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THERMOSALD UPSCR_M_V3
08/2000
1
DESCRIPTION
1.1 GENERAL DESCRIPTION
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APPLICATION: Impulse heat sealers are used to seal polyethylene film, single-component plastic material or plastic
material in general rapidly and with great accuracy. These materials should reach their melting temperature and cool
down immediately in order to avoid deformation.
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OPERATING PRINCIPLES: To impulse-seal the plastic material, use a sealing bar with bands or wires supplied by a
piece of electronic equipment designed specifically for this application and capable of delivering the power required to
maintain the band at the desired temperature during the sealing operations. No additional probes are required, the
equipment simply reads the feedback signals from the bands and controls the heating current with a closed-loop circuit.
The temperature controller first receives a pre-heat signal from the outside so that the sealing bars can reach the
required temperature before starting work . A further signal is emitted to allow the correct temperature to be attained
when the sealing bars are brought together.
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MAIN FEATURES: The temperature controller allows the user to check the band characteristics and the state of the
machine and to locate faults by referring to the display console. The system is provided with an "automatic
calibration" function so that the band can be set up simply by pressing a key.
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DIAGNOSTICS: The temperature controller comes with an efficient diagnostics system capable of identifying faults
which have occured during the production process, indicating the cause and suggesting the remedies required to restore
normal operating conditions.
1.2 BLOCK DIAGRAM
MAINS
CONTROL
PANEL
TRANSF.
CONTROL
CIRCUIT
POWER
BAND
