[dsg-svt] DSG work request

[Yuri Gotra]

Thank you Peter,

A comment on your statement on the flow meters. The models and the 
number of the flow meters purchased (no spares) were defined by the HBI 
group. I reported several times that this model is not designed to work 
in magnetic field. The flow meters failed the very first time the 
solenoid was turned ON. Please select a model which would be compatible 
with requirements of the detector and let me and Bob Miller know.


On 7/13/18 11:56 AM, Peter Bonneau wrote:
>
> DSG comments regarding these work requests are in *blue.*
>
> On 7/13/2018 9:55 AM, Yuri Gotra wrote:
>> For testing the cooling system in preparation of the SVT for beam 
>> operations it is critical to have measurements of the coolant flow. 
>> Both flow meters observed issues with correct reading of the flow. 
>> The flow meters have been disconnected from the cooling lines 
>> (control lines are still connected). Please test the flow meters asap.
> DSG will schedule in this request in with all the other work in Halls 
> B, C, and D we are doing in preparation for the upcoming run.
> Hall B SVT does not have  cooling system repair components (external 
> to the chillers) which was first mentioned in our email of 1/31/2017 
> (listed below).

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