Control Elements On The Leica Vt1200 Control Panel; Moving The Specimen Receptacle Vertically; Fine-Adjusting The Blade-To-Specimen Proximity And Feeding To The Section Thickness - Leica VT1200 Instructions For Use Manual

5.2

Control elements on the Leica VT1200 control panel

Warning
To practice the key functions, always make sure there are no blades installed! Do not install the blades
until you are familiar with all of the key functions.
Switch on the
instrument.
O= on I = off

5.2.1 Moving the specimen receptacle vertically

5.2.2 Fine-adjusting the blade-to-specimen proximity and feeding to the section thickness

Leica VT1200 / Leica VT1200 S
When the instrument is switched on, to make it easier to insert a specimen,
the specimen receptacle automatically moves into the lowest position (the
LED in the DOWN key lights up) and the blade holder moves into the rearmost
position (the LED in Blade back
The parameters last used before switching off the instrument: The blade feed
rate (SPEED), selected amplitude (AMPL) and section thickness saved by the
MEMO key are called up again.
The LED illumination is switched on automatically. You can switch it off using
the ON/OFF switch (lamp symbol).
When the DOWN key is pressed, the specimen receptacle automatically
moves quickly into the lowest position. (The LED in the
when the lower end position is reached.) The Σμm display is set to 0. If the
DOWN key is pressed a second time while the specimen receptacle is moving
downwards, the specimen receptacle comes to a stop. The current position
appears on the Σμm display (lowest position = 0). The Σμm display does not
change while the specimen receptacle is in motion.
When the UP key is pressed and held, the specimen receptacle moves quickly
upwards into the desired position. After the
current position of the specimen receptacle appears on the Σμm display. If
the specimen receptacle reaches the upper end position, the LED in the
key lights up (uppermost position = 20,000 μm). The Σμm display does not
change while the specimen receptacle is in motion.
You can reset the display for the current position of the specimen holder to
zero at any point using the
added in the Σμm display.
The rotary knob 2 for moving the specimen receptacle vertically can be used
both for fine-adjusting the blade-to-specimen proximity and for adjusting the
desired section thicknesses. The step size: 1, 10 or 100 μm can be selected
by pressing the STEP SIZE
Turning the setting dial clockwise carries out the desired feed; turning the
setting dial counterclockwise lowers the specimen (minus sign). The value
appears in the lower display when
process has been completed, the μm display is set to zero.
Working with the Instrument
from the specimen lights up).
UP key has been released, the
CLEAR/Σμm key. The section thicknesses are then
key.
μm is selected. After each sectioning
5
DOWN key lights up
UP
25