Operation; Adjust The Observation Head; Place The Specimen On The Stage; Lamp Settings - VWR VisiScope 200 Serie Manual De Instrucciones

Operation

Adjust the observation head

Loosen the lock-screw, turn the observation head to a comfortable position for observation, and then lock the
lock-screw.

Place the specimen on the stage

Lock the specimen slide on the mechanical stage using the slide holder. Ensure that the specimen is centred
over the stage opening by adjusting the coaxial stage controls.

Lamp settings

The microscope is fitted with a white LED illuminator. Before turning on the light, read the section about elec-
trical safety precautions. Insert the plug of the power supply into the jack on the rear and turn on the ON/OFF
switch. Turn the brightness adjustment knob to a brightness suitable for observation.

Adjust interpupillary distance (binocular models)

Hold the right and left side of the observation head with both hands and adjust the interpupillary distance by
turning the two parts until one circle of light can be seen, when looking down the microscope with both eyes.

Focus and diopter adjustment

Rotate the coarse focusing knob to bring the slide into focus using a low magnification objective. Adjust the
fine focusing knob to get the image sharp and clear while observing with your stronger eye, then turn the di-
optric adjustment ring on the opposite eyepiece until a sharp and clear image can be observed also with the
other eye. Turn the tension adjust knob to achieve a suitable focus tension without the specimen dropping out
of focus. When the image is in focus, turn the nosepiece to choose the objective you need.

Condenser adjustment

Raise or lower the condenser through the knob to obtain a clear and uniform illumination of the sample. To
center the condenser: completely close the iris diaphragm. Using the condenser centering screws, move the
diaphragm in the center of the field of view. Then gradually expand the diaphragm until it is tangent to the
edges of the field of view. If necessary, you can perform an additional adjustment. The condenser is centered
when the edges of iris diaphragm are tangent to the field of view.

Set the numerical aperture

Adjust the aperture of the iris diaphragm to set the numerical aperture of the illuminator, thus controlling im-
age contrast and resolution.

Photo and video capture

To use a camera, for photo or video capturing, connect it to the trinocular tube using the proper adaptor.
Please refer to the camera manuals for further details.
7