Degassing The Sample - Micromeritics ASAP 2020 Confirm Operator's Manual

Preparing Samples

Degassing the Sample

Most solid materials absorb moisture and other contaminants when exposed to the
atmosphere. The sample must be clean when an analysis is performed. The sample is heated
and placed under vacuum to remove moisture and other contaminants. This process is
referred to as degassing the sample. Degassing the sample is easy and virtually automatic if
your ASAP 2020 analyzer is equipped with the SmartVac degassing system. The procedure is
as follows:
1. While holding the degas port plug, remove the connector nut and plug from the degas port
by turning the connector nut counterclockwise.
2. Place the degas port connector nut, ferrule, and O-ring onto the sample tube set as shown
in the following figure.
202-42811-01 - Mar 2011
Manifold
Connector
Sample Tube O-ring
Ferrule
Connector Nut
Heating Mantle
Connector Nut
3-way Sample Connector;
accepts 1/2-, 3/8-and 1/4-in.
Sample Tubes
Seal Frit Opener (pre-installed in
connector)
Seal Frit (1/2-in. sample
tubes only)
Sample Tube
Power and
Thermocouple
Connectors
ASAP 2020 Confirm
3-21