88
Thermo Fisher Scientific
Operation Manual HM550
When the suction power and suction window are set in a correct way,
the section to be disposed of gets via the suction slot in the knife carri-
er into the filter unit, consisting of a coarse filter for collecting section
waste and a micro filter for filtering the air.
Section waste is collected in the coarse filter. is coarse filter must be
replaced depending on the volume of waste. e coarse filter is actively
cooled.
e micro filter must also be replaced regularly, however, at least every 6
months.
• Press the bow (fig. 93.2) of the coarse filter downwards either manu-
ally or via the foot.
• e coarse filter tilts forwards.
• Remove the coarse filter by means of the attached clamp for filter
replacement.
e coarse filter must be replaced depending on the volume of the exis-
ting section waste. If the integrated counter detects that the sum of all
sections exceeds 50 000 µm after the last resetting, the message “Change
coarse filt.” appears on the display.
Inserting and replacing
the filter unit
ꢀemoving coarse filter
ꢀeplacing the coarse filter
[1]
Figure 92.
Operating knob for adjusting suction power.
window. Outside the cutting window, the selected vacuum is turned off by
means of a valve.
Setting the suction window is carried out in the same way as the
cutting window.
Operating instructions
Option V – Vacutome
