Leica Biosystems CM1950 - Manual (Page 73)

73 Leica CM1950 – Cryostat
12.2 Changing fuses
• In case of power supply faults, please contact an authorized Leica ser-
vice technician immediately.
12. Maintenance and Cleaning
2
1
Fig. 91
• Switch off the instrument at the circuit breaker.
• Disconnect the power plug.
• Slightly lift the sliding window (1) using the grip
(2) and pull it out to the front.
Turn the instrument off and disconnect the power plug before replacing the UVC lamp.
If the lamp is broken, it must be replaced by the technical service, as the replacement
involves a high risk of injury. Beware of the metallic mercury in the UVC lamp; handle it
carefully and dispose of it properly.
When both LEDs (short and long-term disinfection) are blinking alternately in control
panel field 1, the lamp must be replaced.
A UVC lamp has an estimated service life of approx. 9,000 hours.
Each on/off switching cycle reduces the lamp life by approx. one hour plus
burning time ( 30 min utes or 180 min utes respectively).
Do not carry out any repairs on your own as this will invalidate the
warranty.
Repairs may only be carried out by qualified service engineers
authorized by Leica.
12.3 Replacing the UVC lamp