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23
Use
Stereo-fluorescence module
Focusing and observing
Observe the safety regulations on page 4 and note the
recommendations on page 5 for using the mercury-
vapour burner. Position the UV-light excluder correctly
(see page 22):
▶ Holdthearm
▶ Release the central
clamping screw
▶ Position the UV-light
excluder in front of the
objective
▶ Tighten the central
clamping screw.
Focusing
Carry out the dioptric correction and the focusing in accordance
with the user manual for the stereo microscope, either:
in transmitted light:
▶ pushing in the filter holder with diaphragm (3) to block the
fluores cence illumina tion (see page 22). Pull the filter holder
with diaphragm out again before obser ving the fluorescence.
with the fluorescence illumination:
▶ pulling out the filter holder with diaphragm (3)
(see page 22)
▶ Insert the excitation filter (1) (page 22)
▶ Switch on the supply unit (page 14
)
. For the 100W lamp,
wait two or three minutes for the whistle signal.
1
2
3
3
Observation
▶ First use the lowest magnification to observe the object
• Youwillgainabetteroverallviewandcanmoreeasilyfind
interesting features
▶ Refocus slightly if necessary
▶ Observe details at a higher magnification.