[Esr-users] Kashy - Vacation

[Dave Kashy]

Thanks for the update about Hall B plans Denny!

Would somebody for Halls A and C send out the plans and if they had any  issues yesterday?

How about cryo? Which turbine went down? What tripped the turbine?
Any negative impact?

Folks we need to communicate 

Dave

Sent from my iPhone

> On Oct 23, 2017, at 10:44 AM, Denny Insley <dinsley at jlab.org> wrote:
> 
> Good Morning all, 
> 
>    Last night we had an event that caused us to lose liquid level in the Hall B Torus, Solenoid and Buffer Dewar.  At the moment the culprit appears to be a pressure transducer on the ESR return or a yet to be determined blockage of some sort. Either way it presented as a high return pressure that limited differential pressure to the point of us having no flow. Much thanks to David Schleeper for the help last night and this morning. At this point we have recovered and both magnets are back on cold return with further investigation of the high return pressure in progress. The Buffer Dewar is on warm return until a little later in the week. The cold return line from the Dewar has warmed and must be carefully cooled through back flowing. We have decide that the best method of doing this requires us to wait until the high return pressure issue has been addressed. 
> 
>    That being said, our plans for the next couple of weeks include returning the Buffer Dewar to cold return and some Cryo target testing. Once the Buffer Dewar is back on line the target testing should have little or no effect on cryogenic loads. I will update further as the week progresses and before any operations to insure this is as non-invasive as possible.
> 
> Thanks
> Denny
> 
>  
> 
> ----- Original Message -----
> From: "Dave Kashy" <kashy at jlab.org>
> To: "esr-users" <esr-users at jlab.org>
> Cc: "rossi patrizia" <rossi at jlab.org>, "Rolf Ent" <ent at jlab.org>
> Sent: Thursday, October 19, 2017 9:41:16 AM
> Subject: [Esr-users] Kashy - Vacation
> 
> Hi All,
> I will be on vacation Friday and all next week. I should be reachable by phone and mail at least in the evenings or early morning.
> 
> Please send out your plans/requests regarding cryogenic hardware for the next two weeks.
> I think I will make this a regular weekly request.
> 
> One person from each Hall, one from the Target group and one from the Cryo group should reply.
> Cryo should tell us general things like status of the CHL cold boxes, Status of the ESR, Status of the Purifiers and recovery system, and status/availability of the ESTL. 
> Others should tell about the magnet status and changes needed, target loads, special tests such as magnet training, vacuum issues, leaks etc. 
> 
> Thanks
> Dave
> 
> 
> _______________________________________________
> Esr-users mailing list
> Esr-users at jlab.org
> https://mailman.jlab.org/mailman/listinfo/esr-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/esr-users/attachments/20171023/84ee0153/attachment.html>