Connected Invention Airwits C02 Accurate Air Quality Monitoring User Manual

Airwits C02
User manual Airwits C02 Accurate Air Quality Monitoring

Using this manual

Thank you for choosing this Connected Inventions device. This device will provide you highquality 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.

Read me first

• 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.
• 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.
• Maintenance
• In case of malfunction, deliver the device to the supplier. Do not open the cover.
• Transportation
• 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 g of lithium.
• Disposal
• Return the device to a disposal station which collects electronics waste and batteries.
• Operation
• Protect the device from moisture, water, and dirt.

AirWits CO2

Connected Inventions AirWits CO2 is a connected carbon dioxide (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.

Assembling and 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.
• 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 emissions.

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.

Uplink: Payload description

Conversion formulas
– Temperature < value > / 10 – 40 ( C )
– Humidity < value > ( % )
– Carbon dioxide < value > ( PPM )

• Example

– Message 0x02713203C3
– Temperature 0x271 / 10 – 40 = 625 / 10 – 40 = 22,5 C
– Humidity 0x32 = 50 %
– Carbon dioxide 0x3C3 = 964 PPM

Downlink

• 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

Downlink: Transmission interval

Downlink: Measurement interval

Conversion formulas
– Temperature delta threshold < value > / 10 ( C )
– 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 C
– Humidity delta threshold 0x05 = 5 %
– Carbon dioxide threshold 0x2BC = 700 PPM

Troubleshooting

In case the device is not working properly or not at all:

• 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 to behaviour of the product
• Ensure the configuration is properly done

Connected Invention’s customer support can be reach by phone +358 10 3115800 or trough mail support@connectedfinland.fi.

Technical specifications

Description| AirWits CO2 is a carbon dioxide, temperature and humidity metering device.
---|---
Size| 100 x 100 x 23 mm
Weight| 170 g
IP rating| IP20
Battery pack| 3 x AA 3.6 V
Battery capacity| 12,300
Battery life| 5 years with 30 min measuring interval
Sensors| GSS CozIR LP / Sensirion SHT30
Environment| Temperature 0 °C … 50 °C
Humidity 0 … 95 %
C02 0 … 5 000 ppm
Radio configurations| Sigfox 868 MHz (RCZ1), 902 MHz (RCZ2), 920 MHz  (RCZ4), 868.8 MHz  (RCZ7)
Antenna| Internal helical antenna
Communication| Uplink
Downlin
Certifications| CE, Sigfox Class 0
P_010A_2B91_01 (RCZ1)
P_010A_2B91_01 (RCZ2)
P_010A_0054_01 (RCZ4)
P_010A_2B91_01 (RCZ7)
Product code| CICO2-3005-R3 (RCZ1)
CICO2-3205-R4 (RCZ2)
CICO2-3405-R3 (RCZ4)
CICO2-3705-R3 (RCZ7)

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