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8
Fixed Point Cell Installation Instructions
CAUTION: An Inconel basket is used as the example for the installation
instructions in this section. The furnace is shipped with an Alumina basket
which does not have a locking mechanism for the lid. DO NOT install the
basket into the furnace with the lid installed, otherwise the cell and the
basket may be broken. The Alumina basket needs to be installed before the
basket lid is placed on the basket.
8.1
Installing the Metal Freeze Point Cell
CAUTION: Never touch the cell with bare hands. When handling the cell,
wear gloves.
CAUTION: The support canister must also be free of oils and other con-
taminating materials.
A metal freeze point cell must always be handled with extreme care due to its
high value and fragility. It must also be kept free of any foreign material such
as finger oils. Alkaline from these oils cause devitrification or physical break-
down of the quartz shell. Handle the cell with cotton gloves. Discard the
gloves before they become appreciably soiled. Any foreign material should
be carefully removed with high purity alcohol. Refer to Figure 9 on page 48.
Sealed cells for freezing points are delicate devices and the quartz shell is prone
to be broken. THE CELL MUST BE HANDLED WITH EXTREME CARE.
Maintain the cell in vertical orientation for safety. Although putting the cell in
horizontal orientation for a short period of time may not cause any damage,
transporting the cell by any means while in this position is dangerous. Trans-
porting a cell by common carrier is also dangerous. The cell should be hand
carried from one place to another. Keep the surface of the cell clean.
8.2
Purpose
To maintain uniform cell installation throughout the laboratory.
Equipment needed:
• Cell basket and Lid
• Reagent grade alcohol
• Fixed Point Cell
• Sheet of standard printer paper
• Insulation
8 Fixed Point Cell Installation Instructions
Installing the Metal Freeze Point Cell
47
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