[dsg-hallb_svt] Debugging SVT DAQ

[Yuri Gotra]

Thank you Brian. Bob and I will discuss the issue with condensation.
________________________________
From: Brian Eng <beng at jlab.org>
Sent: Wednesday, April 28, 2021 12:14:05 AM
To: Yuri Gotra <gotra at jlab.org>
Cc: dsg-hallb_svt at jlab.org <dsg-hallb_svt at jlab.org>
Subject: Re: [dsg-hallb_svt] Debugging SVT DAQ

I rebooted the softIOC for the cRIO since that was showing up as disconnected.

I connected 3 humidity temperature sensor boards: external 1 & 2 and #7

The original external #1 HTSB board was reading bad humidity values so I replaced it with another one, that one is coiled up under the mounting fixture in order to read the ambient temp/humidity.

Since external #2 had a label that said shell I slid it under the plastic bag into the L1C area on beam left side.
I installed #7 on the beam right side also under the plastic bag.

In both cases I didn't remove any tape, foam, etc.

Both of those sensors were reading extremely high ~70 % RH and when I went to adjust the positioning on them they went over 100% and when I removed them they actually came out with some water on them. They both are now hanging from the barrel outside of the bag to try and dry them out.

Gently pressing along the bottom of the bag it feels like there is a substantial amount of water being held by the bag.

Since the chiller was already off when I came in I've left it that way.

________________________________
From: Yuri Gotra <gotra at jlab.org>
Sent: Tuesday, April 27, 2021 6:08 PM
To: Brian Eng <beng at jlab.org>
Cc: dsg-hallb_svt at jlab.org <dsg-hallb_svt at jlab.org>; Bob Miller <rmiller at jlab.org>
Subject: Re: [dsg-hallb_svt] Debugging SVT DAQ


I cc Bob on the question about MFC tubing.

The ambient sensors were in the storage bin, I put them in the integration cart.


On 4/27/21 5:52 PM, Brian Eng wrote:
Since I'm not sure if that's part of the pressure system or not, so Bob/Hall B will need to connect the tubing to the MFC.

There is already ambient sensors connected to the hardware interlocks. When I was connecting the patch panel I wasn't sure where the other environmental ones for the V450 went.

As for the ambient sensors, do you know which ones were used in the L1C area? I can add that later tonight.

________________________________
From: Yuri Gotra <gotra at jlab.org><mailto:gotra at jlab.org>
Sent: Tuesday, April 27, 2021 4:39 PM
To: Brian Eng <beng at jlab.org><mailto:beng at jlab.org>
Cc: Marco Battaglieri <battagli at jlab.org><mailto:battagli at jlab.org>; dsg-hallb_svt at jlab.org<mailto:dsg-hallb_svt at jlab.org> <dsg-hallb_svt at jlab.org><mailto:dsg-hallb_svt at jlab.org>; Patrizia Rossi <rossi at jlab.org><mailto:rossi at jlab.org>
Subject: Re: [dsg-hallb_svt] Debugging SVT DAQ


Hello Brian,


I am checking it. We would need to have the MFC connected to our nitrogen purging line to control the flow remotely (Sergey already moved it to 86 domain by your request) and ambient sensors (temperature and humidity) to remotely monitor conditions in the clean room. Thank you


On 4/27/21 10:16 AM, Brian Eng wrote:
I didn't change the chiller set points, but that ice was already built up as the bag was slightly peeled back.

I'm not sure the picture conveyed it very well, but the ice build up was fairly thick.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/dsg-hallb_svt/attachments/20210428/c1c26cd4/attachment.html>