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MIC-200 Series / 1720
The total magnification can be easily calculated by multiply-
ing the magnification of the eyepiece by that of the respective
objective, as shown in the table:
Ocular
Objective
Magnification
10x
4x
40x
10x
10x
100x
10x
40x
400x
10x
100x
1000x
In MIC-200 series microscopes, the objectives are already
attached to the nosepiece.
Check that all the objectives are firmly attached. To do this,
grasp the knurled rings of the objectives with your fingers and
turn them to the right. Do not use a tool to tighten them. The
entire nosepiece with the 4 objectives can be turned by hand.
When you rotate the nosepiece, you will notice that the objec-
tives click into place. They do so in the correct position rela-
tive to the optical axis of the microscope.
Object table with mechanical stage
The microscope slide is placed in the specimen holder of the
mechanical stage and can be moved in X and Y direction.
The stage has a working area of 141 x 131 mm, the travel
range is 78 x 53 mm.
Coarse and fine adjustment
The focusing mechanisms for coarse and fine adjustment are
located on one axis (coaxial). On the fine adjustment knobs
there is a graduation. This can be used to measure the depth
of a specimen.
When the stage automatically slides down after using the mi-
croscope for some time, turn the adjustment ring on the in-
side of the coarse and fine adjustment knobs slightly in the
direction of the arrow. The coarse adjustment knob is tight-
ened to prevent the stage from sliding down.
Abbe condenser with iris diaphragm
Below the object stage is an Abbe condenser N.A. 1.25. The
condenser can be adjusted in height by turning. This allows
light to be focused on the specimen for contrast enhance-
ment. The condenser is already pre-centered.
The iris diaphragm with filter holder is located under the con-
denser. The light intensity can be adjusted by changing the
movable opening.
Illumination
The power-saving illumination is the reason why the micro-
scopes of the MIC-222 model do not need to be connected to
the mains all the time for operation, but can also be operated
independently of the mains, as they contain a rechargeable
Ni-MH battery. The illumination is a modern LED lamp with
the following specifications:
LED: 3W, brightness adjustable
Power supply: 100V-230V
C-mount adapter for the trinocular version MIC-231
A C-mount adapter is part of the scope of delivery of the MIC-
231 so that you can use each microscope camera which has
a C-mount thread.
5 WORKING WITH THE MICROSCOPE
Please follow the following instructions to achieve the best
results:
Adjustment of interpupillary distance and diopter dis-
tance
1. Adjusting the interpupillary distance
While looking through the eyepieces, adjust them until the left
and right fields of view coincide completely.
2. Adjusting the diopter
a) While looking through the right eyepiece, rotate the
coarse/fine focusing adjustment knobs to bring the specimen
into focus.
b) Look through the left eyepiece and rotate only the diopter
adjustment ring on the left eyepiece sleeve to bring the spec-
imen into focus.
Adjusting the lighting
For optimal contrast and resolution, please follow these
steps:
Place a micro slide on the stage and focus with the 4x
lens. The iris diaphragm is open.
Turn the condenser to the highest position.
Close the iris diaphragm until it is just visible at the edge
of the image field.
The microscope is now optimized for use with the 4x ob-
jective. Repeat this procedure with each additional magni-
fication to achieve the best balance between contrast and
resolution.
Attention: the maximum light intensity of the microscope
can damage your eyes if you use it with the 4x and 10x
objectives!
If you swap micro slides, start again with the 4x objective.
It is recommended to use slides of 1.0 to 1.2 mm thickness in
combination with cover glasses of 0.13 mm or 0.17 mm
thickness.
Battery
The MIC-222 microscope contains a 3.6V Ni-MH battery
pack.
A charging indicator is located on the side of the microscope.
It is red when connected to the power supply and green when
the battery is full. If the red indicator flickers,
the battery is not
properly connected to the circuit board.
The microscope's illumination can be powered by a battery
pack for 4 to 8 hours without an external power supply.
Using the S100x oil immersion objective
Please follow the following recommendations for using S100x
N.A. 1.25 oil immersion lens:
