Connected Inventions AirWits CO2 User manual

www.connectedinventions.com
User Manual
Connected AirWits CO2
R4
AirWits CO2
Connected AirWits CO2 is a connected
carbon dioxide (CO2), temperature, and
humidity metering device
Last updated July 2020

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Contents
3
3
5
Using this manual
Read me first
About the device
Assembling and Installation
Uplink: Payload description
Downlink
Downlink: Payload description
Downlink: Measurement Interval
Troubleshooting
Technical Specification
6
7
9
10
11
11
13
2

!
Thank you for choosing this Connected
Inventions device. This device will provide you
high-quality IoT with Connected Inventions’
exceptional technology and high standards.
This manual has been specially designed to
guide you through the functions and features
of your device.
Using this manual
• Before using your device, read the entire
manual and all safety instructions to
ensure safe and proper use.
• The descriptions in this manual are based
on the default settings of your device.
• The images used in this manual may differ
from the actual product.
• The contents of this manual may differ
from software provided by service
providers or carriers, and are subject to
change without prior notice.
• Access the Connected Inventions website
(www.connectedinventions.com) for the
latest version of the manual.
• Available features and additional services
may vary by service provider.
Read me first
3

.
!
• Applications on this device may perform
differently from comparable applications
and may not include all functions available
(by ie. downlink messaging features)
• Connected Inventions is not liable for
performance issues caused by third-party
applications or improper installation.
• Please keep this manual for future
reference.
• In case of malfunction, deliver the device to
the supplier. Do not open the cover.
• Do not remove packing material and do not
repack the device unless necessary.
Contact the shipping agent before
transportation. Inside the device there is a
battery which contains approximately 3.0 g
of lithium.
• Return the device to a disposal station
which collects electronics waste and
batteries.
• Protect the device from moisture, water,
and dirt.
Malfunction
Transportation
Disposal
Operation
4

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Connected Inventions AirWits CO2 is a
connected carbon diox i d e ( CO2),
temperature and humidity metering
device for real-time and accurate indoor
air quality monitoring with low lifetime
costs. The device measures and sends
CO2, temperature and humidity data once
in every 30 minutes. AirWits CO2 uses
world-wide Sigfox IoT network for data
transmission, enabling very low lifetime
cost and long battery life of five years. The
device is versatile, connected and
accurate, making it a reliable solution for
easy longterm and cost-efficient indoor air
quality measurement. The device has a
real carbon dioxide sensor and thus it is a
great solution for air quality measuring for
instance in offices, schools or private
homes.
About
5

!
Assembly & Installation
Save the identifier and the key
of the device. The identifier
and the PAC key are on the
label on the bottom of the
device. You can also read the
identifier and the PAC key
using the QR code.
Install the wall mount carefully
to the surface of your choosing
(e.g. to the wall).
Turn the device on using the
power switch at the bottom
of the device. The switch is
inside of the most left
opening.
Attach the device to the wall
mount.
1
2
3
4
6

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The device needs to be calibrated.
During the first 24 hours of initialisation
the device needs minimum of 1 hour of
fresh air in order to work properly. This
means that the device needs a
minimum of 1 hour after initialisation in
an environment without any CO2
Please note! Avoid placing device
closer than 15cm from any metal
or magnetic object, electric cables,
electric devices or selective glass
as this will dramatically reduce
radio performance as well as
battery life of the device.
!
7

Conversion formulas
Temperature < value > / 10 – 40 ( ºC )
Humidity < value > ( % )
Carbon dioxide < value > ( PPM )
Example
Message 0x02713203C3
Temperature 0x271 / 10 – 40 = 625 / 10 – 40 = 22,5 ºC
Humidity 0x32 = 50 %
Carbon dioxide 0x3C3 = 963PPM
!
BYTE
BIT
DESCRIPTION
0
1-2
Temperature
0
3
Humidity
4 - 5
Carbon dioxide level
Uplink: Payload Description
8

