
EN
9© Kemppi Oy / 1309
The unit ensures a constant supply of air. The microprocessor inside the unit
automatically regulates the motor speed to compensate the lter clogging
and the battery state.
If the microprocessor cannot maintain the adjusted airow, an acoustic
alarm signal can be heard and the LED diodes display RED in colour. If
possible, the microprocessor automatically reduces the airow to the next
lower level.
When the airow falls below the minimum level, the alarm intensies. Then
the user must stop working at once and change the lter or recharge/
change the battery.
!
To check the alarm function, perform the air ow test as explained in section
4.2: "Air ow test".
4.4 Checking the battery state
Press and hold the left button (–) for more than 1 second. The more red
coloured LED diodes come on, the higher the remaining battery capacity is.
> 1 s
9© Kemppi Oy / 1309
Comentarios a estos manuales