Leica DMI4000B Start-up Function Buttons on the Stand, Fixed function buttons on the left side

7. Start-up

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 fine focusing; the right-hand focus wheel for fine 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 fixed and variable buttons. The vari- able function buttons have different functions depending on the features of the individual mi- croscope.

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 fine steps. Pressing both INT buttons at the same time toggles between coarse and fine adjust- ment. ÒIntensity fineÓ will appear in the display when fine adjustment is selected.

The AP buttons (84.2) for the aperture dia- phragm and FD (84.4) for the field diaphragm open and close their respective diaphragms.

Note:

Changes to the light intensity as well as aperture and field diaphragm settings are stored for the individual objectives and contrast methods.

Fig. 84 Fixed function buttons (left side of stand)

1Toggle transmitted light/incident light

2Aperture diaphragm

3light intensity

4field diaphragm

3

2 4

1

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