[Esr-users] [New Logentry] Follow-up Re: HMS Q2

[Heidi Fansler]

Jonathan,

Hall A made NO changes this morning, and we found no leaks.


Heidi




On 1/2/2018 12:05 PM, Jonathan Creel wrote:
> Steve
> At 9:52am the ESR behavior abruptly changed. We are investigating on 
> our end and would appreciate if the Halls could log any possible 
> changes they might have made no matter how small they thought they were.
>
> Thanks
> J
>
>
> On 1/2/2018 10:12 AM, Steve Lassiter wrote:
>> With a locked out valve setting on its fill valve, the HMS Q2 liquid inventory is mainly dependent on the supply pressure and return. The graph shows that the HMS Q2 started to lose liquid inventory after the dewar level started to decrease.
>> The HMS Q2 magnet reacted to a change and was not the cause of the change.
>>
>> Steven
>>
>> ----- Original Message -----
>> From: "Dave Kashy"<kashy at jlab.org>
>> To: "Cryo"<esr-users at jlab.org>
>> Sent: Tuesday, January 2, 2018 9:35:02 AM
>> Subject: [Esr-users] [New Logentry] Follow-up Re: HMS Q2
>>
>> Follow-up Re: HMS Q2
>>
>>
>> Lognumber 3508362 . Submitted by kashy on Tue, 01/02/2018 - 09:30. Logbooks: 	HCLOG CLOG
>> References: 	3508324 - HMS Q2
>>
>>
>> ESR dewar is still loosing liquid level.
>> Looking around some more I still see the HMSQ2 not at steady state.
>>
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>
>
> -- 
> Jonathan Creel
> Cryogenics Engineering and Operations Department Head and Senior Electrical Engineer
> Thomas Jefferson National Accelerator Facility
> 12000 Jefferson Avenue, Newport News, Virginia, 23602
> Phone (757)269-5925
>
>
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