Leica Biosystems CM1100 - Manual (Page 14)

14 Instructions for use V1.3 RevB – 09/2012
The control unit has a 3-digit display for actual and set
temperature and defrost time, with additional LEDs for
instrument status, and three function keys.
In normal operation, the display indicates the actual
temperature of the cryochamber.
7.4.1 LEDs
LED 1 Illuminates in the cooling mode.
LED 2 Illuminates for 10 minutes before defrosting ac
tually begins.
LED 3 Illuminates while defrosting takes place
7.4.2 Function keys
To program parameters
To increase the indicated value
To decrease the indicated value
7. First use of the instrument
7.3 Switching on
After transporting, wait at least 4 hours be-
fore turning the instrument on.
This waiting period is necessary to allow the
compressor oil, which may have been dis-
placed during transport, to return to its origi-
nal position.
Failure to comply with this can cause severe
damage to the instrument.
If transported correctly in a horizontal posi-
tion, the instrument can be switched on im-
mediately!
• Before connecting the instrument to the mains
power, please check if the local mains voltage com-
plies with the power rating indicated on the name-
plate.
7.4 Functions of the control unit
Fig. 14.2
• Connect the mains plug to the mains power outlet
at the wall.
The mains switch is located on the right side of the
cryocabinet. In the OFF position it is on 'O‘; in the ON
position it is on 'I‘.
The mains switch also has the function of an automatic
mains fuse.
• Turn the instrument on with the mains switch.
The display of the temperature control unit will read
the actual temperature of the cryochamber.
After turning on, it will take approximately 10
seconds until the compressor starts operat-
ing.
Fig. 14.1
P