GLYCO DOC GEL IMAGING SYSTEM - Bio-Rad
GLYCO DOC GEL IMAGING SYSTEM - Bio-Rad
GLYCO DOC GEL IMAGING SYSTEM - Bio-Rad
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Maintenance and Troubleshooting<br />
4.2 CLEANING THE EXCITATION FILTER<br />
The Excitation Filter is located immediately above the gel holder and just below the UV lamp. It is a glass<br />
square approximately 3.75” and is a metallic brown color. Follow the procedure below to replace the<br />
Excitation Filter.<br />
Note<br />
Wear lint and powder free gloves while holding the filter.<br />
1. Turn off the Computer and the Imager.<br />
2. Unplug the power cord from the back of the Imager and disconnect the Imager Interface Cable.<br />
3. Remove the Imager’s Top Cover.<br />
Slide out the gel holder to reveal two Phillips head screws obscured by the holder’s front panel. Four<br />
more Phillips head screws are located on the outer edges of the rear panel. Remove all six screws and<br />
then lift off the Top Cover. Save the screws.<br />
4. Detach the two Wire Bundles from the Reflector.<br />
Be careful not to bend or distort the Reflector.<br />
5. Remove the Reflector.<br />
Locate and remove the shiny tent-like reflector held in place by two thumb screws. Be careful not to<br />
bend or distort the reflector. You may wish to inspect the Excitation Filter and clean if necessary.<br />
6. Remove the UV Tube.<br />
Grasp and twist the UV tube 90° to release and remove it from the holder. Applying outward pressure to<br />
the back of the imager chassis may help.<br />
7. Remove the Excitation Filter.<br />
Locate and remove the thumb screws which hold the filter in place. Then, grasp the filter by its edges<br />
and remove it from the Imager.<br />
8. Clean the Excitation Filter.<br />
Use dry oil free compressed gas to blow particulates off the filter.<br />
The filter at this time should be free of any residue. If not, clean with 50% alcohol in water which has<br />
been stored in glass only. Alcohol which has been stored in plastic will leave a fluorescent residue on<br />
the filter.<br />
9. Replace the Excitation Filter with the most blemish free side facing downwards.<br />
10. Insert the new tube and close up the Imager.<br />
11. Create a new Bright Field file to complete this procedure.<br />
Refer to Section 4.4.<br />
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