7.Instrument Controls

Control Panel Field 2 – Electric Coarse Feed, Sectioning and Trimming Thickness Display

Illuminates in yellow when the specimen is in retraction.

Toggle TRIM and

SECT (LED active).

Press approx. 3 sec.; "on" or "off" appears (for the retraction). Toggle using the "+" or "-" key

Retraction:

off = 0

on = 20 μm In manual mode.

For motorized sectioning, the re- traction value is fixed and cannot be changed (see page 39 - lower infobox).

In the "off" setting, there is no retraction in manual, automatic or rocking mode.

1

2

Fig. 33

 

For trimming values above a sec-

 

tion thickness of 200μm, the dis-

LED for trim

play flashes to expressly notify

and section

the user of thick sections!

thickness

 

display

 

Rocking mode – only in manual mode;

in rear area, i.e. approx. 12 - 3 o’clock position of the handwheel (rock handwheel back and forth a short distance)

Move specimen head backwards quickly to home position (latched)

Move specimen head backwards slowly – pressing briefly retracts the specimen 20μm

Specimen head forwards – pressing briefly advances the specimen 20μm

Specimen head fast feed

Setting section/trim thickness

Use the - keys on control panel 2.

Range of section thickness: 1 - 100 μm

Values: 1.0μm -

5.0μm

in 0.5μm steps

5.0μm -

20.0

μm

in 1.0 μm steps

20.0μm -

60.0

μm

in 5.0 μm steps

60.0μm -100.0

μm

in 10.0 μm steps

Range of trim thickness: 1 - 600 μm (Recommended for research applications)

Values: 1.0 μm - 10.0 μm

in 1.0 μm steps

10.0μm - 20.0 μm

in 2.0 μm steps

20.0μm - 50.0 μm

in 5.0 μm steps

50.0

μm - 100.0 μm

in 10.0 μm steps

100.0

μm - 600.0 μm

in 50.0 μm steps

Trimming section thickness setting range: (Recommended for clinical applications) Values: 10μm, 20μm, 30μm, 40μm,

32

Operating Manual V1.1 – 05/2007

Page 32
Image 32
Leica CM1950 manual Retraction, 60.0μm, Values 1.0 μm 10.0 μm, 10.0μm 20.0 μm, 20.0μm 50.0 μm, 50.0 Μm 100.0 μm