Orved VM Serie Mode D'emploi Et D'entretien page 61

VACUUM CHAMBER
PACKAGING MACHINES
6.2.3 PACKING LIQUID PRODUCTS
WARNING! With lowering of the pressure inside the vacuum chamber, the liquid boiling point is lowered. Water at 23.4
absolute mbar (corresponding to a vacuum of 97.66%) boils at 20°. Steam formation is evident from the bubbles forming
inside the bag. In this case, press the STOP button and reset the VAC parameter to such a level as to prevent bubble
formation.
The operation is carried out with a help of an inclined work top for liquids (A) available as optional.
1) Lower the lid holder: the plexiglas cover of the chamber opens.
2) Remove all the insertion plates and insert the inclined work top (A) in the chamber with the upper part facing the sealing bar and sliding retainer
(B) adjusted along the bag length.
3) Insert the bag containing the liquid to be packed inside the chamber, making sure that it is only half-filled (1/2) (Fig. 1).
Place it centered on the sealing bar, so that the open end projects by about 20mm beyond the bar.
4) Repeat the operations described in the "VACUUM CREATION/PROGRAMMING" paragraphs, adjusting the vacuum time to such a value as to avoid
boiling.
WARNINGS!
• THE PRODUCT TO BE PACKED MUST BE DRY AND COLD; CHOOSE A BAG HAVING A SHAPE AND THICKNESS SUITABLE
FOR THE SIZE, HARDNESS AND ANGULARITY OF THE PRODUCT.
• BEFORE STARTING WITH VACUUM PACKAGING OF PRODUCTS IN THE CHAMBER, CHECK TO MAKE SURE
THE CONTAINERS VALVE LEVER, ON THE LEFT SIDE OF THE MACHINE IF PRESENT, IS CLOSED.
• IN MACHINES WITH DIGITAL CONTROLS WITH SENSOR, CALIBRATION MUST BE CARRIED OUT BEFORE USING THE MACHINE
FOR THE FIRST TIME.
• THE ABSOLUTE VACUUM VARIES ACCORDING TO THE ALTITUDE AT WHICH THE APPLIANCE IS USED. AT SEA LEVEL,
IT IS EQUAL TO -1.0 bar, WHILE AT 1000 MT.b.s.l. IT IS REDUCED TO ABOUT 0.9 bar.
• VACUUM CAN ALSO BE CREATED IN CONTAINERS BY INSERTING THEM DIRECTLY IN THE VACUUM CHAMBER. IN
THIS CASE, THE SEALING TIME AND GAS FLUSHING TIME (IF ENVISAGED) MUST BE RESET.
• PRESSING THE BUTTON DURING THE VACUUM CREATION PHASE OR GAS FLUSHING WILL
CAUSE THESE FUNCTIONS TO BE INTERRUPTED AND THE APPLIANCE WILL PROCEED WITH THE NEXT PHASE PROGRAMMED.
• IF THE LID OPENS DURING THE GAS FLUSHING CYCLE, REDUCE THE GAS FLUSHING TIME.
• THE MACHINE IS CALIBRATED FOR A STANDARD SEALING TIME; IF A NUMBER OF SEALING OPERATIONS ARE PERFORMED
CONTINUOUSLY, THE SEALING BARS WILL GET HEATED. IT IS THEREFORE ADVISABLE TO REDUCE THE TIME.
• FOR A CORRECT CHOICE OF THE GAS MIXTURE TO BE USED DEPENDING ON THE FOODS TO BE PRESERVED, REFER TO THE
LEAFLETS DISTRIBUTED BY THE GAS PRODUCERS.
• USE OF GAS MIXTURES CONTAINING OXYGEN OR OTHER EXPLOSIVE GASES IS PROHIBITED.
• TAKE GREAT CARE TO PREVENT SUCTION OF LIQUIDS BY THE MACHINE; USE THE MACHINE FOR PACKAGING LIQUID
PRODUCTS OR PRODUCTS WITH HIGH MOISTURE CONTENT ONLY AFTER ACQUIRING THE NECESSARY EXPERIENCE BY
FOLLOWING THE INSTRUCTIONS GIVEN IN THIS MANUAL.
REV. 00 - Cod.: 1500154
A
•
Fig. 1
USING THE APPLIANCE
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Operation and maintenance manual / Ed. 10 - 2005
GB
B
•
G B
GB