Use of the S100x oil-immersion objective
The MT - 420 and MT - 430 microscopes are equipped with an S100X N.A. 1.25 oil immersion
objective. Please follow the below instructions on how to use this objective:
1. Remove the dust protection cap from the revolving nosepiece to mount the S100X objective.
2. Focus the image with the S40X objective.
3. Lock the slide protection handle.
4. Turn the revolving nosepiece so the S100X objective almost reaches the click-stop.
5. Put a small drop of immersion oil on the center of the slide (always use Immersion oil).
6. Now turn the S100X objective so that you feel the click stop.
7. The front lens is in contact with the immersion oil.
8. Look through the eyepiece and focus the image with the fine adjustment knobs.
9. The distance between the lens of the objective and the slide is very small!
10. In case there are small bubbles visible, turn the S100X objective a couple of times from
left to right so that the front of the objective moves in the oil and the bubbles will disappear.
11. After using the S100X objective, loosen the slide protection handle and turn the table
with the course adjustment knobs downwards until the front lens doesn’t touch the oil
any longer. Clean the front lens of the S100X objective.
12. Always clean the front lens of the S100X objective with a piece of lens paper that is
moistened with a drop of isopropanol. We recommend using lens paper and isopropanol.
13. Clean the slide after use as well.
Illumination MT-420 and MT-430 Series
The illumination has the following specifications:
• LED: 3W NeoLED for binocular and trinocular models
• Power supply: Primary AC 100 – 240 Volt-50Hz.
