Leica CM3050 S Handling microtome knives/blades, Knife guard/handwheel lock, Motorized sectioning

2.Safety

2.3.4 Handling microtome knives/blades

•Danger!

-->Microtome knives and disposable blades have extremely sharp cutting edges and can cause serious injuries. Therefore:

•Handle knives / blades with utmost care.

•Never leave any knives / blades in unpro- tected places!

•Never place a knife, no matter where, with the cutting edge facing upwards.

•Never try to catch a falling knife.

•Always insert the specimen before inserting the knife.

2.3.5 Knife guard/handwheel lock

•Always cover the cutting edge with the knife guard and lock the handwheel:

•Prior to doing any work on knife and / or specimen.

•Prior to exchanging specimens.

•During work breaks.

2.3.6 Motorized sectioning

•Do not interrupt sectioning / trimming by set- ting the sliding potentiometer to zero speed! -->This does not really switch the sectioning function off - it only operates at ‘0’ speed.

If the sliding potentiometer is accidental- ly moved, the instrument will resume sec- tioning immediately (risk of injury)!

•During motorized sectioning, always center the handwheel grip!

2.3.7 Defrosting/Handling frozen tissue

•Never leave specimens unattended in the cryochamber over an extended period of time!

-->In case of power failure or instrument failure, or during the automatic defrost cy- cle, tissue material can be destroyed.

•During the defrost cycle the cryochamber is partially warmed. - Therefore:

•Remove sensitive specimens from the chamber prior to defrosting.

•If automatic defrosting is programmed to take place during the night, remember to remove all specimens from the cryo- chamber prior to leaving work.

2.3.8Frozen parts of the instrument and frozen accessories

•Prolonged contact of bare skin to frozen surfaces of the instrument or to frozen accessories (specimen discs, knife holder, shelves etc.) can cause frostbite.

• Wear protective gloves.

Leica CM3050 S – Cryostat 13