Perkin Elmer 650 Leak Test Fail
Posted: Fri Jun 29, 2012 10:27 pm
Just started to use PE 650. Have issues with the leak test. Any suggestion/advice is appreciate.
The leak test first failed (10psi difference between initial and final pressure), so replaced orings and filter in the fixed and mobile assembly. However, there is still 1 psi difference between initial and final pressure. Shut down and Restart the instrument, the pressure difference is reduced to 0.3-0.5 psi. It would probably pass the leak test, but still wonder any other parts need to be fixed/replaced? why is this happening. Million thanks.
The leak test first failed (10psi difference between initial and final pressure), so replaced orings and filter in the fixed and mobile assembly. However, there is still 1 psi difference between initial and final pressure. Shut down and Restart the instrument, the pressure difference is reduced to 0.3-0.5 psi. It would probably pass the leak test, but still wonder any other parts need to be fixed/replaced? why is this happening. Million thanks.