100
Thermo Fisher Scientific
Operation Manual HM550
Moving the magnetic blade
carrier
Fine adjustment of the vacuum
anti-roll hood
Function of the Vacutome
Note:
Usable cuts are only achieved at clearance angles between 24 – 30°!
• To move the magnetic blade carrier, loosen the lever on the right
side of the base plate.
• To fix the blade carrier in its new position, tighten the lever again.
• e vacuum anti-roll hood (fig. 1034) can be removed and put on
by using the turning lever (fig. 103.5).
• e knurled screw (fig. 103.6) allows the adjustment of the edge of
the vacuum anti-roll hood (fig. 103.4) in relation to the blade edge.
• e fine adjustment of the anti-roll device is carried out via the
knurled screw (fig. 103.6).
• A closed vacuum anti-roll hood (fig. 104.4) and a suitable suction
vacuum generate stretching or suction effects.
• For this, the closed vacuum anti-roll hood (fig. 103.4) slightly tilts
the underneath flap (fig. 104.8) via the stud screw (fig. 103.11),
thus opening a suction slot (fig. 104.9).
• Lift the vacuum anti-roll hood (fig. 104.4), the flap (fig. 104.8)
beneath falls back in place and the slot gets closed.
To accelerate freezing-on of a specimen on a chuck, choose the function
fast freezing. If this function is activated in due time (approx. 2 – 3
min.) before freezing-on, the fast freezing plate can achieve a tempera-
ture of -60°C.
Note:
is fast freezing device can only be activated at a chamber temperature of
less than -10°C.
Note:
e upper side of the freezing station must not be covered by frost or ice. To
avoid this, use acetone, ethanol or the like.
• Press the menu button (fig. 108.9).
• Via the arrow buttons (fig. 107.5 and 107.6) select “Peltier Station”.
• Confirm it via the enter button (fig. 108.10).
Option P – Active
deep freezing station
with peltier element
Operating instructions
Option P – active deep freezing device with Peltier element
