START-UP
Axiovert 200 Illuminator N HBO 103 Carl Zeiss
B 40-080 e 03/01 2-25
2.13.2 Coarse alignment of illuminator N
HBO 103
The following settings for adjustment of the
N HBO 103 illuminator are performed in two steps:
the coarse adjustment and the subsequent fine
adjustment using the adjustment aid.
During coarse adjustment, UV
protection goggles must be worn to
protect the eyes from UV radiation.
• Remove illuminator from the microscope stand
by loosening the clamping screw (2-35/2).
• Switch on the entirely connected illuminator
N HBO 103 (also see page 2-26) via the
ebq 100 dc power supply (2-24/2) and allow it
to heat to operating temperature. Make sure not to look into the light exit opening of the
illuminator.
• Direct light beam against a projection area (wall) approx. 3 m away.
• Use knurled knob (2-32/6) to focus on the brighter focal spot via collector adjustment.
• Use adjusting screw (2-32/3) and SW 3 ball-headed screwdriver to locate and focus on the slightly
darker, reflected focal spot.
• Use adjusting screws (2-32/4 and 5) and SW 3 ball-headed screwdriver to set the height and side of
the brighter focal spot in accordance with the focal spot image (2-34).
Fig. 2-33 Focal spots of N HBO 103 before coarse
adjustment
Fig. 2-34 Focal spots of N HBO 103 after
coarse adjustment
Fig. 2-32 Coarse alignment of mercury vapor
short-arc lamp