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3
Operation
3.1 Adjusting illumination
1) Connect the power cord and turn on the main switch.
2) Turn the variable intensity dial to increase or decrease the brightness.
3.2 Placing specimen
1) Place the slide on the mechanical stage.
2) Use the slide holder to gently secure the slide.
3) Turn the X and Y translational knobs to position the specimen for viewing.
Caution:
Be sure not to allow an objective to touch a specimen slide when changing
objectives.
3.3 Adjusting interpupillary distance
While observing with both eyes, hold the left and right eyepiece tubes then slowly
slide the tubes in and out. The interpupillary distance is correct when the left and
right fields of view converge completely into one
image.
3.4 Adjusting eyepiece diopter
1) Rotate the 10x objective into position.
2) Rotate the diopter ring on the right eyepiece tube
until its numerical value is the same as your
interpupillary distance, for example, 65 in the
right figure.
3) Close your left eye and bring the specimen into
focus following the focusing procedures in 3.5.
4) Close your right eye and bring the same
specimen into clear sharp focus by adjusting the
diopter ring on left eyepiece tube only. Do not
use focus knobs at this step.
5) Since both sides are adjustable, you may also do
the above in the opposite way, in other words, left
eye first and right eye second.
3.5 Focusing
1) With the 10x objective in position, raise the mechanical stage using the coarse focus
knob until the specimen is close to the objective
2) Turn the coarse focus knob until the specimen is in focus.
3) Use the fine focus knob to obtain a sharp image.
4) You may now switch to another magnification objective.
Tips:
To prevent your specimen slide from making contact with an objective, raise the
stage to its highest position without contacting the 100x objective, then tighten the
upper limit mechanical stage lever.
3.6 Adjusting condenser
1) Turn the condenser focus knob to raise or lower the condenser.
