21
Cooling Connections
The Dewar Siphon (1) is the thick white foam
tubing and is attached to the liquid nitrogen Dew-
ar. The thin black capillary tube inside the white
foam tube must be inserted into the liquid nitro-
gen cooling connectors on the stage.
The white tubing slides on to the outside of the
connector. Twist the siphon whilst sliding it on
and push until it comes to a stop. It does not need
to go all the way to the base of the connector.
The thicker silicon tube from the LNP95 cooling
pump ends in a white PTFE connector (2), this is
pushed over the end of the other stainless steel
connector as seen in the image.
The smaller tube from the outlet on the LNP95
should be placed in position on the top of the lid
using the Tube Clip Holder (3). This tube blows
warm recycled nitrogen gas across the lid window
to prevent condensation on the viewing window
surface.
3
1
2
