[dsg-svt] DSG work request

[Peter Bonneau]

FYI:  The SVT flow meter was selected by Hall B engineering (see email 
below).

DSG placed the order for the meters as requested by Hall B engineering.

Hall B engineering should select a meter that meets SVT requirements.




-------- Forwarded Message --------
Subject: 	Re: Flow Meter for SVT
Date: 	Thu, 31 Jul 2014 14:44:09 -0400
From: 	Saptarshi Mandal <mandal at jlab.org>
To: 	Peter Bonneau <bonneau at jlab.org>



Hi Peter,

This one has bigger connections, so might be lesser pressure drop. Will
this work for you ? FLR6302D should work for us.

http://www.omega.com/pptst/FLR-D.html

Saptarshi

On 7/31/2014 1:13 PM, Peter Bonneau wrote:
> Hi Saptarshi,
>
>
> I know we've talked about this before, but it needs to be ordered now. 

>
> For an interface, we need a 0-5 V output.
>
>
> Thanks,
>
> Peter



On 7/13/2018 12:39 PM, Yuri Gotra wrote:
>
> 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).
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/dsg-hallb_svt/attachments/20180716/fa9fffb0/attachment-0002.html>