Safety
Obligations of the operating company
10.06.2014 19
• Storage test: Store a good pack for a defined period and then re-
inspect.
• Stacking test: Stack good packs on top of each other for a defined
period and then re-inspect.
• Check the seal seam strength with a tensile testing machine.
• Low-pressure test (for vacuum packs).
• Measurement residual oxygen (for gas-flushed packs).
The following faults can result in a pack not being airtight:
• A leaky seal seam. Possible reasons:
– The inside of the packaging material is contaminated by product
in the seal seam area.
– The sealing time is too short.
• Damage to the pack caused e.g. by sharp-edged products.
Time of inspection
• After machine start-up.
• When a defined time interval was reached during running opera-
tion.
• When the pack size was changed.
• When other types of films or other film thicknesses are being used.
• When spare parts or wearing parts were built in.
• After faults to the machine were eliminated.
• After changes to the machine settings.
1.7.12 Pump protection function
The vacuum pump in the machine runs for a set time when the
chamber lid has been closed. During this time any undesired liquid in
the oil of the vacuum pump evaporates. This increases the lifespan of
the vacuum pump. When packaging moist or liquid products, the op-
erating company is obliged to perform this function at least once a
day at the end of a working day. The manufacturer assumes no liabil-
ity whatsoever for any warranty claims and damage claims of any
kind that result from the insufficient performance of this function.
NOTICE Danger of material damage!
Penetration by foreign matter (e.g. liquids, product residue, foreign
bodies) will damage the vacuum pump.
Damage can cause faults in the machine, which in turn can result in
reject packs.
¾ Cancel the evacuation process immediately if foreign matter is
sucked in.
¾ Change the oil in the vacuum pump.
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