ULTRASOURCE Ultravac 500, Руководство пользователя

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3.3
OPERA
TION
Operation with Digital Control Panel
The digital control panel is shown below, Figure 3.3. It allows the user more options than
the standard control panel. The embedded microprocessor controls each sequence of the
packaging operation. Settings for the vacuum, gas, and sealing are entered as parameters
through the keypad. This allows the user to custom program every step of the packaging
process. The precise vacuum and gas pressures are controlled by a pressure based sensor.
The vacuum pressure, gas pressure, and seal time are displayed on a large 16-character
LCD backlit readout, which is easily readable in all lighting conditions. As each sequence is
performed, the real-time pressure level or cycle time is displayed.
The digital front panel can save up to ten pre-programmed routines, which can be retrieved
at any time for specific packaging applications. With the supervisor security feature turned
on, these programs cannot be inadvertently changed.
The VACPLUS option allows the operator to run the pump from 0 to 20 seconds after the set
vacuum level is achieved.
The Gas Flush option allows the operator to introduce an inert gas into the chamber after
the vacuum stage. This option can be used as a filler to prevent crushing of the product
after sealing, as a means to prolong shelf life, or as a means to maintain desirable product
appearance.
The digital front panel has an auto stop, which will automatically seal if the preset vacuum is
not reached. This feature decreases the cycle time and optimizes the vacuum level of each
product.
The digital front panel, which includes the keypad, illuminated display, and microprocessor,
uses sealed components and is conformal coated in a moisture-proof coating. The digital
front panel meets or exceeds the requirements of NEMA 4. The front of the digital display is
sealed and flush for easy cleaning.
The digital control has both pulsed vacuum and pulsed venting options for fragile product.
The digital control has a maintenance screen for testing valves and a special loop option for
multiple vacuum/gas cycles before sealing.
Figure 3.3