DH Instruments COMPASS FOR MOLBOX, User Manual

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COMPASS

for molbox™ User’s Manual
© 1998-2003 DH Instruments, Inc .
Page 182
18.4 DATA FILE STRUCTURE
The Data File structure includes headings and labels that make it easy to read and follow.
The information in the Data File is divided into sections. Each section, with the exception of the first
section, is preceded with a blank line followed by a single line describing the section. The Data File
sections are described in Table 62.
The data in a Data File may be delimited by commas, tabs or semi-colons (see Section 11.8). The default
choice is semicolon data delimiters. The
COMPASS functions that use *.dat files adapt automatically to
the delimiting value used by the Data File. When using a third party application, be sure to choose the
appropriate delimiter prior to importing the data.
The data file delimiter must not be a character that is used in any entry field or delimiting will
be incorrect.
Table 62. Data File/Grid Run Screen Main Sections
SECTION DESCRIPTION
Run Information (No
Section Title)
Gives test data, start time and operator name.
DUT Includes the information on the DUT that was tested from the DUT definition
(see Section 8).
Reference Includes information on the flow reference included in the Hardware Definition at
the time the test was run (see Sections 10.2, 10.3.2).
Output Device Includes information on the DMM or frequency counter used to measure the DUT
output during test execution (see Sections 10.2, 10.3.4). These fields are set to
N/A if the DUT did not use this type of data acquisition.
Set Point DMM Includes information from the DMM used to measure the DUT set point (see
Sections 10.2, 10.3.4). If the DUT set point was not measured during the test,
these fields are set to N/A.
Pressure Includes information on the pressure measuring device used to log gas pressure
at the DUT during test execution (see Sections 10.2, 10.3.4). If pressure was not
measured during the test, these fields are set to N/A.
Temperature
Includes information on the temperature measuring device used to log gas
temperature at the DUT during test execution. (see Sections 10.2, 10.3.4).
If temperature was not measured during the test, these fields are set to N/A.
Flow Controller Includes information on the flow controller used to control flow during the test
(see Section 9.5.6, 10.3.6). If the flow control was by the DUT or was manual,
these fields are set to N/A.
Test Includes information from the Test Definition that defines the test procedure used
to run the test (see Section 9).
Pre Test Includes the results of the leak test, if included, and specifies whether or not a
system purge was used at the beginning of the test (see Sections 7.2, 7.2.1).
Test Data Includes all point by point data logged during the test (see Section 7.2.2).
Statistics Includes values calculated from the test data: measurement uncertainty, linearity,
hysteresis, repeatability, and the best fit straight line transfer functions. When
multiple test cycles are used the final statistics values determine statistics related
to all data acquired during the test and not a single cycle.
Notes User notes entered at the end of the test (see Section 7.2.3).