12
are almost equivalent.
● When adding or removing accessories, readjustment of the balance of the second
arm is necessary.
4.3.2 Adjusting the microscope
● Carry out this adjustment in your normal working position, switch to 0.3 x magnification
，
adjust the working distance and pupil distance of the microscope.
● Emmetropes/ operators who do not need corrective glasses
：
adjust the eyepiece to 0.
● Operators using his/her corrective glasses: adjust the eyepiece to 0.
● Ametropes/ operators who need corrective glasses who know their refractive powers
and perform surgery without wearing their glasses
：
adjust the eyepiece to his/her own
eyesight.
● Ametropes/ operators who need corrective glasses, who do not know their refractive
powers and perform surgery without wearing their glasses, use the following
procedure
：
Adjust both eyepieces to +5D
，
take the eyepiece and eyepiece tube from
the microscope, observe a distant object through the eyepiece, just like using a
telescope. Then rotate the diopter adjustment hoop until the image is clear. If
necessary, repeat this process for three times. Use the same method to adjust the
second eyepiece. Assemble the eyepiece and eyepiece tube back to microscope
body, tighten the fixation screw [10].
● Adjust the eye-cover until the whole visual field can be observed. Adjust the
magnification to 3x , when you feel the image is clear, return to the magnification you
want. The image is still clear when you change the magnification, but different in
depth of field for each magnification.
4.4 Inspection before use
Please inspect the following points before the operation:
－
Check if all fixation screws and lock pins have been tightened.
－
Turn on the power switch, then check the following items:
Illumination
：
● LED should be in good condition.
● When moving the second arm up and down, the LED light must switch on and off. The
LED turns off automatically when the microscope is in "parking" position.
● The LED power cable has been connected.
Set balance
：
● Ground must be level, so the column will be level.
● The damping of first arm, second arm, connecting arm (optional accessories) and the
Caution
：
The second arm must be held firmly before unscrewing the star handle
fixation screw [3].
Caution: It is necessary to make a form if several doctors share an operation
microscope. Every doctor’s diopter should noted. Keep the form where all those
doctors who use the microscope can find it.
