[Hallb-engineering] [New Logentry] Torus Vacuum

Nicholas Sandoval sandoval at jlab.org
Thu Sep 14 21:50:33 EDT 2017

Hi Brian,

The secondary turbo system was made 'permanent' after the leak was found.  Cables will need to be routed and landed to put the turbo speed and local gauge in the system.

TC810 is now ~6.89e-3

Best Regards,

----- Original Message -----
From: "Brian Eng" <beng at jlab.org>
To: kashy at jlab.org
Cc: ent at jlab.org, gyoung at jlab.org, "Pablo Campero Rojas" <campero at jlab.org>, "Nicholas Sandoval" <sandoval at jlab.org>, rfair at jlab.org, hallb-engineering at jlab.org, rossi at jlab.org, "dsg-hallb magnets" <dsg-hallb_magnets at jlab.org>
Sent: Thursday, September 14, 2017 9:36:02 PM
Subject: Re: [New Logentry] Torus Vacuum

Hi Dave, 

I can't seem to get the OPI website to load, but even if I could since I'm not really familiar with the vacuum system: is what you're looking for an indicator on the EPICS screen or something else? 

Is this something that needs to addressed now or can it be done tomorrow morning? 

On Sep 14, 2017 19:05, kashy at jlab.org wrote: 

Torus Vacuum 

Lognumber 3484476 . Submitted by kashy on Thu, 09/14/2017 - 19:00. Logbooks: 	HBSOLENOID HBTORUS CLOG 
References: 	3484405 - Follow-up Re: Follow-up Re: Hall B Cryogenic Problem - PLC/Comms/Blowing Reliefs 

The Torus Vacuum is getting worse quite quickly. TC8103 is 2.7E-2 Torr 
Upper turbo and the roots are still running and the average coil temperature is 38K 

Status of lower turbo is not displayed. We need to get the status on line!

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