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Graticules
•
The graticules for measuring and counting are in mounts
which can be fitted directly into the eyepieces.
•
A highly-precise stage micrometer with a 50mm scale and
0.1mm and 0.01mm divisions enables the graticule to be
calibrated in accordance with the magnification selected.
•
It is best to measure with the microscope carrier AX in
vertical position. The measurements are parallax-free and
therefore more precise.
•
Focusing and framing graticules indicate the format limits
for all films.
Fitting the graticule
The dioptric adjustment, and setting for parfocality when a
graticule is in the eyepiece, are described in the user manuals
for photomicrographic and measuring systems.
20
Unscrew the sleeve from
beneath the eyepiece.
Push the graticule in mount
over the sleeve, ensuring that
it seats properly.
Screw the sleeve into position
again.
Insert the eyepiece fully into
the eyepiece tube.
Looking into the eyepiece, turn
the eyepiece in the eyepiece
tube to align the graticule, and
tighten the clamping screw.
Stands
Transmitted-light stand, bright field, 20W
Follow the safety instructions given
on page 4.
Fit the side-faced column to the transmitted-light base as
described on page 16.
Fit the microscope carrier and the stereomicroscope as
described on page 16.
Fitting the bulb
Never touch the bulb when it is hot.
You may sustain burns.
•
Do not touch the 6V/20W halogen bulb directly with your
fingers, because fingermarks can cause it to crack when
heated. Remove fingermarks immediately with a cloth dipped
in pure alcohol.
Filters
•
The transmitted-light stand contains a KG1 filter.
•
You can insert other 50mm diameter filters if you need them:
Starting up
The ex-factory setting of the voltage selector is 230 (for voltages
between 200–240V) and the fuse holder contains two 160mAT fuses.
Insert the slider together with
the bulb socket.
Hold the new bulb with a cloth
and insert it fully into the mount.
Push the slider carefully but
completely back along the rail to
the stop.
Pull out the slider.
Insert the 50mm diameter filter.
Push the slider carefully but
completely back along the rail to
the stop.
For 100–120V power supply:
Set the voltage selector to 115.
Fit the enclosed two 315mAT fuses
in the fuse holder instead of the
two 160mAT fuses (see section
"Changing fuses", page 21).
Connect the power cable to the
socket of the base and to the
power source.
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