Micromeritics SmartPrep 065, Руководство оператора

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Inserting and Removing Heating Station Adapters
Heating station adapters enable you to use a variety of sample tubes with the
SmartPrep. There are three models of heating station adapters. Use the appropri-
ate model as shown in Table 2-2 and follow the instructions in this chapter for re-
moving and inserting adapters.
The adapters used with Gemini sample tubes may remain in the stations until
you wish to use a different type of sample tube.
You must remove adapters used with ASAP 2000/2010 and TriStar 3000 sample
tubes when you remove a sample tube. You may store an adapter in the heating
station from which you removed it or in a cooling rack.
The adapters used with ASAP 2000/2010 and TriStar 3000 sample tubes consti-
tute an isothermal shield, which enables you to insert and remove them safely us-
ing the adapter handle. The isothermal shield helps maintain uniform temperature
throughout the sample bed. Sample temperature, however, depends on several fac-
tors:
•
The thermal conductivity of the sample material
•
The quantity of sample material
•
The rate of gas flow through the sample bed
All materials do not heat identically. The actual sample temperature can be ex-
pected to be 10
o
C of the temperature you enter in the degas conditions
table (refer to Degas Conditions in Chapter 3).
If an exact sample temperature is critical to your application, you should measure
the sample bed with a temperature probe and adjust the setpoint temperature you
enter accordingly.
SmartPrep Inserting and Removing Heating Station Adapters
Sep 98 2-15