2B Technologies AQSync User manual

Model AQSync Air Quality Monitoring Station Manual Rev. A-1
i
AQSync
Air Quality Monitoring Station
2BTechnologies
OPERATION MANUAL
Model AQSync
© Copyright 2021, 2B Technologies
All rights reserved.
Technical Support:
twobtech.com/tech-support.html
[email protected]m
[phone]

Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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Contents
IDENTIFICATION RECORDS v
PRINTING HISTORY vi
WARRANTY STATEMENT vii
Warranty Period................................................................................................................................vii
Warranty Service...............................................................................................................................vii
Shipping..................................................................................................................................vii
Conditions..............................................................................................................................viii
Limitation of Remedies and Liability ................................................................................................viii
WARNINGS ix
UNPACKING x
Shipping Box Contents ...................................................................................................................... x
A. Overview 1
A.1 The AQSync Air Quality Monitoring Station 1
A.1.1 Summary of the AQSync Measurement Suite.........................................................................2
A.1.2 Viewing and Acquiring Data with the AQSync.........................................................................3
A.1.2.1 Viewing AQSync Data via the Touchscreen ..............................................................3
A.1.2.2 Accessing AQSync Data via the Web and via USB...................................................3
A.2.1.3 Schematics of the AQSync’s Sample Flow and Data Flow........................................4
A.2 This User Manual 5
B. Assembly and Installation of the AQSync 6
B.1 Assembly 6
B.1.1 Install PM Sampling Inlet.........................................................................................................6
B.1.2 Install Weather Station ............................................................................................................9
B.2 Physical Installation 10
B.2.1 Placement..............................................................................................................................10
B.2.2 Secure the AQSync...............................................................................................................10
B.2.3 Orient the Wind Sensor .........................................................................................................10
B.3 Dimensional Drawings 11
C. Quick Start: Initiating Measurements with the AQSync 13
C.1 Power Up 13
C.2 Warmup and Battery Charging 14
C.2.1 Ozone (and Optional VOCs)..................................................................................................15
C.2.2 NO2/NO/NOx..........................................................................................................................15
C.2.3 CO2........................................................................................................................................15
C.2.4 CO .........................................................................................................................................15
C.2.5 Particulate Matter (PM)..........................................................................................................15
C.2.6 Power Relay Status...............................................................................................................15
C.2.7 Battery Charging....................................................................................................................16

Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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C.3 Real-Time Data Viewing on the Touchscreen 16
C.3.1 Main Screen...........................................................................................................................16
C.3.2 Graphing Screen....................................................................................................................17
C.3.3 Parameters Screen................................................................................................................17
C.3.4 Accessing Data via the Web and USB (Overview)................................................................17
C.4 Flow Rate Check 18
C.5 Communication Check (Cellular, WiFi) 19
C.5.1 Check Status of Cellular and WiFi.........................................................................................19
C.5.2 Choose Preferred Communication Method...........................................................................19
C.5.3 Choose WiFi Network............................................................................................................19
C.6 Set Upload Frequency and Instrument/Sensor Measurement Intervals 20
C.6.1 Upload Frequency .................................................................................................................20
C.6.2 Instrument and Sensor Outputs.............................................................................................20
C.7 AQSync Time and Date 21
D. Data Access and Control 22
D.1 Web Access 22
D.2 USB Access 26
E. Settings 27
E.1 NOx Module Settings 27
E.1.1 Adaptive Filter........................................................................................................................27
E.1.2 NO Calibration and NO2Calibration Parameters ..................................................................28
E.1.3 Flow Calibration Parameters (Cell, Ozone Flows) ................................................................28
E.2 CO2Module Settings 28
E.2.1 Output and Calibration...........................................................................................................29
E.2.2 Zeroing...................................................................................................................................29
E.3 Ozone Module Settings 29
E.4 CO Module Settings 30
E.5 Weather Transmitter Settings 30
E.6 Particle Settings 31
E.7 System Settings 31
E.7.1 Update Device.......................................................................................................................31
E.7.2 Static IP .................................................................................................................................32
E.7.3 Modbus Server ......................................................................................................................32
E.7.4 Date Format...........................................................................................................................33
E.7.5 Wi-Fi Settings ........................................................................................................................33
E.7.6 Power Settings.......................................................................................................................33
E.7.7 Port Assigner (Admin use only).............................................................................................34
E.7.8 Upload Settings .....................................................................................................................34
E.7.9 Data File ................................................................................................................................34
E.7.10 Password........................................................................................................................35

Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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E.7.11 About Form.....................................................................................................................35
F. Parameters and Graphing Screens 36
F.1 Parameters 36
F.2 Graphing 36
G. Calibration and Zero Checks 39
G.1 Calibration 39
G.2 Zero Checks 39
G.2.1 Ozone Monitor.......................................................................................................................39
G.2.2 CO2Instrument......................................................................................................................40
G.2.3 Particle Instrument.................................................................................................................40
G.2.4 CO Sensor.............................................................................................................................41
G.2.5 NO2/NO/NOx Module.............................................................................................................41
G.2.6 Weather Transmitter..............................................................................................................41
H. Maintenance and Troubleshooting 42
H.1 Maintenance 42
H.1.1 Replacement of CO2Scrubber..............................................................................................42
H.1.2 Replacement of Ozone Measurement Scrubber...................................................................43
H.1.3 Replacement of NOx and Ozone Inlet Filters........................................................................43
H.1.4 Replacement of PM Pump Filter............................................................................................44
H.1.5 Replacement of the CO/CO2Inlet Filter ................................................................................44
H.1.6 Replacement of NOx Instrument LED...................................................................................45
H.1.7 Summary of Maintenance Recommendations ......................................................................45
H.2 Troubleshooting 47
H.2.1 Overall System Checks .........................................................................................................47
H.2.2 Ozone Module Troubleshooting ............................................................................................47
H.2.3 NOx Module Troubleshooting................................................................................................49
H.2.4 CO2Module Troubleshooting ................................................................................................52
H.2.5 PM Module Troubleshooting..................................................................................................52
H.2.6 CO Module Troubleshooting..................................................................................................53
H.2.4 Service through 2B Technologies..........................................................................................53
I. Instrument Schematics and Photos 54
J. Replacement Parts 60
K. Service Log 61
APPENDIX 1: Instruments and Sensors of the AQSync 63

Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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IDENTIFICATION RECORDS
Record the following information for future reference:
Unit serial number: ______________________________________
Warranty start date: _______________________________________
(date of receipt)

Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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PRINTING HISTORY
This manual covers the AQSync Air Quality Monitoring Station used for measurement
of ozone (O3), nitric oxide (NO), nitrogen dioxide (NO2), carbon monoxide (CO), carbon
dioxide (CO2) and particulate matter (PM1, PM2.5, PM10) in air. New editions of this
manual are complete revisions that reflect updates to the instrument itself, as well as
clarifications, additions and other modifications of the text.
Revision A-1..........................................................................................December 2021
TRADEMARKS & PATENTS
2B Technologies, 2B Tech, 2B, AQSyncand AQSync Air Quality Monitoring
Stationare trademarks of 2B Technologies.
CONFIDENTIALITY
The information contained in this manual may be confidential and proprietary and is the
property of 2B Technologies. Information disclosed herein shall not be used to
manufacture, construct, or otherwise reproduce the goods disclosed herein. The
information disclosed herein shall not be disclosed to others or made public in any manner
without the expressed written consent of 2B Technologies.
© Copyright 2021, 2B Technologies.
All rights reserved.

Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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WARRANTY STATEMENT
2B Technologies warrants its products against defects in materials and workmanship.
2B Technologies will, at its option, repair or replace products that prove to be defective.
The warranty set forth is exclusive and no other warranty, whether written or oral, is
expressed or implied. 2B Technologies specifically disclaims the implied warranties of
merchantability and fitness for a particular purpose.
Warranty Period
The warranty period is one (1) year from date of receipt by the purchaser, but in no
event more than thirteen (13) months from original invoice date from 2B Technologies.
Warranty Service
Warranty Service is provided to customers via web ticket, email, and phone support,
Monday - Friday, from 9:00 a.m. to 5:00 p.m., Mountain Time USA. The preferred
method of contacting us is through our web ticketing software at:
twobtech.com/tech-support.html
This way all technical staff at 2B Tech will be alerted of your problem and be able to
respond. When you receive an email reply, please click on the Ticket link provided to
continue to communicate with us directly over the internet. The web ticket approach to
customer service allows us to better track your problem and be certain that you get a
timely response. We at 2B Tech pride ourselves on the excellent customer service we
provide.
You may also contact us by email at [email protected] or by phone at
[phone]. In either case, a web ticket will be created, and future
communications with you will be through that ticket.
Initial support involves trouble-shooting and determination of parts to be shipped from
2B Technologies to thecustomer in order to return the product to operation within stated
specifications. If such support is not efficient and effective, the product may be returned
to 2B Technologies for repair or replacement. Prior to returning the product, a Repair
Authorization Number (RA) must be obtained from the 2B Technologies Service
Department. We will provide you with a simple Repair Authorization Form to fill out to
return with the instrument.
Shipping
2B Technologies will pay freight charges for replacement or repaired products shipped
to the customer site. Customers shall pay freight charges for all products returning to
2B Technologies.

Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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Conditions
The foregoing warranty shall not apply to defects resulting from improper or inadequate
maintenance, adjustment, calibration or operation by the customer. Maintenance,
adjustment, calibration or operation must be performed in accordance with instructions
stated in this manual. Usage of maintenance materials purchased from suppliers other
than 2B Technologies will void this warranty.
Limitation of Remedies and Liability
The remedies provided herein are the Customer's sole and exclusive remedies. In no
event shall 2B Technologies be liable for direct, indirect, special, incidental or
consequential damages (including loss of profits) whether based on contract, tort or any
other legal theory. The AQSync Air Quality Monitoring Station manual is believed to be
accurate at the time of publication and no responsibility is taken for any errors that may
be present. In no event shall 2B Technologies be liable for incidental or consequential
damages in connection with or arising from the use of the AQSync Air Quality Monitoring
Station manual and its accompanying related materials. Warranty is valid only for the
country designated on the 2B Technologies quote or invoice.

Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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WARNINGS
ENGLISH
WARNING:
Any operation requiring access to the inside of the equipment, could result
in injury. To avoid potentially dangerous shock, disconnect from power
supply before opening the equipment.
WARNING:
This symbol, on the instrument indicates that the user should refer to
the manual for operating instructions.
WARNING:
If this instrument is used in a manner not specified by 2B Technologies,
USA, the protection provided by the instrument may be impaired.
ESPAÑOL
ATENCION:
Cualquier operación que requiera acceso al interior del equipo, puede
causar una lesión. Para evitar peligros potenciales, desconectarlo de la
alimentación a red antes de abrir el equipo.
ATENCION:
Este símbolo, en el instrumento indica que el usuario debería
referirse al manual para instrucciones de funcionamiento.
ATENCION:
Si este instrumento se usa de una forma no especificada por 2B
Technologies, USA, puede desactivarse la protección suministrada por el
instrumento.
FRANÇAIS
ATTENTION:
Chaque opération à l’intérieur de l’appareil, peut causer du préjudice. Afin
d’éviter un shock qui pourrait être dangereux, disconnectez l’appareil du
réseau avant de l’ouvrir.
ATTENTION:
Le symbol, indique que l’utilisateur doit consulter le manuel
d’instructions.
ATTENTION:
Si l’instrument n’est pas utilisé suivant les instructions de 2B Technologies,
USA, les dispositions de sécurité de l’appareil ne sont plus valables.
DEUTSCH
WARNHINWEIS:
Vor dem Öffnen des Gerätes Netzstecker ziehen!
WARNHINWEIS:
Dieses, auf dem Gerät weist darauf hin, dab der Anwender zuerst
das entsprechende Kapitel in der Bedienungsanleitung lesen sollte.
WARNHINWEIS:
Wenn das Gerät nicht wie durch die Firma 2B Technologies, USA,
vorgeschrieben und im Handbuch beschrieben betrieben wird, können
die im Gerät eingebauten Schutzvorrichtungen beeinträchtigt werden.
ITALIANO
ATTENZIONE:
Qualsiasi intervento debba essere effettuato sullo strumento può essere
potenzialmente pericoloso a causa della corrente elettrica.
Il cavo di alimentazione deve essere staccato dallo strumento prima della
sua apertura.
ATTENZIONE:
Il simbolo, sullo strumento avverte l’utilizzatore di consultare il
Manuale di Istruzioni alla sezione specifica.
ATTENZIONE:
Se questo strumento viene utilizzato in maniera non conforme alle
specifiche di 2B Technologies, USA, le protezioni di cui esso è dotato
potrebbero essere alterate.
DUTCH
OPGELET:
Iedere handeling binnenin het toestel kan beschadiging veroorzaken.
Om iedere mogelijk gevaarlijke shock te vermijden moet de aansluiting
met het net verbroken worden, vóór het openen van het toestel.
OPGELET:
Het symbool, geeft aan dat de gebruiker de instructies in de
handleiding moet raadplegen.
OPGELET:
Indien het toestel niet gebruikt wordt volgens de richtlijnen van 2B
Technologies, USA gelden de veiligheidsvoorzieningen niet meer.
CHINESE
警告：
任何需要接触设备内部的操作均可能造成人身伤害。为避免可能
的触电危险，请在打开设备前切断电源。
警告：
这个符号 在仪器上表示用户应参考说明书上的操作指南。
警告 :
如果仪器没有按照美国 2B 科技公司指定方式操作，仪器的保护
性能会减弱。
JAPANESE
警告：
機器の内部で操作する時、怪我できます。危険な衝撃を回避
するために、機器を開ける前に、電源を切断してください。
警告：
機器でこの記号 を見れば、マニュアルを読んでください。
警告：
この機器は 2B テクノロジー会社、USA の指定でしなければ
、機器の保護が損なえます。

Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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UNPACKING
Please read all the following information before attempting to install the AQSync Air
Quality Monitoring Station. For assistance, please call 2B Technologies at (303)273-
0559.
NOTE:
Save the shipping carton and packing materials that came with the
AQSync Air Quality Monitoring Station. If the AQSync Air Quality
Monitoring Station must be returned to the factory, pack it in the original
carton. Any repairs as a result of damage incurred during shipping will
be charged.
Shipping Box Contents
Open the shipping box and verify that it contains all of the items on the shipping list. If
anything is missing or obviously damaged, contact 2B Technologies immediately by
email at [email protected] or by phone at [phone].

A. Overview
Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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A. Overview
A.1 The AQSync Air Quality Monitoring Station
The AQSync Air Quality Monitoring Station is a comprehensive air monitoring package
that combines Environmental Protection Agency (EPA)-Federal Equivalent Method
(FEM) instruments for measuring ozone (O3) and nitrogen dioxide (NO2), with a weather
transmitter and other devices for high-quality yet affordable measurements of several
other air pollutants. The suite of measurement choices is customizable and includes
modules for ozone, nitrogen dioxide, nitric oxide (NO), particulate matter (PM1, PM2.5,
PM10), carbon monoxide (CO), and carbon dioxide (CO2), and VOCs.
The AQSync can be installed at any location where line power is accessible—for
example, on a light post or building, or at field sites.
The AQSync integrates sensors such as
those used in the 2B Technologies
Personal Air Monitor (PAM) with the FEM-
quality ozone measurements of the 2B
Technologies Model 108-L Ozone Monitor,
the FEM-quality NO2measurements of the
2B Technologies Model 405 nm
NO2/NO/NOxMonitor, instruments for CO2
and particulate matter, and a weather
transmitter in a rugged, weatherproof
enclosure.
We recommend reading this brief overview
in Section A before proceeding to use your
AQSync.
AQSync =
108-L Ozone Monitor
+
405 nm NO2/NO/NOxMonitor
+
CO, VOCs, CO2and PM devices
+
T, P, RH sensors
+
Weather transmitter
+
Rugged enclosure
+
Data transmission via cellular or WiFi
Weather
Station
Particulate
Matter
Sampling
NEMA
Enclosure
NO2/NO/NOx
Ozone (behind screen)
PM (behind screen)
CO, VOCs
CO2