The settings of the device can be updated with the downlink message
• The device requests new settings every 50 messages
You must be very careful when you update the settings
• The settings affect both the subscription and the battery life of the device
The downlink message is optional
If the downlink message is not sent, the device continues with the current
settings
By default, the device measures and transmits every 30 minutes
The measurement and transmission intervals can be adjusted with the settings
• The device transmits if the carbon dioxide level has exceeded the threshold or
the temperature or the humidity have changed more than the threshold after
the previous transmission
Check that the new settings are valid before applying them
• The measurement interval cannot be longer than the transmission interval
• The transmission interval must be multiple of the measurement interval
If the new settings are not valid, the device continues with the current settings
BYTES
DESCRIPTION
1
Transmission interval
2
Measurement interval
3
Temperature delta threshold
4
Humidity delta threshold
5 - 6
Carbon dioxide threshold
7 - 8
Not applicable, set to zeroes
Downlink
0x026F = 623Dec
(623/10)-40 = 22,3
9

VALUE
INTERVAL
VALUE
INTERVAL
0
NOT APPLICABLE
8
NOT APPLICABLE
1
10 MINS
9
NOT APPLICABLE
2
20 MINS
A
NOT APPLICABLE
3
30 MINS (DEFAULT)
B
NOT APPLICABLE
4
1 H
C
NOT APPLICABLE
5
2 H
D
NOT APPLICABLE
6
NOT APPLICABLE
E
NOT APPLICABLE
7
NOT APPLICABLE
F
NOT APPLICABLE
Downlink: Transmission interval
VALUE
INTERVAL
VALUE
INTERVAL
0
NOT APPLICABLE
8
NOT APPLICABLE
1
10 MINS
9
NOT APPLICABLE
2
20 MINS
A
NOT APPLICABLE
3
30 MINS (DEFAULT)
B
NOT APPLICABLE
4
1 H
C
NOT APPLICABLE
5
2 H
D
NOT APPLICABLE
6
NOT APPLICABLE
E
NOT APPLICABLE
7
NOT APPLICABLE
F
NOT APPLICABLE
Downlink: Measurement interval
10

Conversion formulas
•Temperature delta threshold < value > / 10 ( ºC )
•Humidity delta threshold < value >( % )
• Carbon dioxide threshold < value >( PPM )
Default settings
• Message 0x 0303 0000 0000 0000
• Transmission interval 0x03 = 30 MIN
• Measurement interval 0x03 = 30 MIN
• Temperature delta threshold Not applicable
• Humidity delta threshold Not applicable
• Carbon dioxide threshold Not applicable
Example
• Message 0x 0301 0505 02BC 0000
•Transmission interval 0x03 = 30 MIN
• Measurement interval 0x01 = 10 MIN
•Temperature delta threshold 0x05 / 10 = 5 / 10 = 0,5 ºC
• Humidity delta threshold 0x05 = 5 %
• Carbon dioxide threshold 0x2BC = 700 PPM
11

!
Troubleshooting
• Ensure the power is switched on
• Check there is Sigfox network coverage available
• Ensure the device is not installed near metallic objects, electric
cables, electric devices or selective windows.
• Metallic roofs, steel reinforced concrete, underground location and
other obstacles can dramatically reduce radio signal.
• Check the operation mode of the device.
• Incorrect downlink configuration will affect the behaviour of the
product.
• Ensure the configuration is properly done.
connectedfinland
connected_fin
connectedinventions
www.connectedinventions.com
[phone]
Connected Inventions, Spektri Business Park, Kvintti Building,
Metsänneidonkuja 12, 02130 Espoo, Finland.
[email protected]
12

Description
Size
Weight
IP rating
Batteries
Battery capacity
Battery life
Sensors
Environment
Radio configurations
Antenna
Communication
Certification
Product Code
AirWits CO2 is a carbon dioxide, temperature and
humidity metering device.
100 x 100 x 27mm
170 g
IP20
3 x AA 3.6 V
12,300
5 years with 30 min measuring interval
GSS CozIR LP / Sensirion SHT30
Temperature 0 °C … 50 °C
Humidity 0 … 95 %
C02 0 … 5 000 ppm
Sigfox 868 / 902 / 920 MHz
Internal helical antenna
Uplink & Downlink
FCC, CE, Sigfox Class 0U
P_010A_2B91_01 (RCZ1)
P_010A_AC4B_01 (RCZ2)
P_010A_0054_01 (RCZ4)
CICO2-3005-R3 (RCZ1)
CICO2-3205-R4 (RCZ2)
CICO2-3405-R3 (RCZ4)
Technical Specification