5
STEINDORFF
®
5. You should be aware of the cleaning procedures to be used after the use of oil. Wipe oil from the oil
immersion objective, and from any other parts in need of cleaning. Clean lenses immediately with
xylene after use. Leaving oil on the lens may lead oil to seep behind and harden on the inside of
the lens.
To obtain a bright and clear image, it is import to adjust the illumination system. The condenser
position and the iris diaphragm size should match with objectives of different magnifications. Turn the
condenser focus knob to shift the condenser. It needs to raise the condenser when using the high
magnification objective, and to decline when using the low magnification one.
The aperture diaphragm is used to adjust the numerical aperture instead of brightness. Generally,
setting the size of the aperture diaphragm at 70%
～
80% of the numerical aperture, you can obtain a
clear image with enough contrast.
For observing a batch of specimen of the same type, use the limit bolt to locate general position of
the stage to simplify operation. In this way, the specimen can come into focus rapidly just by
turning the coarse focusing knob.
Note:
specimens of the same type means they are same in the thickness of slide, cover slip and
specimen slice.
7. Maintenance
1. Carefully open the box, avoid the accessories, like lens, dropping to ground and being damaged.
2. All the lenses have been well checked and adjusted. It is forbidden to disassemble them by user
self.
3. The nosepiece and coarse/fine focus unit have a compact and precise frame, so please don
’t
disassemble them as possibly as you can.
4. Keep the instrument clean, wipe dust regularly, apply a little non-corrosive grease in the sliding
parts and be attention to avoid contaminating the optical elements especially.
5. Place the instrument in a cool, dry position. When not using the microscope, keep it covered with
a dust helmet. Make sure the lamp socket is cool before covering the microscope.
8. Troubleshooting
Under certain conditions, performance of this unit may be adversely affected by factors other than
defects. If a problem occurs, please review the following list and take remedial action as needed. If you
cannot solve the problem after checking the entire list, please contact your local franchiser for assistance.