40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  ATF eLog  Not logged in ELOG logo
Message ID: 2426     Entry time: Thu Sep 26 18:05:31 2019
Author: Duo 
Type: Lab Infrastructure 
Category:  
Subject: Cryo cooler and pump test run 

[Chris, Duo]
We tested the cryo cooler and the turbo pump this afternoon. We ran the cryo cooler for two hours. The equalization pressure is 275psi(the pressure before we turn it on) and operating pressure (pressure after running for two hours) is 295psi(attachment 1). The operating pressure is lower than expected; the manual indicates the pressure is expected to be 300-320psi.

We cycled the turbo pump. It appears to be functioning properly.

Attachment 1: IMG_0990.jpg  783 kB  Uploaded Thu Sep 26 19:19:19 2019  | Hide | Hide all
IMG_0990.jpg
ELOG V3.1.3-