[Dsg-halla_ecal] thermocouple cables

[Donald Jones]

Ok. Good. I think 24 cables might be enough. I have 183 thermocouples right now on ECal. The last cable of 8 channels can be used for process controllers plus whatever else we want to read out like ambient temps.
-Don

Donald Jones
Hall A/C Staff Scientist
Jefferson Lab
Newport News, VA
________________________________
From: Marc Mcmullen <mcmullen at jlab.org>
Sent: Tuesday, July 2, 2024 11:31 AM
To: dsg-halla_ecal at jlab.org <dsg-halla_ecal at jlab.org>; Donald Jones <jonesdc at jlab.org>
Subject: Re: thermocouple cables

Hi Don,

I am reviewing the labeling scheme you sent so we can know how we are going to carry the names to the cRIO input channels and in the software. I see the heater control thermocouples are mapped to the supermodules, starting in the low right corner and working from right to left and then up to the next row on the right.

The aluminum channels look like all zones have an AL1 and and AL2 starting at the low right, and going straight up and around, ending at the very bottom. But each aluminum heater is not uniquely named.

I am making a labeling map for the controls rack so that Mindy Leffel can start processing the thermocouple cables for that side.

You have enough cable to make 25, 100' lengths. The 25th cable will be needed for the Omega thermocouples.

The controls rack side does not need to be terminated, but they will need to be stripped back for insertion into the thermocouple terminal blocks. So your plan sounds good. We may need to have further discussion on the labels to ensure everything maps well.

Your team may need help from Hall A technical to move the spools.

Marc
________________________________
From: Dsg-halla_ecal <dsg-halla_ecal-bounces at jlab.org> on behalf of Donald Jones via Dsg-halla_ecal <dsg-halla_ecal at jlab.org>
Sent: Monday, July 1, 2024 7:45 AM
To: dsg-halla_ecal at jlab.org <dsg-halla_ecal at jlab.org>
Subject: [Dsg-halla_ecal] thermocouple cables

Hi Marc,
I think I will get some of the students started on making thermocouple cables. I am proposing 24 cables for a total of 192 channels. Because we don't have an exact length, I am planning to tell them to make the cables 100' long. The ECal end will be terminated with standard thermocouple connectors and the other end will be left unterminated. Since you don't require any connectors on your end, if you find that the 100' is too long to manage during installation, you can easily cut the cables shorter at that time.
Does this sound good to you?
-Don

Donald Jones
Hall A/C Staff Scientist
Jefferson Lab
Newport News, VA
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