/hood to check air flow at ceiling diffusers, make certain that you can raise and hold the unit safely during use. This instrument is not classified as flameproof 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.
If stored under conditions outside normal operating range, allow 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 capture hood sensing grid to excessive loading during use or assembly. Any air flow other than through the calibrated sensing holes, such as any hair-line cracks, will seriously affect the sensitivity.
A damaged sensing grid must be replaced. It cannot be repaired.
Take care when fitting different sized canvas hoods of the protruding pins at the capture hood.
Do not disassemble the sensing grid from the capture hood. The retaining structure is specifically 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.
SPECIFICATIONS
VOLUME FLOW Service: Air. Units: CFM, l/s, m Range: 30 to 2000 CFM. Accuracy for Any Diffuser > 50 CFM:
±3% of reading ±10 CFM.
Resolution: 1 CFM TEMPERATURE Units: °F, °C, K. Range: 40 to 140°F (4.4 to 60°C). Accuracy: ±1.8°F (±1°C). Resolution: 0.01°C RELATIVE HUMIDITY Range: 5 to 95%, non-condensing. Accuracy: ±5% of reading (no
calibration required)
Resolution: 0.04% RH.
INCLUDED WITH THE SAH SMART AIR HOOD™
1. Base unit with 2' x 2' (600 mm x 600 mm) opening
2. UHH2 handheld
3. Storage/carrying case
4. 12' (3.66 m) extension pole
5. 3' (0.91 m) extension pole
6. UHH2 pole attachment
7. Pole pins (Pack of 3)
9. Charging cable and block for UHH2
10. 1' x 4' hood with assembly pack
3
/h.
ABSOLUTE PRESSURE Units: mbar, Pa. Range: 10 to 2000 mbar. Accuracy @ 25°C: ±2% of reading
(between 300 and 1100 mbar).
Resolution: 0.016 mbar Power Requirements: 3.7 V MH12210
lithium ion battery, included, user replaceable or (4) 1.5 V AA alkaline batteries, not included, user replaceable. Dimensions: 15" x 24" x 24" (381 mm x 610 mm x 610 mm).
Weight: 5.5 lb (2.5 kg) Agency Approvals: CE, FCC.
SETTING UP Powering the Unit
The SMART Air Hood™ is ready to use directly out of the box. No assembly process is required. The unit can be powered on by pushing the power button.
The following screen appears offering multiple options. The Mobile Meter® app is a tool designed to read from several Dwyer devices To use the SMART Air Hood™, tap on the AIR BALANCING button to access the Branch Menu.
Once the SMART Air Hood™ is on, blue and red lights blink intermittently. This blinking pattern means that the SAH is not connected to is corresponding handheld device.
Power on the handheld device by pushing the power button like any other smartphone.
Connecting to the SMART Air Hood™
Once the handheld device is on, access the Mobile Meter® app by tapping on the screen where the icon is located.
In the following screen, several options are available to the SMART Air Hood™. To continue with the connection, tap on the CONNECT TO SMART AIR HOOD button.
To connect to the SMART Air Hood™, tap the SEARCH button to locate it, and tap on the empty square of the found SMART Air Hood™ device.
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