Leica Comprehensive Operation Manual for CM3050 S and Related Cryostat Models

5.Operation

5.3.6Indication of refrigeration state, section thickness setting and counters

These parameters can be displayed via the ar- row keys.

When pressing , the parameters are dis- played in the sequence listed on this page; when pressing , they are displayed in re- verse order. The display can be scrolled contin- uously, i.e. after the last parameter the display will automatically start again with the first.

1. Refrigeration state

C

T

-

3

0

°

C

O

T

-

3

5

°

C

￿

￿

H

O

M

E

￿￿

Meaning of the refrigeration symbols (asterisks): --> see chapter 5.3.5 ‘Status indication’.

2. Section thickness

C	T	-	3	0	°	C	O	T	-	3	5	°	C
								μ	0	1	0	.	0

4. Total section thickness counter

	C	T	-	3	0	°	C		O	T	-	3	5	°	C
								∑	μ	0	0	0	0	.	0
Can also be set to ‘0’ at any time (via														key).

If the total section thickness indication is not set to ‘0’ manually, the instrument counts up to maximum 9999.5 μm at which point the counter will automati- cally switch back to ‘0’.

This indication shows the total thickness of all sections carried out since the counter was last set to ‘0’. (All sections, in sectioning and trim- ming mode, are counted).

5. Preset counter

C	T	-	3	0	°	C	O	T	-	3	5	°	C
									d	n	0	5	6

Setting preset counter to ‘0’:

The sectioning thickness is set with the or key (see chapter 5.4.7 ‘Setting the section thickness’).

3. Section counter

C	T	-	3	0	°	C	O	T	-	3	5	°	C
									∑	n	0	0	0

Once displayed (via arrow keys), the section counter can be set to ‘0’ at any time.

• To set to ‘0’ press .

If the section counter is not set to ‘0’ by the user at some point, sections are counted up to ‘999’ at which point the counter automatically switches back to ‘0’.

Press key.

can also be pressed while the continuous sectioning mode is in motion; in this case the preset counter is set to ‘0’ and sectioning stops upon reaching the lower limit position.

After it has been set to ‘0’, the preset counter is inactive.

Reloading the former reference value:

Press and simultaneously.

Reloading the former reference value is possible also while the continuous sectioning mode is in motion:

Upon pressing both arrow keys, the instrument continues sectioning without interruption, start- ing to count down from the old reference value.

Leica CM 3050 S – Cryostat 33