Carbest 80248 GasCube Notice D'utilisation page 11

UK
OPERATION
With a slight pressure on the button of the GasCube's
housing it will be turned on. After switching the GasCube
a car test starts and the proper function of the electronics
and sensor technology will be checked. This is indicated by
a short flash of the LED's and a long beep. Directly after­
wards, the GasCube performs a calibration of the sensor
technology. This is shown by the flashing blue LED.
This phase lasts two to four minutes. If the calibration
is ready, the blue LED blinks permanently.
ALARM
If the GasCube perceives a gas concentration in the ambient
air, the device generates a pre­alarm. During the pre­alarm
an intermittent sound can be heard and the red LED starts
flashing. The pre­alarm takes 40 seconds. During this time
the GasCube checks how the gas concentration is changing.
If the gas concentration remains equal or higher after the
pre­alarm, an alert is triggered. The red LED lights steadily
and a continuous alert signal will be heard. In the event that
the gas concentration has disappeared after the pre­alarm,
the GasCube goes back into the standby mode and the blue
LED lights.