Micromeritics ASAP 2020 Confirm Operator's Manual page 94

ASAP 2020 Confirm
Collect ROA data
Interval
Dose amount
Max. readings
Pressures selected
Pressure Table
4-18
Allows you to collect Rate of Adsorption (ROA) data. When
this option is selected, its related fields become enabled. An
ROA column is also added to the Pressure table, allowing
you to select pressures at which to collect ROA data. Refer to
the ROA operator's manual for additional information.
This group box is displayed only if the ROA option is
installed.
Enter a value which represents the length of time from one
reading to the next.
Enter the amount of gas to be applied.
Enter a value which represents the maximum number of
readings to record.
Displays the number of pressure points selected for ROA
data.
A pressure table is a list of pressure points (with calculation
assignments) at which data are to be collected. The pressures
may span the entire range from the lowest relative value of
0.00000001 to the maximum value of 0.995 P/Po. (The
maximum recommended value for krypton is 0.5 P/Po.) In
addition, one saturation point may be entered with relative
pressure of 1.0.
The minimum absolute pressure for desorption is 0.050
mmHg. For example, if Po = 760 mmHg, a relative pressure
less than 0.050 / 760.0 = 0.0000658 will result in an error.
The analysis will terminate.
Several analysis conditions files containing complete
pressure tables are included with the ASAP 2020 Confirm
software.
The pressure table for automatically collected data includes
the pressure points for data collection and identifies
calculations through which the data are processed.
New
202-42811-01 - Mar 2011