DH Instruments COMPASS FOR MOLBOX, User Manual

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COMPASS

for molbox™ User’s Manual
© 1998-2003 DH Instruments, Inc .
Page 130
Table 47. [Options], [Run Test] Tab, [Manual DUT P and T Entry Method] Fields
FEATURE DESCRIPTION
Enter at
(drop down list box)
Determines when manual gas pressure and/or temperature entries will be
made in the test sequence. There are three possible choices:
•
First Point: Pressure and/or temperature entry is prompted only at the
first flow point of the test. No more entries will be requested and the
values entered at the first point will be used for all the points.
•
Every Point: Pressure and/or temperature entry is prompted at each flow
point in the test. The values entered at each point are used for the point.
•
Use Default: No pressure and/or temperature entry will prompted. The
default pressure and/or temperature value(s) specified in the lower part
of this panel will be used.
Default absolute pressure
(drop down list box/numeric
entry)
Specifies the absolute pressure value and unit of measure to be used when
the
<Use Default> choice is specified in the <Enter At> selection above.
The pressure entered is also the default pressure used when creating new
DUT Definitions that include a density correction (see Section 8.5.3).
Enter the pressure value and select the pressure unit of measure. Note that
the pressure value is an
absolute pressure, not a gauge pressure. Gas
density is a function of absolute pressure. To convert gauge pressure to
absolute pressure, add the typical value of atmospheric pressure at your
location or standard atmospheric pressure of 101.325 kPa (14.696 psi) to the
gauge pressure value.
Default temperature
(drop down list box/numeric
entry)
Specifies the temperature value and unit of measure to be used when the
<Use Default> choice is selected in the <Enter At> selection above. The
temperature entered is also the default temperature used when creating new
DUT Definitions that include a density correction (see Section 8.5.3).
Default humidity (%RH)
(numeric entry)
Enter the default relative humidity for humidity based calculations. Enter the
value in terms of a percentage concentration of relative humidity.
Manually enter pressure and
temperature in default units.
Select this option to enter pressure and temperature values in the default
units instead of the units specified in the selected DUT.
COMPASS will
convert the entered value into the units setup by the DUT. If the DUT does
not require a pressure or temperature value, the default manual entry unit is
always the default units specified in the default pressure and temperature.
11.7 [END TEST] TAB
The [Tools] , [Options], [End Test] tab is used to set user preferences affecting operations that occur to
conclude a test sequence (see Section 7.2.3).
The purpose of the [End Test] tab fields and settings as well as instructions on how to use them are
provided in Table 48. When selections are complete, click <OK> to save.
Selecting a fixed repeat point delay, deactivating the test notes and enabling the auto report
generation can allow an automated test to run and generate a complete report without any
user intervention.