BRIGHT 5040 - Feedscrews and Thickness Settings; Section Thickness Control Mechanism

Revised May 2012
7
1.2.2 THICKNESS CONTROL
The knob FIG 1(5), on the front of the microtome, is used to set section thickness in µm. Simply turn the knob
to the desired setting
FEEDSCREWS
A range of alternative feedscrews is available to cover section thickness’ from 0.2µm to 300µm. If one of these
has been fitted in the factory, an appropriate scale of microns will also be fitted where available. However, if the
user substitutes an alternative himself, the following table should be used to obtain the current section
thickness.
Optional Feedscrews 5040
Optional
Feedscrews 5040
50256 manual
50256-1 MAR
50255 manual
50255-1 MAR
50257 manual
50257-1 MAR
50258 manual
50258-1 MAR
50259 manual
50259-1 MAR
50260 manual
50260-1 MAR
“Thin Section” Standard in cryostat Standard in wax
microtome
0.2 to 12µm 0.5 to 30µm 1 to 60 µm 2 to 120µm 3 to 180µm 5 to 300µm
0.2µm incrs. 0.5µm incrs. 1 µm incrs. 2µm incrs. 3µm incrs 5µm incrs.
With scale With scale With scale Without scale Without scale Without scale
Scale Markings:
2 5 10 20 30 50
4 10 20 40 60 100
6 15 30 60 90 150
8 20 40 80 120 200
10 25 50 100 150 250
12 30 60 120 180 300
Note: MAR = Motorised Advance/Rewind
FIG 2 5040 QUICK RELEASE FEATHER BLADE HOLDER
1. Blade clamp lever
2. Blade angle locking lever
3. Blade angle indicator
4. Blade guard
5. Blade loading plate
6. Fixed blade guard
7. Blade guard knob
8. Blade clamping plate
9. Knife block clamp locking lever
1
2
3
4 5
6
6
7
9
8