I am not sure on this one as far as the application . The bead output can be a few things, gas purity, age of bead or the type of bead. My first experiences with beads were with 5890's, so I never used the auto adjust, preferred to gradually increase the voltage until it came into operation. Hopefully some others have had expereience and will reply.
I marked this as assumed answered, please feel free to comeback and post if you need more help.