Van Guard 1200CM Series, Руководство по эксплуатации

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Using your 1200CM Series
Microscope
Focusing adjustment is achieved by turning the coarse/fine focus controls (see
figures 9 and 10). The large knob is used for coarse adjustment, the smaller
knob for fine adjustment. The coaxial arrangement allows for easy, precise
adjustment without stage drift.
Turning the coarse/fine focus control raises and lowers the stage vertically. One
complete turn of the fine focusing knob raises or lowers the stage 0.3mm; the
smallest graduation refers to 2 microns of vertical movement. One complete
turn of the coarse focusing knob raises or lowers the stage 3.6mm. To ensure
long life, turn the focusing knobs slowly and uniformly.
The focusing tension control knob is located just inside of the right-hand
focus control knob (see figure 9). For tighter tension, turn the control
knob in a clockwise motion. For looser tension, turn the control knob in a
counterclockwise motion.
Vertical Focusing: The condenser can be raised and lowered with the substage
adjustment knob to focus the light for optimal illumination.
Aperture Adjustment: The light path can be adjusted with the iris diaphragm
adjustment lever located underneath the condenser. Aperture adjustments are
made to induce contrast into a specimen, not to adjust light intensity.
The mechanical stage X-Y controls, located underneath the right-hand side
of the stage (see figure 9), provide easy and accurate positioning of the
sample. One complete turn of the longitudinal (Y) control (lower half of the
stage controls) will move the specimen 34mm left or right. One complete turn
of the transverse (X) control (upper half of the stage controls) will move the
specimen 20mm front or back.
The spring-loaded slide holder can be removed for users who prefer to not
use a mechanical stage. Simply loosen the knurled slide holder knobs which
lock the slide holder on the stage, and slip out the slide holder.
Variable Lighting Control/Power Switch
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Figure 9
Figure 10
Focusing and Mechanical Stage Mechanisms
VanGuard 1200CM Microscopes are equipped with a rheostat controlled variable lighting control, which allows
the user to set the lighting anywhere between off and full brightness. The variable lighting control is located on
the left side of the microscope in front of the power switch. To increase the brightness roll the wheel towards the
rear of the microscope.
The rocker switch located on the left hand side of the microscope (see page 6) turns the power on or off. To turn
the power on press the rocker on the end marked “|”. To turn the power off press the rocker on the end marked “O”.
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All Models
All Models