LERICA C254 Mode D'emploi page 91

Rev. 03 - 07/2015 - Cod. 1501151 - Instruction manual for vacuum chamber packaging machines Mod. C254-C308-C312-C412-C420
7) Perform the preliminary cleaning operations of the vacuum chamber and the lid.
We recommend them to be cleaned once again in order to remove possible contaminants deposited though
accidental contact with sources of risk after the machine has been unpacked.
Clean the vacuum chamber and lid with a soft cloth dampened with drinking water. It is recommended not to
use aggressive detergents, steel wool, scrapers or abrasive, acidic or aggressive substances, which could
irreparably damage the internal surfaces of the vacuum chamber. Once cleaned, rinse thoroughly with a
soft cloth dampned with drinking water.
8) Calibrating the vacuum sensor.
proceed as follows:
• Turn the machine on using the "ON/OFF" main switch.
• Hold the vaC/GaS key down for 4 seconds.
• The display will show "tar".
• Lower the lid.
• The machine starts the cycle, which ends after a few se-
conds.
• The lid opens at the end of the calibration.
• The machine returns to the default program or the previously
set program.
WaRNING!
Sensor calibration must be repeated each time the machine is moved to a place with a diffe-
rent altitude.
9) activate / deactivate the buzzer.
To activate or deactivate the buzzer, proceed as follows:
Turn the machine on, pressing the StOP key at the same
time.
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