Auto Sequencer - Agilent Technologies G8610A Operation Manual

❑
Press TEST and let the system record the actual time spent in roughing. After the test
is complete, use the recorded rough timer value to set an appropriate rough time.
To access:
1. Select Test Configurations > Applications Setup.
2. Select Auto Sequencer and press Set-Up and Figure 5-11 appears.
The auto sequencer is used to automatically perform testing on a part, to maximize testing
throughput and to reduce the chances of accidentally accepting a bad part.
The auto sequencer is used in conjunction with Set Points 1 & 2 and Pressure Set Point
settings, which provide the criteria for pass or fail conditions.
Within the auto sequencer feature, there are two variables that must be set, Rough Time and
Test Time.
Rough Time
86
Agilent Technologies Helium Leak Detector
Figure 5-11 Auto Sequencer
This setting indicates to the system the maximum time for the leak
detector to be in Roughing mode. If the Rough Time is exceeded
the test aborts and the system goes into Hold. This is a failed condi-
tion. Ideally, the system goes into the Roughing phase and then
proceeds to TEST (setup below).
The Rough Time value is determined empirically and reflects
NOTE
the typical time required to rough the test object to the specified
test pressure. Failure to achieve the test pressure within the
pre-selected rough time indicates a gross leak in the test object
or test fixturing, or that the time allowed was insufficient.