Aranet4 Sensor Battery Powered CO2 Meter User Manual
- June 6, 2024
- Aranet
Table of Contents
ARANET4 MANUAL
this manual is for Aranet4 sensor users and describes the device and its intended use.
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What is the Aranet4 device?
The Aranet4 sensor is a battery powered CO2 meter with additional measurements of temperature, relative humidity and atmospheric pressure*. The device is suitable for monitoring the CO2 level in your school, office or home environment.
Measurement data are displayed on power efficient e-ink screen allowing for long battery life. Additionally the device can provide a visual and sound notifications in case the CO2 level has exceeded high concentration level above 1400 ppm (level associated typically with complaints of drowsiness and poor air quality).
Uses the nondispersive infrared (NDIR) sensor to measure CO2 . The CO2 gas in the chamber absorbs infrared light and this absorption is measured by the sensor. The less light passes through – the higher the CO2 level. The CO2 gas absorbs only a specific wavelength of the light, thus an optical filter is needed.
Using the Aranet4 app on your smart devices it is possible to wirelessly
access the current and up to one week historical measurement data and adjust
the configuration of the Aranet4 device. The Aranet4 app allows connecting
several Aranet4 sensors to monitor their parameters remotely from one smart
device.
Additionally, up to 100 Aranet4 devices can be connected to the Aranet PRO
base station. Refer to chapter Using Aranet4 device with the Aranet PRO base
station.
*Atmospheric pressure data are available only on the Aranet app.
The Aranet4 sensor screen explained
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CO2 concentration level in ppm (parts per million)
-
Temperature of the air in Celsius or Fahrenheit. Refer to the switch positions of the Aranet4 in chapter Switch positions explained.
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Relative humidity of the air (RH%).
-
Battery level.
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Buzzer status. The speaker symbol is visible when buzzer function is activated. The conditions when buzzer should sound is adjusted using the Aranet4 application..
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Bluetooth status. If the Bluetooth symbol is visible, then Bluetooth connectivity function is enabled. Refer to switch positions of the Aranet4 in chapter Switch positions explained.
Make sure Bluetooth connectivity is enabled on your smart device if you would like to connect to the Aranet4 device. -
The Aranet radio status. If the Aranet radio symbol is visible, then the radio connectivity with Aranet PRO base station is enabled. Refer to switch positions of the Aranet4 in chapter Switch positions explained.
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CO2 indication mode. If the leaf symbol is visible, then CO2 level indication is set to plant mode (plants require higher CO2 level than humans). If the leaf symbol is not visible, then CO2
level indication is set to human mode. Selection of the mode can be done using the Aranet4 app. -
CO2 threshold level indication.
In case the CO2 indication human mode is selected:
• Green represents normal level (below 1000 ppm),
• Yellow represents average level (1000 to 1400 ppm),
• Red represents high level (above 1400 ppm).
In case the plant mode is selected:
• Green represents normal level (above 500 ppm),
• Yellow represents average level (500 to 300 ppm),
• Red represents high level (below 300 ppm). -
CO2 calibration mode indication. Symbol “A” is displayed when calibration is set to automatic. No letter is displayed when calibration is set to manual mode. Refer to switch positions of the Aranet4 in chapter Switch positions explained.
Switch positions explained
The Aranet4 device has switches that allow the user to adjust the preferences of device operation.
To access the switches, open the lid of the battery compartment. While batteries remain inserted, adjust the pin position (up or down) using the pin tool that has been supplied with the Aranet4 device (or any other suitable thin tool).
Switches can be adjusted while batteries are removed as well. Note that if you
remove the batteries, the measurement history will be erased. The changed
preference setting will be enabled once the batteries are reinserted.
The position of the switches has the following meaning:
AUTO / MANUAL – switch the CO2 calibration mode to either manual (default
position) or automatic mode.
The Aranet4 device is calibrated at the factory. However, the user can perform
CO2 calibration manually if required.
To initiate the manual CO2 calibration, change the switch position from MANUAL
to AUTO and back to MANUAL (maintain maximum 1 sec between each movement of
switch positions). Indication about started calibration and its progress will
be displayed on the screen. Do not interrupt the calibration process once it
has started.
During the manual calibration the Aranet4 device must be exposed to fresh air
(about 400 ppm of CO2 ) and the environment should be stable (not changing).
