Orved CUISSON VMOSV31 Operating And Service Manual page 16

Table of Contents

USING THE APPLIANCE

5.6.2

VAC+ FUNCTION

Once maximum vacuum as been obtained, a supplementary vacuum value (VAC+) can be set between 0 - 250 seconds; for normal applications,

a (VAC+) value between 3 and 5 seconds provides a final pressure of approximately 2 mbar. For certain applications, where a vacuum approaching

the absolute value is required, the (VAC+) function can be set between 15 and 30 seconds. For specific applications involving vacuum pack cooking,

where air must be removed from the heart of the product, this value can be increased to up to 250 seconds.

5.6.3

GAS FUNCTION

The GAS option is for packaging delicate products to prevent them from being crushed by the difference in pressure. To compensate for this

difference in pressure, the air is substituted by a controlled mixture of antioxidant gases, usually made up of 30% carbon dioxide and 60% nitrogen.

It also allows antioxidant gas mixtures to be used which help to prolong the shelf-life of the product. When choosing a gas mixture, consult the relative

brochures issued by the best gas producing companies.

The maximum percentage of gas allowed is 60%. This percentage refers to the volume of the chamber occupied by the gas. If the value exceeds

60%, the pressure applied by the sealing bar on the bag may not be sufficient and hence sealing could be imperfect. If the lid lifts during the cycle,

reduce the gas injection time. The length of the bag must be such that the opening (A) can be inserted in the dater (B), so that the bag itself is held

fast during the gas injection phase.

5.6.4

SEAL FUNCTION

Once the vacuum operation has been completed and any gas injection carried out, the appliance proceeds to seal the bag using the relative sealing

bar (C) equipped with an electric resistance. Sealing times vary depending on the quality of the bags, room temperature and the quantity of work to

be carried out. The seal line on the bag must always be uniform, distinct and without any melting. Set a sealing time which is suitable to the thickness

of the bag between approximately 2 and 4 seconds.

5.6.5

DATE FUNCTION

The appliance is equipped with two daters (D) for heat printing the date (E) and a 4-digit batch number (F) on the package. Printing times vary

between 6 and 9 seconds depending on the thickness of the bag. The date and batch number are set manually by extracting the stamp holder (G)

from the support (H).

5.6.6

PUMP / JARS FUNCTION

This function is used for preheating the pump before executing particularly demanding work, in order to improve performance and prolong the life-

expectancy of the pump. Furthermore, this function can be used for carrying out packaging on the outside of the appliance (Fig. 1), using embossed

bags with a length exceeding the maximum length specified for the dimensions of the vacuum chamber (JARS function).

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