Leica Biosystems CM1860/CM1860 UV - Manual (Page 24)

24 Instructions for Use V1.4 – 10/2012
5.1 Electrical connection
5. Instrument Setup
During the start-up of the refrigeration system, the minimum nominal voltage must not
drop below the values specified in Chapter 3 , "Technical Data".
The compressor draws a starting current between 45 and 50 A.
Therefore, the electric circuit at the installation site must be inspected by an electrical
engineer to ensure that it meets the requirements for a smooth operation of the instrument.
A stable power supply in accordance with the instrument's specifications is essential to
its proper functioning.
Failure to comply with the above can damage the instrument.
• Have separate fuse protection provided for the electric circuit.
• Do not connect any other appliances to this electric circuit.
• The instrument is de-energized when the power cable is separated from the power supply
(power supply circuit breaker).
5.2 Prior to operation
• Check that the power supply voltage and power frequency in your laboratory match the
values on the nameplate of the instrument ( Fig. 1 ).
Use only the power cable provided by Leica. Failure to observe this causes an immi-
nently hazardous situation that may result in death or serious injury to the operator or
other personnel.
• Check that the drain plug is tight (in the drain hole below the left storage shelf), and press it
tightly into the drain if necessary.
The drain plug must be tight in the instrument while work is being carried out in the
cryostat. Remove the plug only during the defrost procedure.
• Place the storage shelves in the cryochamber.
• Place the section waste tray and brush shelf in the cryochamber.
• Place the knife holder base on the microtome base plate.
• Set and clamp the blade/knife and knife holders in place (
see Chap. 7.3 ).
• If using a knife, remove it from the box to precool in the cryochamber. Open the knife box
with the knife and place it in the cryochamber for precooling.
• Place all tools needed for specimen preparation in the cryochamber.
• Close the sliding window.
• Plug the power plug into the power socket.