Maintain a distance of at least
1 meter from the device during the calibration process. In case of calibration
failure, ensure that the environment fits the requirements and repeat the
process.
Manual calibration can be initiated using the Aranet4 app as well.
In case of automatic calibration mode, the Aranet4 device needs to be exposed
to a fresh air at around 400 ppm (for instance, outdoors or room with good air
exchange) daily.
Use MANUAL calibration mode in case you are not certain which mode to use.
°C / °F – switch to either Celsius or Fahrenheit degrees.
Bluetooth / 0 – enable or disable (0) the Bluetooth connectivity.
Aranet radio / 0 – enable or disable (0) the Aranet radio connectivity.
Refer to chapter Using Aranet4 device with the Aranet PRO base station.
How to pair the Aranet4 to my smart device
The Aranet4 device can be connected to a smart device using the Bluetooth
connection and the Aranet4 app (iPhone and
Android based). Make sure Bluetooth connectivity is enabled on your smart
device and on your Aranet4 device.
To connect your Aranet4 device to your smart device follow the below steps:
- Launch the Aranet4 app and on the main page (My devices) add a new device by clicking on the (+) symbol.
- Select your Aranet4 device from the list.
- When prompted, confirm the start of pairing.
- Type in the 6 digit passcode that is shown on the display of your Aranet4 device.
Using Aranet4 device with the Aranet PRO base station
The Aranet PRO base station serves as a device for collecting, storing and
maintaining data from all types of Aranet sensors, including Aranet4. Each
Aranet PRO base station can connect
up to 100 sensors and stores the measurement data in its local memory for up
to 10 years.
Find out more about the Aranet PRO base station at www.aranet.com and follow the User Guide on how to pair Aranet sensors to the Aranet PRO base station.
To connect the Aranet4 device to the Aranet PRO base station, initiate the
sensor pairing mode on the Aranet PRO base station and initiate the pairing on
the Aranet4 device by changing the switch position from disable (0) to enable
(radio symbol).
Alternatively, while switch position is in enable position (radio symbol on
screen is visible), remove and reinsert the batteries.
Please note, that removing battery, the measurement history will be erased
from the Aranet4 memory.
Return and Warranty
In case of return or warranty claim, please contact your sales representative. For Terms and Conditions refer to www.aranet.com/support/
Aranet4 Datasheet
Measurements
CO2 (carbon dioxide), temperature, relative humidity, atmospheric pressure
Line of Sight Range
Aranet radio up to 3 km/ 1.9mi
BLE up to 10m/33ft
Operating environment Indoor use
Transmitter power 14 dBm
Frequency Depends on base station instructions
Measurement range| CO2
temperature
relative humidity
atmospheric pressure| 0-9999 ppm
-10°C to 60°C (14°F to 140°F)
0% to 100% RH
300-1100 hPa
---|---|---
Measurement accuracy:**| CO2
temperatur
relative humidity
atmospheric pressure| 0-2000 ppm: ±50 ppm or 3% of reading
2001-9999 ppm: ±10% of reading
±0.4°C (0.72°F)
±3%
±1 hPa
---|---|---
CO2 measurement calibration| Automatic or manual (at 400ppm)
---|---
Data Transmission| 1, 2, 5, 10 minutes
Data Protection| Data encryption
Power options| 2 AA Alkaline batteries (Zn/Mn02)
Battery life @20°C / 68°F| Up to 2 years
Operating temperature| 0°C to 50°C (32°F to 122°F)
Operating humidity| 0% to 85% non-condensing
Dimensions| 70 x 70 x 24 mm / 2.716” x 2.76” x 0.94”
Weight| 104g (3.7oz)
Construction| Polycarbonate
Protection class| IP20
Marking| CE
Compatible base stations| Aranet PRO (from v1.3.2)
Included| 2 AA Alkaline batteries
Part number| TDSPC003(EU)
- Please note the operating temperature and operating humidity range.
** For best accuracy, recommended operating range is 10°C to 40°C (50°F to 104°F) and 20% to 60% RH (non-condensing).
Prolonged operation beyond these ranges may result in a shift of sensor reading, with slow recovery time.
For more detailed information about Aranet products visit
www.aranet.com, contact your Aranet representative or
write to info@aranet.com.
Product specifications are subject to change without prior notice. Copyright ©
2019 SAF Tehnika, JSC. All rights reserved.