Leica Biosystems CM1850 UV - Manual (Page 24)

24 Instructions for use V 1.5 – 10/2012
6.2.6 Manual defrosting of the cryochamber
The manual defrosting of the cryochamber is activated by subsequently
pressing the button (audible signal turns on) and the or button on
the panel for the cryochamber temperature (audible signal turns off). During
the defrost cycle, the indication is flashing.
If you want to turn off the manual defrosting of the quick freeze shelf prior to
the automatic deactivation, press again and or on the panel for
the cryochamber temperature.
6.3 Display lock
The programmed values cannot be modified after having pushed the key
button.
Push the key button once more for 5 seconds to unlock the display.
When the display is locked, the LEDs between the hour and minute indica-
tion on the time panel are turned off.
6. Control panel operation
Fig. 15
Fig. 14