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dataPAC User’s Guide
Chapter 4 - Off Route Analysis with the dataPAC
3.
Move the highlight to Trigger Control and choose one of the internal choices, either
↑
Slope - Int or
↓
Slope - Int. Set up the other parameters as needed.
4.
Press <STORE> to begin collecting data. The following screen appears.
5.
Press the arrow keys to set the trigger level. You want to make the trigger level the level
of vibration that you expect to occur when the transient data occurs. You want to
observe the full scale value of the transient data for a while before selecting a trigger
level.
The best way to accomplish this is to watch the black bar expand around zero. After it
expands to the highest point of vibration, such as when the stamping press stamps, it
leaves “high water marks” at the highest point of vibration. You want to place the
trigger point slightly below the highest “high water mark.” This diagram shows an
example of a correctly set trigger level.
If the black bars go past the full scale range, adjust the range using the Hardware Range
parameter in the Measurement Parameters screen.
6.
Choose OK. The dataPAC begins collecting the data after the vibration levels reach the
trigger level you set.
Performing a Bump Test
The dataPAC 1500 V5 can be used to perform a bump test. A bump test detects the natural
resonant frequencies of a machine by striking the machine, and measuring the vibration data
taken at the moment the machine is struck. The ability to use the internal vibration trigger as
the start point for collecting data allows you to do a bump test.
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Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com