2.2.7 Installing and replacing the
lamp
（
Fig.11,12,13
）
There are two types of illuminator available for this microscope, one type is halogen lamp
6V20W, the other is 3W LED.
During use or just after using, the lamp house and nearby parts will be very hot. Please set
the main switch to “O” (off) state before replacing, and make sure the bulb, the lamp room
and periphery areall cool enough to carry no burn. Then, you can do your replacing.
1. Loose the bolt and open the window on the bottom of the microscope base with
①
②
“ ”
一
type screwdriver.
2. Pull out the old bulb ,hold the new bulb after you wrap it with gauze or other protection
③
materials and insert its pin as deeply as possible into the jack in the lamp holder.
3. Close the window and tighten the bolt .
①
Please insert the bulb gently, or it will be damaged by excessive extrusion.
Do not touch the halogen bulb with bare hands. It will shorten the service life or cause it to
burst. If you leave fingerprints on the surface carelessly, clean it with a piece of dry soft cloth.
When replacing LED
：
1. Generally, the LED has long service life and is not easy to damage, if unfortunately it
damaged, purchase a new one from the supplier.
2. Remove the base plate from the bottom side of the microscope base with screw
⑥
driver ,loose the bolt to take the old LED off, replace with a new one.
⑤
3. Put the new LED unit back onto the bracket with the bolt and the base plate onto the
⑤
⑥
bottom side of the microscope.
When you take down the base plate, please do it gently and slowly, to avoid damaging
internal electrical wires.
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BIOLOGICAL MICROSCOPE