14
REFLECTED FLUORESCENCE SYSTEM FOR CKX41
1
2
3
Fig. 2
5
Centering the Mercury Burner
(Figs. 2 to 6)
}Before proceeding to center the burner, wait for the arc
image to stabilize. To protect against glare during arc image
centering, it should be viewed across the excitation light
protective shield.
1. Remove the cap (or objective) from a revolving nosepiece
position and engage this position in the light path.
2. Push in the fluorescent mirror switching knob 1 to engage
the B-excitation mirror in the center position in the light path.
3. Turn the field iris diaphragm lever 2 clockwise to open the
iris diaphragm.
4. Place a piece of white paper, such as copy paper, on the
top of the stage, set the filter slider 3 to the center position
and project the arc image.
}The arc image can be confirmed more easily by using the
U-CST centering target screen.
#If the arc image is too bright, insert the ND filter 4 into
the filter pocket 5 and engage it in the light path. When
the 32ND25 is used, the transmittance is 25%.
#If the arc image focusing position cannot be identified
easily, close the field iris diaphragm.
Fig. 3
4
5
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