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)
8. Charging cable and block for SMART Air Hood™
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.
Once the device has been selected, tap on the ADD button.
After adding the device, tap on the selected device. The following window
pops up with the option to DELETE, CANCEL, or CONNECT. Tap on
CONNECT so the handheld device can access data from the SMART Air
Hood™, after which a waiting screen will show up and the red and blue LED
lights will blink fast.
Attach the QUAD LOCK device on the handheld and the pole.
Once the handheld is attached to the pole, the SMART Air Hood™ is now
ready for use.
OPERATION
Placing the SMART Air Hood™ on a Diffuser
Place the SMART Air Hood™ on the diffuser and assure that there are no
leaks. Make sure to check every side and corner of the SMART Air Hood™
and verify that it’s sealing the diffuser.
Once the connection has been successful, the blue and red LED lights will
remain on. Press the back/return button to exit from the Air Flow Hood
Connection Activity screen of the handheld device to return to the Branch
Menu.
Assembling Accessories
Once the handheld device is connected to the SMART Air Hood™, the hood
has to be placed on a diffuser in order to measure flow. A pole and pin are
required to reach and place the SMART Air Hood™ on a diffuser.
The pole comes with an adapter that assemble to the SMART Air Hood™
using a pin. Position the pole in order to be concentric to the hole in the
mounting fixture of the SMART Air Hood™. Place the pin through the holes in
order to lock the pole to the SMART Air Hood™.
Once the SMART Air Hood™ is placed correctly, press the pole button to
adjust the pole length so it reaches the floor supporting the hood itself. If the
SMART Air Hood™ is not secure in place, readjust the pole length until it is
more rigid.
Measuring Flow
Once the SMART Air Hood™ is placed and supported by the pole, airflow can
be viewed on the handheld by tapping METER MODE.
In order to change from Step Down Three Cone Register diffuser style, simply
tap on the diffuser icon. The following screen will appear, showing the entire
library of diffuser styles.
The following screen shows airflow measurements using the default Diffuser.
Note that the default diffuser is Step Down Three Cone Register. In addition to
measuring flow, barometric pressure, relative humidity, and air temperature
can also be measured.
In order to read flow accurately, the correct diffuser style must be selected. To
determine the diffuser style, look through the translucent body of the SMART
Air Hood™ or remove the SMART Air Hood™ from the diffuser. In the below
example, airflow is being measured from a Plaque Register diffuser style.
Tap on the appropriate icon to select that diffuser style, which in this example
is the Plaque Register. Now the Plaque Register diffuser style is selected
assuring accurate flow measurements.
DO WE NEED MORE INFORMATION ABOUT ACTUALLY
TAKING THE MEASUREMENTS HERE?
FCC/INDUSTRY CANADA NOTICE
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may
cause undesired operation.
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation . This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between equipment and receiver
• Connect the equipment to an outlet on a circuit different from that to which
the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
This device complies with Industry Canada license-
exempt RSS standard(s). Operation is subject to the
following two conditions:
1. This device may not cause harmful interference;
2. This device must accept any interference received, including
interference that may cause undesired operation of the device.
Pursuant to FCC 15.21 of the FCC rules, changes or
modifications not expressly approved by Dwyer
Instruments, Inc. may void the user’s authority to operate the equipment.
RF NOTICE
This product complies with FCC OED Bulletin 65 and
Industry Canada’s RSS-102 radiation exposure limits
set forth for an uncontrolled environment.
This Class B digital apparatus complies with Canadian
ICES-003.
The antenna used for this transmitter must maintain a
separation of at least 20 cm from all persons and must
not be co-located or operating in conjunction with any other antenna or
transmitter.
Cet appareil est conforme á Industrie Canada une
license standard RSS exonérés (s).
Son fonctionnement est soumis aux deux conditions suivantes:
1. Cet appareil ne doit pas provoquer d’interférences,
2. Cet appareil doit accepter toute interférence reçue, y compris les
interférences pouvant provoquer un fonctionnement indésirable de
l’appareil.
Ce produit est conforme aux limites
d'expositions aux rayonnements définies pour un
environnement non contrôlé du Bulletin 65 FCC OET et RSS-102 Industry
Canada.
MAINTENANCE
Some simple routine maintenance after each use will ensure that the
instrument will function correctly for many years.
• Remove any moisture droplets using a clean, absorbent cloth/paper
before disassembling and storing the unit.
• Remove the battery if the unit is to be stored, unused for an extended
period of time.
• Always store and transport the unit carefully. Store in dry conditions.
• DO NOT immerse the instrument in water.
• DO NOT use abrasive cleaning products on the hood. The instrument can
be wiped clean with a damp cloth.
• DO NOT use abrasive cleaning products on the Pitot tube grid, which may
block or damage the grid. The grid may be CAREFULLY wiped clean with
a cloth. Ensure Pitot tube holes are not contaminated with moisture.
• DO NOT use abrasive cleaning products that may damage the grid, or
may leave a residue in or around the holes.
• Check periodically for damage or any visible cracks.
• Take care to not damage or obscure the calibrated holes in the tubes.
This can seriously affect the measurements obtained.
Capture hood fabric can be wiped clean with a damp cloth, if necessary, and
moisture droplets dried with an absorbent cloth/paper. Periodically, wash in
cool water using a mild detergent. Drip dry, ensuring it cannot become caught
in any sharp objects.
The fabric used is impermeable, tough, and very resistant under normal use.
In the event that the fabric becomes worn or torn, replace the fabric hood
immediately. A damaged hood will seriously affect the measurements taken.
Anti-static solution can be applied to the instrument by using a clean, lint-free
cloth and carefully rubbing it over the instrument case and window.
Note: This is normally only necessary when working in low humidity
conditions.
REPAIR
The Series SAH SMART Air Hood™ is not field serviceable and is not possible
to repair the unit. Field repair should not be attempted and may void warranty.
WARRANTY/RETURN
Refer to “Terms and Conditions of Sale” in our catalog and on our website.
Contact customer service to receive a Return Goods Authorization number
before shipping the product back for repair. Be sure to include a brief
description of the problem plus any additional application notes.
FR# 444357-00
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