I want to run a burst test and hold for a length of time.

Set the force limit on the test configuration panel to the burst test limit. On the same panel select the set hold time box under hold time options. Set the amount ox time you wish to hold at force. Run the test. The tester will apply force until the force limit then stop. If you have the hold force option selected the tester will cycle on and off to maintain the force limit. If the specimen bursts before the hold time expires the test will terminate.