A. Overview
Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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A.1.1 Summary of the AQSync Measurement Suite
For each measured quantity*, click on the left column to link to its website or user manual.
Method
Device
Range
Accuracy
O3
UV absoption, 254 nm
2B Tech 108-L (FEM)
0−100,000
ppb
1.5 ppb/2%
NO2
Direct absorbance, 405
nm
2B Tech 405 nm (FEM)
0−10,000 ppb
2 ppb / 10%
NO
Oxidation to NO2with
O3followed by
absorbance of NO2at
405 nm
2B Tech 405 nm
0−2,000 ppb
2 ppb / 2%
CO2
Non Dispersive
Infrared (NDIR)
absorbance, absolute
absorptiometer
PP Systems CO2Gas
Analyzer, Model SBA-5
0−1000 ppm
5 ppm
PM
(1, 2.5, 10
μm)
Right angle light scatter
particle detection using
a laser diode
Met One 83214 AQ
Mass Profiler
0−320,000
particles/L
±10%
CO
Amperometry
Alphasense CO-A4
0−50 ppm
0.1 ppm
VOCs
Photoionization
Detection
ION Science MiniPID2-
HS
0−3 ppm
0.5 ppb det. lim.
T
(contact R.M. Young
Company)
R.M. Young Company
ResponseONE 92000
Weather Transmitter
-40 − +60 °C
±0.3 °C
(-20 to +50 °C)
0.7 °C (other)
P
(contact R.M. Young
Company)
R.M. Young Company
ResponseONE 92000
Weather Transmitter
500 –1100
hPa
±0.3 hPa
(0 to +60 °C)
1 hPa
(-40 to 0 °C)
RH
(contact R.M. Young
Company)
R.M. Young Company
ResponseONE 92000
Weather Transmitter
0−100 %RH
±2 %RH
(5 to 95 %RH)
Wind speed
2-D Sonic anemometry
R.M. Young Company
ResponseONE 92000
Weather Transmitter
0-70 m/s
(156 MPH)
0-30m/s ±2%
>30 m/s ±3%
Wind
direction
2-D Sonic anemometry
R.M. Young Company
ResponseONE 92000
Weather Transmitter
0-360 degrees
azimuth
±2 degrees
*Some choices of the measurement suite are customizable and are specified at time of order.

A. Overview
Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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A.1.2 Viewing and Acquiring Data with the AQSync
A.1.2.1 Viewing AQSync Data via the Touchscreen
Real-time data can be viewed using the touchscreen of the AQSync. Individual screens
show the data for each of the AQSync measured quantities (ozone, NO2, etc.). In
addition, a graphing function allows viewing of the continuous data stream for any of the
measured species.
The screen functions are intuitive but are more fully explained later in this manual.
A.1.2.2 Accessing AQSync Data via the Web and via USB
As shipped from the factory, the AQSync is configured so that data from its instruments
and sensors are integrated and then transmitted via cellular or WiFi to the web every 5
minutes. This integrated web-based data stream is the primary data acquisition mode
for use of the AQSync.
The upload frequency of the measurements is set at a default value of 5 minutes at the
factory. However, if desired this setting can be changed by the user in the instrument’s
touchscreen menu. Shorter times are not generally recommended because of
prohibitive cellular costs.
Each data line contains the chemistry
measurements (ozone, NO, NO2, NOx,
CO, CO2, PM1, PM2.5, PM10),
meteorological measurements made by
the AQSync’s weather station
(temperature, pressure, relative
humidity, wind), location, time, and
status of the sensor package’s battery.
The data can be exported to a computer
for subsequent analysis.
Datafilesforeachmeasuredspeciesare
also stored internally for USB access.
At the factory setting of 5 minutes (or the
user’s chosen frequency), the AQSync
uploads the measurements and transmits
them to the web.
User accesses data on the web. Data may also
be viewed in real time on the AQSync
touchscreen, and data files for each measured
species can be downloaded via USB stick.
Schematic summary of the process

A. Overview
Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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A.2.1.3 Schematics of the AQSync’s Sample Flow and Data Flow

A. Overview
Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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A.2 This User Manual
After gaining an overview of the AQSync through the description given in Section A.1
above, the user can find more detail in this manual’s 7 major sections:
B. Assembly and Installation of the AQSync
C. Quick Start: Initiating Measurements with the AQSync
D. Data Access and Control
E. Settings
F. Parameters and Graphing Screens
G. Calibration and Zero Checks
H. Maintenance and Troubleshooting
Sections I through L of the manual contain labeled instrument photos, a list of spare
parts, and a service log for your recordkeeping.
The Appendix gives more detail about the individual components of the AQSync:
Appendix 1: Instruments and Sensors of the AQSync

B. Assembly and Installation
Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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B. Assembly and Installation of the AQSync
B.1 Assembly
The weather station and particulate matter (PM) sampling inlet are detached from the
AQSync for shipping, to protect them from damage. Carefully unpack them and install
them as shown here.
B.1.1 Install PM Sampling Inlet
Obtain the pieces of the Particulate Matter Sampling Inlet as shown below. After
following these steps, the PM Inlet will be installed as shown in the picture at the right.
The AQSync has an aluminum flange on the top, as shown at
right. The PM Inlet is installed into this flange.
Final Install
Core Shield Assembly
Nut
Washer
Rubber
Gasket
Inlet Cover
Heat
tape

B. Assembly and Installation
Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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A. Route the 2 wires on the bottom of the Core into the aluminum flange on the top of
the AQSync, and then slide the rod down into the AQSync a few inches. (The wires
will be connected later.)
B. Insert the bottom of the Core into the receptacle of the PM instrument mounted
inside the AQSync. Twist and push the Core through the o-ring that is inside the
receptacle, until it seats against the bottom of the receptacle. The PM
measurements will only be valid if the Core is sealed with the o-ring and seated
properly!
C. Insert the Shield Assembly over the Core and down over
the o-ring on the flange. Rest it on the aluminum flange.
D. Line up the holes in the Shield and the flange. Attach
the Shield with three 8-mm screws provided, using the
angled Phillips head screwdriver (also provided).
A
B
o-ring
C-D
holes to
align
D

B. Assembly and Installation
Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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E. Slide the rubber gasket, white plastic washer, and nut onto
the Core. The narrow end of the black rubber gasket
should point downward. Secure the nut to the Shield
Assembly.
F. Slide the Inlet Cover onto the top of the Core. This requires a hard push and twisting
to get the Core through the internal o-ring that is inside the Inlet Cover.
G. The assembly is now complete except for
attaching the wires of the Core. At this point
the wires from the Core should be dangling
loose inside the AQSync. Near the back of
the AQSync, you should see two other
disconnected wires inside the AQSync that
mate to these connectors. One is a 3-pin
connector and the other is a 4-pin connector.
Match them up with the appropriate Core
wires and make the connections.
Done!
o-ring
Disconnected wires
Connected wires
Female
connectors
in back of
AQSync
Male
connectors
of the Core’s
wires
E
F
G

B. Assembly and Installation
Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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B.1.2 Install Weather Station
The weather station is a ResponseONE Model 92000 Weather Transmitter made by
R.M. Young Company. For more information about the installation of the wind sensor,
please consult the manufacturer’s manual posted on our server and linked here:
https://twobtech.com/pdf/AQSyncInstruments/WeatherTransmitter_ResponseONE_92
000.pdf.
•Slide into metal fitting.
•Use a hex wrench to secure it
with the 2 set screws.
•Plug in as shown.
•Note that when the AQSync is
installed in its measurement
location, the weather station’s
marker must be oriented to
North. Use your smartphone to
access GPS information.

B. Assembly and Installation
Model AQSync Air Quality Monitoring Station Manual Rev. A-1
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B.2 Physical Installation
The AQSync Air Quality Monitoring Station is designed for outdoor environments and
meets NEMA 3 specifications for environmental protection. The polyester enclosure is
sealed to withstand rain and snow, and the enclosure is fitted with a weatherproof cable
gland for all cable connections.
B.2.1 Placement
Monitoring objectives will influence the choice of the location of the AQSync. In addition
to the air chemistry considerations, proper siting of the weather transmitter of the
AQSync must be considered. Locate the instrument away from obstructions, because
eddies from buildings, trees, or other structures influence the measurement. As a
general recommendation: If the height of the nearest obstruction is H, locate the
instrument at a distance of [10 × H] away from the obstruction, and at a height of [1.5 ×
H]. The weather transmitter user manual may be consulted for more information
(https://twobtech.com/pdf/AQSyncInstruments/WeatherTransmitter_ResponseONE_9
2000.pdf).
B.2.2 Secure the AQSync
We recommend that the monitor be mounted on a post, wall, or specially built stand.
The back of the enclosure has three holes along each of the vertical sides that can be
used for mounting. The holes are 1/4” in diameter and should be used with stainless
steel bolts and washers. The dimensional drawings are shown in Section B.3.
As shipped from the factory, two Unistrut mounting pieces are installed on the back of
the AQSync for use in handling the AQSync, and for possible use in mounting the
AQSync.
B.2.3 Orient the Wind Sensor
The wind sensor must be oriented to North:
•Use a hex wrench to loosen the set screws.
•Using your phone GPS to locate North, rotate the weather station as needed.
•Retighten the set screws.
The weather station has a built-in compass that can be used to complete this step if a
smartphone is not available. Please consult the user manual linked here for more
information on using the compass:
https://twobtech.com/pdf/AQSyncInstruments/WeatherTransmitter_ResponseONE_92
000.pdf
In the AQSync as shipped from the factory, the compass is turned off. Contact us if you
wish to enable the compass.