Nilfisk-Advance ATTIX 33-01 IC, Service Manual

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E.8
Flow sensor calibration
Reconnect the mains plug and switch ON the
machine to start the suction unit.
WARNING : The upper section of the
machine contains live components.
Contact with live components leads to
serious or even fatal injuries.
Adjust/rotate the air restrictor (fig.4) until the
manometer is indicating the following under
pressure level:
165±5 mbar on 220
-
240V machines
120±5 mbar on 100
-
120V machines
The machine will now run. Depending on the
service condition the buzzer alarm might be ac-
tivated.
Keep the machine turned ON for 5
-
6 minutes
to pre
-
heat the air flow system. Check that the
manometer is still indicating the correct under
pressure level.
After pre
-
heating press the calibration switch
button connected to the PCBA (fig.5)
Observe that the machine begins to alternate its
internal buzzer if not already activated. This sig-
nals that the automatic calibration process is
started.
Let the machine run and wait approximately 1
minute until the suction unit re
-
starts.
The air flow system is now calibrated.
Switch OFF the machine and disconnect the
mains plug.
Disconnect the calibration switch tool from the
PCBA.
Make sure the PCBA is mounted correctly and
reassemble the machine.
4
Continued
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