66
7. Start-up
Note:
Changes to the light intensity as well as aperture
and fi eld diaphragm settings are stored for the in-
dividual objectives and contrast methods.
Fig. 84
Fixed function buttons (left side of stand)
1
Toggle transmitted light/incident light
2
Aperture diaphragm
3
light intensity
4
fi eld diaphragm
4
1
3
2
7.4 The Function Buttons on the Stand
Leica DMI3000 B:
• Focus wheels: the left-hand focus wheels can
be used for both coarse and fi ne focusing; the
right-hand focus wheel for fi ne focusing only
(a version of the Leica DMI3000 B with mir-
rored focus controls is also available)
• Light intensity: the transmitted light intensity
can be adjusted continuously from 0 to 12 V
using the potentiometer at the lower left of the
front of the microscope stand.
For the Leica DMI3000 B please continue at 7.6.
Illumination.
Leica DMI4000 B and Leica DMI6000 B:
A number of function buttons are located on both
sides of the stand. These can be broken down
into fi xed and variable buttons. The variable func-
tion buttons have different functions depending
on the features of the individual microscope.
Fixed function Buttons on the Left Side
The
TL/IL
button (84.1) toggles between the inci-
dent-light and transmitted light axis. The contrast
method last used with a given axis is restored
when switching.
The
INT
buttons (84.3) adjust the light intensity.
The adjustment can be made in coarse or fi ne
steps. Pressing both
INT
buttons at the same time
toggles between coarse and fi ne adjustment.
The
AP buttons
(84.2) for the aperture diaphragm
and
FD
(84.4) for the fi eld diaphragm open and
close their respective diaphragms.
The motorized DMI stands can be controlled
using the function buttons on the stand, the re-
mote control SmartMove or the STP6000.