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Entry  Sat Mar 9 11:38:10 2013, Evan, DailyProgress, Vacuum, Cavities inserted; chamber pumping down 
    Reply  Tue Mar 12 18:20:21 2013, tara, DailyProgress, Vacuum, Cavities inserted; chamber pumping down IMG_0815.JPG
       Reply  Wed Mar 13 10:50:31 2013, Koji, DailyProgress, Vacuum, Cavities inserted; chamber pumping down 
          Reply  Wed Mar 13 23:52:12 2013, tara, DailyProgress, Vacuum, Cavities inserted; chamber pumping down 
             Reply  Thu Mar 14 17:27:42 2013, Koji, DailyProgress, Vacuum, Cavities inserted; chamber pumping down 
Message ID: 1117     Entry time: Wed Mar 13 23:52:12 2013     In reply to: 1116     Reply to this: 1118
Author: tara 
Type: DailyProgress 
Category: Vacuum 
Subject: Cavities inserted; chamber pumping down 

It's still improving, now the current is 0.3 mA (0.38mA yesterday). I'll wait until it stops improving and try to tighten the screws a bit. \

About the plastic pieces, they are peek. I think it is vacuum compatible, cf E960050-v11.

May be it is the temp sensor that I have to re-solder on the copper pieces. I did not bake them after soldering.

Quote:

The gap at the frange is OK as long as the gasket is evenly squeezed.

1. It the pressure still improving? => Your cavity is still out gassing.

2. Fasten the screws little more (not too much) for these two franges.
    => If there is any improvement there is some leakage.
    => If not, this is just a outgas from your cavity.

Do you think your black plastic pieces are vacuum compatible? Are they made of Delrin?

 

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