Manuale d’istruzioni / Instruction manual
Rev. 10 12/2018
29
VACUUM FUNCTION
The vacuum function activates the extraction of air from bags. The vacuum parameter is expressed in seconds and the
choice of the time must be suited to the real working requirements, as the time you need to draw all the air varies with
the size of the product that has to be packed.
GAS FUNCTION
The gas option allows the packing of delicate products preventing their crushing which usually occurs
because of the difference in pressure. To compensate this difference the air is replaced by a controlled
mixture of gas, usually made up 30% carbon dioxide and 70% azote . In addition you can use mixtures of
antioxidant gases which allow the lengthening of the preservation times. To choose the correct mixtures
consult the brochures of the best companies that produce gas.
The maximum percentage of gas allowed is 60%. This percentage represents the volume of the chamber
occupied by the gas. Over this 60% limit , the pressure that the sealing bar exerts on the bag could not be
enough and the sealing of the bags would be defective. The percentage is indicated by the vacuum gauge;
at -0.4 bar there is a volume of gas of about 60%; at -0.3 bar it is 70% and so on.
ADOPT THE FOLLOWING PRECAUTIONS
►
Never use gas mixtures which contain over 21% of oxygen; there is the danger of a deflagration.
►
Firmly secure the gas cylinders
►
After use, close the valve of the gas cylinder
SEALING FUNCTION
After having created the vacuum and having let the gas in, the appliance seals the bags by means of a sealing bar with an
electrical resistance. The sealing time varies according to the size of the bags, the room temperature and the quantity of
work to be done. The seal must be uniform, and well marked Usually for bags of 90/100 grams you should program the
parameter SALDATURA to 2 seconds; for bags of 150/100 program to 4 seconds.
HOW TO USE THE APPLIANCE
►
Lower the catch and lift the plexiglass lid of the dome: Position the maximum number of shelves that the chamber can
contain according to the size of the product that has to be packed
►
Put the bag with the product to be packed inside the dome, and place it centrally to the sealing bar so that the open
end sticks out about 2cm from the sealing bar. For those models which can seal more than one bag at the same time
because the sealing bar is long enough and for those which have various bars, place the bags at an equal distance
one from another.
►
If the appliance has the GAS option put the bag on the neck and connect the gas cylinder to the machine inserting the
pipe into the connection at the rear end. Open the valve of the cylinder and regulate the pressure of the gas cylinder
to 0.5-1.0 atm.
OPERATING AND PROGRAMMING INSTRUCTIONS
1)
SWITCHING ON
: switch on the appliance by means of the main switch
2)
VACUUM FUNCTION PROGRAM
: Turn the VACUUM knob to the desired value
3)
GAS FUNCTION PROGRAM
: Turn the GAS knob to the desired value
4)
SEALING PROGRAM
. Turn the SEALING knob to the right value
5)
STARTING THE WORKING CYCLE
: Lower the lid with both your hands exerting a light pressure on the corners of the
lid. The appliance will start the working cycle according to the programmed parameters
6)
THE END OF THE WORKING CYCLE
: The appliance automatically ends the cycle after the cooling phase of the
sealing bar and after air has come back into the chamber which enables the opening of the lid. Take the packed
product out and check the seal on the bag: it must be uniform and well marked. Eventually correct the values and
start the second cycle.
7)
INTERRUPTING THE WORKING CYCLE
: The working cycle can be interrupted by switching off the main switch, in
this case the cycle will be interrupted, but the air will not go back into the dome and the lid will stay closed. When you
switch the appliance on again the air will come back into the chamber and the lid will open.
ACTIVATION / INACTIVATION OF THE GAS FUNCTION
ACTIVATION: Turn the GAS knob on the front panel of the appliance towards “
1
”
INACTIVATION: Turn the GAS knob towards “
O
”
ACTIVATION/INACTIVATION OF THE SEALING BARS RIGHT AND LEFT
ACTIVATION:
Turn
the knob on the front panel of to “1” (
see page. 6, fig.2, specification 7
)
INACTIVATION: Turn the knob towards “O” . With this function you are able to use also only one sealing bar.
