Leica HistoCore Arcadia H, Instructions For Use Manual

Page: 24 / 50

24 Version 1.8, Revision K
Operation
5
• The dispenser handle can be operated by simply pushing the mold (or a finger) against the pressure
clip. Slightly pushing the handle backwards will open the dispenser valve (
→
Fig. 10- 4 ) . Once
released, the handle springs back in the original position and the valve shuts.
Note
The flow cannot be stopped completely with the metering screw ( → Fig. 10- 11 ) . It must not be turned
while cold!
Warning
Do not use the dispenser when the instrument is powered off. Otherwise, mechanical damage will be
caused to the dispenser.
Fig. 11
3
4
5 15
4
3
5
Working surface
( → Fig. 11- 3 )
• The working surface includes the embedding area ( → Fig. 11- 3 ) , forceps holder ( → Fig. 11- 5 ) and the
cold spot ( → Fig. 11- 4 ) .
• The temperature of the embedding area (
→
Fig. 11- 3 ) and forceps holder (
→
Fig. 11- 5 ) can be
adjusted between 50 °C (122 °F) and 75 °C (167 °F) in 1 °C (or 1 °F) increments.
• The working area has grooves and several drain holes ( → Fig. 11- 15 ) , through which excess paraffin
rapidly drains.
Cold spot ( → Fig. 11- 4 )
• The cold spot is an integral part of the work area.
• To orientate the specimen, the mold is filled about one third with liquid paraffin. The liquid paraffin
begins to solidify rapidly on the cold spot.
• While the paraffin is semi-liquid, the specimen can be oriented as required. Finally, the mold can
rapidly be filled up with paraffin.