Micromeritics 061-00023-00, Operator'S Manual

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Sample Preparation VacPrep 061
2-8 Feb 2013
Inserting and Removing Heating Station Adapters
Heating station adapters are included in the VacPrep accessories kit for use with sample tubes.
There are three models of heating station adapters. Use the appropriate model as shown in
Table 1-3 and follow the instructions in this chapter for removing 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 the TriStar and ASAP Series sample tubes when you
remove the sample tube. You may store an adapter in the heating station from which it was
removed or in a cooling rack.
Adapters constitute an isothermal shield and help to maintain uniform temperature throughout
the sample bed. Sample temperature, however, depends on several factors:
• 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 expected to be
within ±10 ºC of the current temperature (PV) displayed on the temperature controller. 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 accordingly.