(2) Set wavelength below 300nm, and set 2nm slit.
Aim the viewfinder of light source at D2 lamp side to make D2 lamp aim at
light-entrance slit. Cofirm relative position of WI lamp facula and light-entrance
slot is OK.
If relative position of D2 lamp facula and light-entrance slit has deviation,
adjust Screw B of viewfinder.
If D2 lamp facula has horizontal deviation, adjust screw B of viewfinder.
After adjustment, tighten Screw B.
◇Note：D2 lamp is UV light source lamp. D2 lamp facula can be observed at
light-entrance slit of lamp source compartment, which is polychromatic light.
But after polychromatic light of D2 lamp has been changed into homogeneous
light by monochromator, we cannot see facula by eye. So we cannot observe
the shape of D2 lamp facula inside sample compartment by eye and we cannot
adjust D2 lamp position.
◇Note: As for turning on and turning off the lamp, wavelength settings,
transmittance/ absorbency mode setting, refer to relevant section.
◇Note： When adjusting position of WI lamp and D2 lamp, if instrument is OK
by Step (2), there is no need to perform Step (3) and Step (4).
◇Note： If position of D2 lamp and WI lamp has serious deviation, light source
viewfinder may need to be adjusted. However, the method is very complex,
please contact to Service Department for help.
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