Nikon ECLIPSE Ti2-U Instruction Manual page 20

Handling of This Product
6. Nosepiece protection
Always attach the provided caps to the objective mounting hole with no objective mounted and the DIC
slider slot with no DIC slider inserted.
Otherwise, extraneous light and dust may enter this product.
Without caps, any liquid accidentally spilled from the specimen may intrude inside the system, which
may cause a failure.
7. Objectives
When observing suspended cells in a container, it is necessary to set the objective closer to the con-
tainer than usual in order to achieve proper focus. If the objective is switched in this state, the tip of the
objective might collide with the container.
Likewise, before placing a large container on the stage, make sure that the tip of the objective does not
protrude from the stage surface.
8. Oil-immersion microscopy
Use only a minimum quantity of immersion oil. If too much oil is applied, the excess might flow onto the
stage and the periphery of the stage, thereby affecting the microscopy work.
After opening an immersion oil container, use oil as early as possible, because oil deteriorates and its
refractive index and viscosity change.
When using petroleum benzine or absolute alcohol to wipe off immersion oil or to clean the lenses,
follow the instructions provided by the manufacturer of the petroleum benzine or alcohol to be used.
Keep these flammable liquids away from fire or sparks.
See "8. Notes on handling flammable solvents" under
9. Fluorescent filter cube
• The excitation filter inside the fluorescence filter cube is subject to very strong light beams, and
consequently degrades over time. Replace the filter when its characteristics have changed.
• The characteristics of the filter might change under high humidity. Avoid using and storing fluores-
cence filter cubes in conditions subject to high temperature, high humidity, or extreme temperature
changes, to avoid affecting the characteristics and quality of the filters. When the fluorescence filter
cubes are not to be used, Nikon recommends storing them in a desiccator or sealed container with a
desiccant.
WARNING.
xviii