PDA Setup Failure, anyone else have this problem?
<p><span>Ever since getting our UPLC w/ a PDA detector last November, we have had an intermittent problem. Every 1 to 4 weeks, the error occurs in the middle of a sample set. The Run window says: "Communication Error" and the log lists the problem as "PDA setup failure", which results in a run failure. We have worked with Waters to solve the problem. We swapped out our PDA with another one, and tried a Waters computer instead of our computer. The problem always comes back. I can recover by re-setting the PDA and re-starting the sample set.</span></p>