1. Illumination
Turn on the power supply (turn the switch to -), then the bulb will be on. The lightness can be adjusted
by turning the adjusting knob.
2. Interpupillary range
Adjust the siendentopf binocular to make sure that view field in the right and left eyepiece is consistent.
3. Placing the specimen
Put the specimen in the stage and make the cover glass on it. Make the clips clamp them entirely. Two
slides can be put in the stage in the same time
4. Focus by 10X objective
Put the 10X objective into the optic path and focus by turning coarse and fine focusing knob
_ Turn the stage and focusing knob according to the direction shown in the picture
_ There is no coarse focusing knob in one side of stage
’s moving knob and in the other side
there are both coarse and fine focusing knob
_ Never turn the left and right focusing knob in the adverse direction at the same time. Never
turn the coarse focusing knob when the stage is in the end of removing range. Otherwise it will make
damage to the instrument
_ Detailed operation
It is difficult to do focusing if turning the focusing knob optionally. The specimen may be crushed when
100X objective is used. Please read the instruction carefully to avoid making damage to the cover
glass or objective
1_Put the 10X or 4X objective into optic path
2_Remove the stage to the top by turning the coarse focusing knob
3_Observe through the eyepiece and turn the coarse focusing knob slowly to let the stage down and
down till there is sharp image
4_Turn the fine focusing knob to focus finely Use the 10X objective or 4X objective firstly before 40X
and 100X objective. Turn the fine focusing knob to focus finely
5. Adjusting the diopter for eyepieces
Adjust the diopter ring according to user
’s diopter for left and right eyes. This function could make use
of advantages of objectives fully. Meanwhile it also can be react as focusing
1_Put the 40X objective in the optic path and turn the coarse and fine focusing knob to do focusing
2_Put the 10X objective (or 4X objective) in the optic path
3_Let your left eye observe through the left eyepiece and do focusing by the diopter adjusting ring in
left eyepiece
4_Repeat the above steps till sharp image can be observed by left and right eyepiece at the same
time.
6. Adjusting the upright position for condenser
Turn the lifting knob for condenser till it reaches the top position then fall it a little bit down. If there is
dispersion image in the view field, please remove the condenser a little bit of up and down to make the
