ASC6050ZK Precise Vacuum UV Exposure Unit |
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UV
Exposure Unit is an absolutely necessary equipment during screen plate
making process.
ASC6050ZK Precise Vacuum UV Exposure Unit is equipped with special UV lamps and auxiliary vacuum suction device. After putting the screens and well printed transparency film on the glass, close its cover and let it work after set the needed vacuum and exposure time, then it will make the screens and transparency film close on the glass tightly by evacuating the air of the vacuum chamber emerging from the rubber blanket. When the set time is up, it will deflate automatically, then the exposure is finished. Please cut off the power supply. It has the same exposure effect with the exposure unit exposed of iodine gallium light. Even if its exposing time is a little longer, but because of its small volume, light weight, low cost and easy transportation, which is much fit for small business and family workshop for making screens with high precision. Special Tips:
The
vacuum pumping area (sizes of the rubber blanket) is 19.7¡±*23.6¡±
(50*60cm);
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Working Principle |
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Screen printing screens are coated with a light sensitive emulsion using a scoop coater. When the emulsion is dry, place a positive print of your image on the screen. Once you burn the screen, the emulsion that did not get any UV will wash out of the screen exposing the tiny pin holes. The surrounding areas that were exposed to UV will be cured. Hence the ink will pass through screen onto your substrate. | |
Main Features |
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Rational design & easy operation: based on humanity and practicality
principles, with the elaborate designed table type structure, it¡¯s much
easier for screen exposure with high precision. |
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Essential Parameters |
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Input
Voltage: 110V
¡ñ Exposure area: 19.7¡±*23.6¡± (50*60cm) ¡ñ Optimum screen exposing size is within 15.7¡±*19.7¡±*1.6¡± (40*50*4cm) by the outer sizes. ¡ñ Vacuum Degree: £0.08MPa; ¡ñ Illumination Uniformity: 85% ¡ñ Lamp Power: 160W; ¡ñ Vacuum Pump Power: 60W ¡ñ Vacuum Time Setting Ranges: 0-999s ¡ñ Exposure Time Setting Ranges: 0-999s ¡ñ Net weight: 51Lb / 23kg; ¡ñ Shipping Weight: 75Lb / 34kg ¡ñ Machine Size: 30¡±*28¡±*7¡± (76*72*18cm) ¡ñ Package size: 33¡±*32¡±*10¡± (83*81*28cm) ¡ñ How to change the tubes |
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Operation Instructions |
1. Connect the power supply; Turn on the switch of ¡°POWER¡±;
2. Set the vacuum pumping time
(For first-time users, please put an empty screen in the middle of the rubber inner cavity, just set 40 seconds for test; if the pointer of the vacuum gauge could reach or pass the middle of the green area, that¡¯s ok. If not, please extend the time and test again until having reached the requirement.) |
3.
Set the exposure time: 1) Press ¡°EXPOSURE¡±, the left indicator light (red) is lit up; 2) Press ¡° + ¡± or ¡° ¨C ¡± in the ¡°TIME CONTROL¡± area to set the exposure time according to your needs. (Exposure time varies according to the coated photosensitive emulsion. Please just set 300 seconds for test and then reset a suitable time according to the exposure effect.)
4.
Once finished the above settings, you could start exposure just as
follows: 5. Functions of other keys: 1)
¡°RESET¡± for cancelling the previous settings: if you want to reset the
vacuum / exposure time, just press ¡°VACUUM¡± |
Breakdown Maintenance |
1. If the digit was not displayed once turned on the
switch: b. Please check whether the bottom fuse wire is loose, burned-out or not;
2. If the vacuum pump didn¡¯t work after putting the
screen on the glass, closing the cover and pressing the ¡°STRAT¡± button:
3. If it didn¡¯t reach the requirement even the vacuum
pump works well: b. Please check whether the rubber blanket and its edgings were good and seal or not. If there were some splits on the rubber blankets or edgings, or some cracks of the edging adhesives, please fix them up with the sealing adhesive.
4. If the lamps were not lit up: a. Please check whether your voltage was too low or not; b. Please check whether the lamp ends were blackened or not caused by lamp ageing; c. Please check whether your set exposure time was 0 second. d£®Please check whether the ballast was broken or not. ¡¡ |
Other Notes |
1) Please cut off the power supply when you need to change the lamp or the ballast! 2) Avoid contact with hard objects to prevent glass surface scratching. 3) Cleaning now and then according to your using frequency and operational environment, especially for the glass, vacuum rubber blanket and edgings. |