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Levenhuk MED 25 Microscopes

User Manual

Содержание MED 25

Страница 1: ...Levenhuk MED 25 Microscopes User Manual ...

Страница 2: ...htness adjustment knob 19 Binocular trinocular head locking screw 9 Aperture diaphragm adjustment rod 20 Third eyepiece tube trinocular models only 10 Coarse focusing knob 21 Tension adjusting ring 11 Fine focusing knob 2 1 3 2 1 Fig 1a Levenhuk MED 25B Fig 1b Levenhuk MED 25T D25T D25T LCD Fig 2a Levenhuk MED D25T 1 Digital camera 2 USB cable 3 Installation CD Fig 2b Levenhuk MED D25T LCD 1 Digit...

Страница 3: ...b until the specimen is about 3 175mm 1 8 away from the lens Looking into the eyepiece slowly turn the coarse focusing knob until you can see the image of the observed specimen Turn the fine focusing knob to make the image clear The fine focusing mechanism allows you to focus on the observed specimen while using high magnifications When you use an oil immersion objective the space between the spec...

Страница 4: ...ot use the adjustment screws to bring it to the center of the field of view Note The aperture of the objective lens used must be smaller than the aperture of the condenser Halogen bulb replacement Unplug the microscope from a power source Loosen the knurled screw on the underside of the microscope and open the panel to gain access to the lamp Make sure the lamp has cooled down and then remove it D...

Страница 5: ...double layer mechanical 140x140mm with a mechanical scale Focus system coaxial coarse 0 5mm and fine 0 002mm with rack and pinion mechanism coaxial coarse 0 5mm and fine 0 002mm with rack and pinion mechanism Condenser bright field Abbe N A 1 25 iris diaphragm and filter holder Abbe N A 1 25 iris diaphragm and filter holder Condenser dark field oil N A 1 36 1 25 with dovetail mount oil N A 1 36 1 ...

Страница 6: ...pening the base or changing the illumination lamp Regardless of the lamp type halogen or incandescent give it some time to cool down before trying to change it and always change it to a lamp of the same type Always use the power supply with the proper voltage i e indicated in the specifications of your new microscope Plugging the instrument into a different power outlet may damage the electric cir...

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