The calibration
progress.
Temperature below zero
can damage the sensor.
The recommended
operating temperature of
the sensor is 0 °C to 50 °C
(32 °F to 122 °F).
Six-digit pin code displayed
for wirelessly connecting
the device with your
smartphone to the Aranet4
app via Bluetooth.
The Aranet4 monitor is calibrated at the factory. However, the user can carry out CO²
calibration manually when needed. The general recommendation is to calibrate Aranet4 once a
year, but more often if it is used in dusty environments. During the manual calibration, the
Aranet4 device must be exposed to fresh outdoor air. Keep a distance of at least one meter
from the device during the calibration process – no humans, animals, or plants should be
closer to the device during calibration.
You can calibrate your Aranet4 manually with or without the app. To manually calibrate
Aranet4 with the Aranet4 app, pair your device with your smartphone (refer to the chapter
“How to pair Aranet4 to my smart device using the Aranet4 app” on page 5), open
Settings, and choose CO² calibration.
You can also calibrate the Aranet4 monitor manually without the app. To perform the manual
CO² calibration, flip the switch from MANUAL to AUTO and then back to MANUAL (flip the
switch quickly, with less than one second between each movement). Once started, the
calibration progress will be displayed on the screen of the device. In case of a calibration failure
message, make sure that the device is still in a fresh air environment and repeat the process
from the beginning. To learn more about the switch positions, see the next chapter
positions explained” on page 4.
If the automatic calibration mode is used, the Aranet4 device needs to be exposed to fresh air
at around 420 ppm (for instance, outdoors) for at least 8 hours each month.
CO² calibration
3
Aranet4 screen indications
The inverted screen
alerts when CO²
concentration has reached
the red threshold level.
Do not remove batteries
during a firmware upgrade.
The batteries are
empty. Replace them.
