49
AQUALAB VSA
Figure 41 Edit stages DDI method
10. Select New and press the Enter button.
A screen with several parameters will appear.
Figure 42 Edit stages DDI method
11. Select the isotherm method as either DDI or DVS.
DDI creates a dynamic isotherm and DVS makes a static or equilibrium isotherm. The
other choices adjust according to your selected method.
For the DDI method
1. To choose the starting a
w
, highlight “Start,” press the Enter button, and then cycle to the
desired value using the up and down arrows. You can choose any value between 0.03 and
0.95 a
w
including current. Choosing current causes the stage to begin at the initial a
w
of
the sample. Press the Save button when finished.
2. To choose the final a
w
, highlight “Final,” press the Enter button, and then cycle to the
desired value using the up and down arrows. You can chooses any value between
0.03 and 0.95 a
w
, including current. Selecting a final a
w
that is lower than the starting
a
w
results in desorption, while selecting a final a
w
higher than the starting a
w
results in
adsorption. Press the Save button when finished.
3. To choose the temperature of the stage, highlight “Temperature,” press the Enter button,
and then cycle to the desired temperature using the up and down arrow keys (hold down
arrows for accelerated scrolling). You can choose any temperature between 15 and 60 °C
and run each stage at a unique temperature.
To Next Page
Loading...
Need help?
General
