[Dsg-rtpc] [EXTERNAL] Re: RTPC Cable Length

[JIWAN POUDEL]

Hello Carlos,

During the test of new gas panel, Bill Crahen sent this about the length of the tubing:

"I just talked to Cyril, and he shows a straight line distance of about 11', so figure perhaps 15' actual length, and shorten your supply line to match.”

So Bill and Bob made the tubing of gas panel at EEL accordingly. I have also cc’ed Bill Crahen, so he might answer it correctly if anything changed!!

Thank you,
Jiwan

> On Nov 4, 2019, at 8:20 PM, Carlos Ayerbe Gayoso <gayoso at jlab.org> wrote:
> 
> allow me to rephrase Brian,
> 
> the requested length of the cables SHOULD be (approximately) the same as the length of the gas tubing between the detector and the panel. Since that distance is not the shortest one due to all the obstacles and provisions between those elements (panel and detector), both (cable and tubing) will share the same path and will be quite longer than the evident path.
> 
> I think that length is already (more or less) well determined, but unknown for many, including me.
> 
> Cheers
> 
> -Carlos
> From: Dsg-rtpc <dsg-rtpc-bounces at jlab.org> on behalf of Brian Eng <beng at jlab.org>
> Sent: Monday, November 4, 2019 7:44 PM
> To: Sebastian Kuhn <kuhn at jlab.org>
> Cc: dsg-rtpc at jlab.org <dsg-rtpc at jlab.org>; Bob Miller <rmiller at jlab.org>; Nathan Baltzell <baltzell at jlab.org>; Eric Christy <christy at jlab.org>
> Subject: Re: [Dsg-rtpc] RTPC Cable Length
>  
> Bob has already provided the length between the electronics and the gas panel, so that part is established.
> 
> As for the connectors I only ordered enough for 1 level of disconnect.
> 
> What we don't have yet is the length from the panel to the detector.
> 
> ________________________________________
> From: Sebastian Kuhn <kuhn at jlab.org>
> Sent: Monday, November 4, 2019 7:20 PM
> To: Brian Eng
> Cc: dsg-rtpc at jlab.org; Nathan Baltzell; Narbe Kalantarians; Bob Miller; Eric Christy; Hattawy, Mohammad
> Subject: Re: RTPC Cable Length
> 
> Dear Brian,
> 
> we briefly discussed this issue at today’s BONuS12 engineering meeting. Basically, there are several possible intermediate steps to consider: The cables that are fixed to the probes should have connectors for easy installation together with the RTPC. The second step would be from those connectors to the gas panel. Finally, my understanding is that the crate containing the electronics for the gas system controllers will be some distance away (but on the same space frame level), on the North Side. (Nathan, please correct me if I’m wrong). I don’t know what that distance is, but maybe some of the other people cc’d on this email can answer.
> 
> Greetings - Sebastian
> 
> On Nov 4, 2019, at 9:55 AM, Brian Eng <beng at jlab.org<mailto:beng at jlab.org>> wrote:
> 
> Hi Sebastian,
> 
> Do you have this information? If you have the length between the gas panel and the detector I can just add that to the length Bob is providing.
> 
> Who is fabricating the RTD cable? I'd assume we (DSG) are, but best to make sure before we order anything.
> 
> Thanks
> --
> Brian Eng
> Detector Support Group
> 757-269-6018
> 
> Begin forwarded message:
> 
> From: Bob Miller <rmiller at jlab.org<mailto:rmiller at jlab.org>>
> Subject: Re: RTPC Cable Length
> Date: November 4, 2019 at 7:14:43 AM EST
> To: Brian Eng <beng at jlab.org<mailto:beng at jlab.org>>
> 
> Hi Brian,
> 
> I can get you a cable length for the gas panel tomorrow.
> 
> Please contact Sebastian Kuhn about detector cables.  He was in the Hall last week and came up with a plan, I don't know if he considered RTDs.
> 
> Thanks,
> 
> Bob
> 
> On 11/1/2019 6:02 PM, Brian Eng wrote:
> Hi Bob,
> 
> Is there a distance for the cables calculated yet?
> 
> We need one for the cables between the cRIO (on SFL1N that we moved to) and the gas panel and also one for the cRIO to the detector itself (for RTDs).
> 
> Thanks
> 
> --
> Bob Miller
> Hall B Lead Engineer
> Jefferson Lab
> 757 822-9586
> 
> 
> 
> 
> 
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