Leica Biosystems CM1950 - Manual (Page 15)

15 Leica CM1950 – Cryostat
2. Safety and Design
2.9 Removing the microtome
• The microtome is encapsulated and therefore does not require removal by the user.
2.10 Maintenance
Replacing the fuses
• Turn the instrument off and disconnect the power plug before replacing the fuses!
• Use only the fuse types specified in
Chap. 3, "Technical Data" ! The use of fuses other than speci-
fied by the manufacturer may cause severe damage to the instrument!
Replacement of the lamp/UVC lamp
• Turn the instrument off and disconnect the power plug before replacing the lamps.
2.8 Handling specimens – Defrosting
The quick freeze shelf can become very hot during the defrosting process. Therefore, do
not touch it!
Never leave samples in the cryochamber! – The instrument is not suitable for storing
frozen specimens, as the refrigeration dehydrates the specimens!
• When working with contaminated or infected material, the general safety guidelines for
laboratories must be applied!
• Before defrosting the cryochamber remove all samples!
• Before defrosting the specimen head, remove all samples!
If both disinfection indicator lights are blinking alternately, the UV
tube must be replaced!
It is possible to break the UVC lamp during replacement. If this happens, the lamp change
must be completed by Technical Service. If any metallic mercury is released, handle it
carefully and dispose of it properly.