Zeiss Axioskop 2 FS plus Manual page 87

Axioskop 2 FS plus
Axioskop 2 FS
MOT
Defined leaving and relocation of the current focus position (Home function)
The Home function permits the defined leaving and activation of the work range. This enables a work
position left via the Home function to be reproducibly relocated with an accuracy in the µm range.
a) Defined leaving of the focus position
• Press the Home key to move the objective slider out of the current work position in the defined
direction. The LED in the Home key lights up.
b) Defined relocation of the focus position
• Press the Home key again to return the objective slider in the last defined work position. The LED in
the Home key lights up.
If the end switches for the work range are activated, the Home function is not available. To be
able to use the Home function, the end switches must be deactivated (see page 3-18).
If the objective slider is in the Home position, the other keys of the keypad are not active.
Set step width and perform steps
The Step function allows the focusing drive to be reproducibly shifted by a certain amount (step width)
as often as required. The step width can be selected as required in the range from 0.1 to 499 µm.
The steps can be performed slowly or at maximum speed.
If an external trigger signal is connected to the control unit, steps can be triggered up to 7 times every 2
seconds. The step width is then limited to max. 10 µm.
a) Set step width
• Press the Set Step key.
The display shows the current step width under S. old and the changed value under S. new. The sign
(+/-) indicates the direction in which the objective slider is moved in the step mode.
• Use the Pos. 1 and Pos. 2 keys to move the cursor over the digits of the display and the Pos. 3 and
Pos. 4 keys to change the required value.
If the zero is passed in the relevant digit field when pressing the Pos. 3 and Pos. 4 keys, the
sign is reversed and the step is then performed in the opposite direction.
• Confirm the setting by pressing the ↵ key.
B 40-076 e 02/01
OPERATION
Operation and function controls Carl Zeiss
3-17