Activation Of The Peltier Element (Option); Manual Defrosting Of The Quick Freeze Shelf - Leica CM1860 Instructions For Use Manual

6. Operating the Instrument

6.2.4 Activation of the Peltier element (option)

Fig. 18
Fig. 18a

6.2.5 Manual defrosting of the quick freeze shelf

Fig. 19
32
The Peltier element provides additional cooling for the freezing stations. Upon
activation of the Peltier element, the compressor of the cooling system is
started after 40 seconds to reinforce the thermal conductivity effect.
Display "PE" (= Peltier element).
Activate it by pressing the
If the Peltier element has been activated
symbol lights up. After the activation, the display switches to the number "10"
(the Peltier element now cools down for 10 minutes). The remaining cooling
time is always shown in the display.
The Peltier element turns off automatically after 10 minutes.
When only 4 minutes are remaining, a dot appears after the number 4 ("4.").
From this time on, it is safe to shut off the Peltier element early.
To shut it off early, press the
After the shutoff, the display returns to "PE".
The quick freeze shelf may become hot during defrosting! There-
fore, do not touch it!
You can activate the manual defrost of the quick freeze shelf by pressing
the key (continuous tone sounds), followed immediately by the
(continuous tone stops). The display flashes during the defrosting (duration
12 min.).
To shut off the manual defrost early, press the
by the key. The quick freeze shelf can become hot during the defrosting
process. The defrost time is 12 minutes.
The quick freeze shelf and cryochamber cannot be defrosted at the
same time.
key.
(Fig. 18a), a blue LED in the Peltier
key again.
key, followed immediately
Instructions for Use V 1.6 RevI – 10/2016
key