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Message ID: 808     Entry time: Tuesday, December 02, 2014, 13:33
Author: David Wang 
Category: South Hot-Cell 
Type: Development 
Module: TM2 
Target/Number:  
Subject: Leak check on TM2 tube heater +(D) at SHC 

Chad and I leak checked TM2 tube heater+(D) circuit at SHC with water bypass loop and new seals installed on the water block. The LD base LR 0.0xE-9 atm.cc/sec,base pressure0.0xE-4 torr. Chad sprayed helium on the leak check area in SHC for 5 seconds. No any response has been found on LD during 1minutes waiting time. The test was repeated again and the result is same. NO LEAK at this stage!  After the TM2 is moved to CS , The D line will be pressured with 80 psi helium for helium pressure leak test before any hot water is circuited through it.  

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