FPG8601™/VLPC™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company
Page 88
6.7.4
<SEQUENCE> TAB
The Test Sequence
<Sequence>
tab is used to specify details of how the test points of a test
will execute. This includes defining dwell and data reading parameters as well as the number
of times to run the test (number of cycles). Note that the order of the fields of the sequence
tab follows the order of execution of the different steps of each pressure point when a test is
actually run.
Figure 30.
Test Definition Editor,
<Sequence>
Tab
The purpose of the
<Sequence>
tab’s fields and settings as well as instructions on how to
use them are provided in Table 31.
Table 31.
Test Sequence Editor,
<Sequence>
Tab Fields
FEATURE
DESCRIPTION
Zero System
(required drop
down list selection)
Use the drop down list to select the pressure points at which the FPG should be zeroed.
The tare occurs before the test pressure is set. After taring, the target pressure is set and
the Test Sequence proceeds with the stability test. There are three (3) choices:
•
Selected points:
Uses the tare points manually inserted into the sequence using the
<Points>
table
[Insert]
option (see Section 6.7.2).
•
First point:
Automatically adds a tare at the first test point. The
<Points>
table
[Insert
Tare Point]
option is not active when this choice is selected.
•
All points:
Automatically inserts a tare at every test point in the test point table. When
new points are added, they automatically receive a tare when this choice is selected.
The
<Points>
table
[Insert Tare Point]
option is not active when this choice is selected.
Dwell
(required entry
field and drop
down list selection)
Dwell is a pause that occurs following the stability test, prior to taking averaged test data at
each pressure point. When
<Dwell>
is set to
<Timed>
, FPG Tools
dwells at each test
point for the specified
<Dwell Time>
, 0 – 999s. When
<Dwell>
is set to
<Manual>
, FPG
Tools
dwells at each test point until
<OK>
is clicked on the
<Continue Test>
pop-up. This
feature can be used to synchronize readings or to pause operation during pressure setting,
for example to make adjustments to the DUT.
Averaging
Time(s)
(required entry
field and drop
down list selection)
Determines a fixed time over which reference and DUT readings are averaged when taking
data at each pressure point. FPG Tools
averages for the fixed
<Averaging Time>
entered, 0-999s. As many readings as possible are taken during the averaging period.
Number of Test
Cycles
(required entry field)
FPG Tools
can run up to 10 test cycles in one test. A test cycle includes setting and taking
data at each of the pressure points in the
<Points>
table. When more than one test cycle
is specified. Data from multiple cycles is included in a single Data File (see Section 9.2).
