Parts And Features - Fluke 2031A User Manual

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Parts and Features

The Quick Stick includes all necessary items needed for forming a mantle in a
TPW cell.
• The double wall insulated stainless steel cup holds enough dry ice for
freezing a good mantle. A plastic cap and plastic insulating outer cover
enclose the cup.
• The Quick Stick is of adequate length for generally available cells.
• The large diameter evaporator allows for faster freezing.
• The centering bushing centers the evaporator inside the reentrant well.
• A copper end plug provides heat transfer to the bottom of the Quick Stick.
• The removable heat pipe, from the cup, provides for ease of cleaning.
• The heat sink helps to prevent ice bridging.
• The stand, Hart model 2031-STND is used to support the Quick Stick and
TPW cell during the mantle creation process.
If all items are not present, contact a Hart Scientific Authorized Service Center
(see Section 1.3).
The Quick Stick (Figure 1 on page 8) consists of an insulated cup at the top for
containing the coolant and the heat pipe itself. The heat pipe has a condenser at
the top (the larger diameter portion) and an evaporator that is the bottom por-
tion that inserts into the cell. A thin wall stainless steel (5/16 inch) diameter
tube forms the evaporator, which is capped at the bottom with a copper plug to
facilitate heat transfer to the bottom of the cell. A wick located inside the tub-
ing facilitates the flow of refrigerant. The refrigerant inside the heat pipe is a
non-CFC. A centering bushing can be used to center the evaporator portion
within the reentrant well of the TPW cell. A stem insulator below the cup insu-
lates the portion of the evaporator that is not inside the cell. The stem insulator
may be adjusted to fit a particular cell by cutting it to a new length. For some
cells, you may need to remove it entirely.
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