Leica Leica VT1200 Toggling from Auto, Toggling from MAN to An audible warning signal sounds

5. Working with the Instrument

Key/setting dial semiautomatic sectioning mode automatic sectioning mode

In semiautomatic sectioning mode, before each cut, a manual feed to the desired section thickness must be carried out using the setting dial for section thickness.

There is no automatic specimen retraction in this mode; however, retraction can be performed man- ually.

In automatic mode, the selected section thickness feed (AUTO FEED) is carried out along the 1st selected cutting window edge automatically before each cut. To prevent the specimen surface and the blade from coming into contact while the blade is being retracted, the specimen is lowered by the desired retraction value along the 2nd cutting window edge after each complete cut.

Toggling from AUTO	The following key functions are dis-
to MAN	abled in semiautomatic mode:
	• Setting cutting window edges
	• Selecting the continuous stroke
	(CONT)
	• Selecting the section thickness
	for the automatic feed (AUTO
	FEED)

	• PAUSE
Toggling from MAN to	An audible warning signal sounds	The following functions keys be-
AUTO	when these keys are pressed.	come enabled again in automatic
		mode:
		• Cutting window edges that have
		already been set
		• Section thickness (AUTO FEED)
		and continuous stroke (CONT)

Leica VT1200 and VT1200S – Microtome 23