Leica DM4000B Manuel D’Utilisation

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6. Startup
6. Startup
6.1 Functional Principle
The microscope’s most important functions may be easily accessed using function keys.
• The microscope may be switched between various contrast processes by pressing a single button.
• The microscope recognizes the objective chosen and the respective contrast process. There-
fore, the values for intensity (INT), aperture diaphragm (AP) and field diaphragm (FD) are al-
ways set correctly.
• The values for INT, AP and FD can be changed individually. This overwrites the previous
setting. Actual settings are stored automatically.
• The specifications for INT, AP and FD always relate to the currently activated light axis (trans-
mitted light or incident light).
• In addition to the preset function keys for INT, AP and FD, there are also variable function keys.
Variable function keys:
• These function keys are assigned logical functions before delivery(see “Identification Sheet”)
• These functions can be reprogrammed according to your individual wishes.
  
Note: (Reset-Function)
The microscope can be reset to the default functions programmed at the factory:
• When the microscope is switched off, press all 3 variable function keys on the left stand
section.
• Switch on the stand.
• Hold the keys pressed down until initialization is complete.
• The standard information is shown in the display.
• Switch off the instrument and switch it on again. The settings are stored now.
6.2 Switching on the Microscope
• First, swivel the objective with the least magnification into position.