2
3.Horizontal working table: Place some specimen on two table plates, separately
drive left and right lifting knob(21) to keep the image clear. For moving left and right
the stage, rotate the knob(7); for moving forward and backward the stage , rotate the
knob(6).
4.Adjustment of separation line: The separation line should be a fine and black
straight one. Turn the separation line adjusting knob(12) to move the separation line,
you may get the left and right single viewfield observation, cutting-image and
superimposed-image comparison. When black and white line are wider , rotate the
black screw at the right of the knob(12), when width are not identical , rotate the
black one at the left of the knob(12). The two black screws are located at the back of
the instrument.
Fine and black Wider black line Width are not identical
Straight line
and white line
Fig.3
5.
Magnification Adjustment: For in use, both left and right objective should be at
the same magnification . To rotate the magnification changeover knob (11) to
select the required magnification. In order to observe a large viewfield, set 0.4X
low-magnification objective to the whorl (at the downside of objective) and
then renew focusing .
6.
Fig.4