40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log  Not logged in ELOG logo
 List  |  Find  |  Login  |  Help 
Entry  Wed Dec 22 17:24:50 2010, steve, Configuration, VAC, slow pumpdown at 12 hours slowpd12h.jpg
    Reply  Wed Dec 22 21:38:47 2010, kiwamu, Configuration, VAC, Re:slow pumpdown at 12 hours 
    Reply  Thu Dec 23 13:30:09 2010, steve, Configuration, VAC, slow pumpdown complete slow2dpd.jpg
Message ID: 4090     Entry time: Wed Dec 22 21:38:47 2010     In reply to: 4089
Author: kiwamu 
Type: Configuration 
Category: VAC 
Subject: Re:slow pumpdown at 12 hours 

I stopped the pumping at 9:30 pm. Now we are at 29 torr.

Quote: from  #4089

How to stop pumping:

1,  close RV1 manual valve with torque wheel

2, close V3

3, turn off roughing pumps RP1 & RP3

4, disconnect metal hose connection to butterfly valve

 

ELOG V3.1.3-