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Entry  Tue Jan 8 19:13:39 2019, Jon, Update, Upgrade, Ready for pumpdown tomorrow 
    Reply  Wed Jan 9 11:07:09 2019, gautam, Update, VAC, New Vac channel logging Screenshot_from_2019-01-09_11-08-28.png
Message ID: 14390     Entry time: Tue Jan 8 19:13:39 2019     Reply to this: 14391
Author: Jon 
Type: Update 
Category: Upgrade 
Subject: Ready for pumpdown tomorrow 

Everything is set for a second pumpdown tomorrow. We'll plan to start pumping after the 1pm meeting. Since the main volume is already at 12 torr, the roughing phase won't take nearly as long this time.

I've added new channels for the TP1 analog readings (current and speed) and for the two N2 tank pressure readings. Chub finished installing the new regulator and has run the transducer signal cable to the vacuum rack. In the morning he will terminate the cable and make the final connection to the Acromag.

Gautam and I updated the framebuilder config file, adding the newly-added channels to the list of those to be logged. We also set up a git repo containing all of the Python interlock/interfacing code: https://git.ligo.org/40m/vacpython. The idea is to use the issue tracker to systematically document any changes to the interlock code.

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