Columns and Fittings

Column oven

Column oven

Figure 1-1

 

Det Ftg

Inlet Ftg

 

Nut Plate

The Column Oven

The oven door latch, located beneath the lower right corner of the door, is pressed upward to open the door.

Motor•drivenflaps at the rear of the oven admit room air for cool down or near•ambientoperation, so the door is kept closed except for access to columns (the oven cools most efficiently with its door closed).

The oven can maintain temperature down to about 7 C above ambient without auxiliary cooling. If lower temperatures are required, a cryogenic valve (for either liquid CO or liquid N ) is needed. Liquid CO permits reliable temperature control down to -50 C; liquid N provides reliable control down to -80 C. The maximum oven temperature is 450 C.

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