[Testlablcwusers] LCW System Calibrations

[Eric Sun]

Hi Phil,

Thanks a lot.

We plan to fill MOLLER TM4 magnet with LCW starting from 8:00 AM on11/20. We plan to end the filling at 9:00 AM.  The filling rate will be limited to 5 GPM. The magnet is already full of water now. We will just need about 15 gallons.

If we have to fill the magnet after 9:00 AM on 11/20, I will contact you to see if this is permissible.

Our current plan is to energize MOLLER TM4 from Dec 8 to Dec 12.

Many thanks

Eric

________________________________
From: Philip Denny <denny at jlab.org>
Sent: Wednesday, November 19, 2025 7:46 AM
To: Eric Sun <qsun at jlab.org>; Adam Cutler <cutler at jlab.org>; testlablcwusers at jlab.org <testlablcwusers at jlab.org>; Probir Ghoshal <ghoshal at jlab.org>; David Kashy <kashy at jlab.org>
Subject: Re: [Testlablcwusers] LCW System Calibrations

Hello Adam,

My understanding is that the cryomodule in the CMTF will be complete this Friday and start to warm up. That being said it appears there will be a window between Monday Nov24 and Dec 3 for you to do the work. We can confirm on Friday this week to plan a day or two.

Phil

________________________________
From: Testlablcwusers <testlablcwusers-bounces at jlab.org> on behalf of Eric Sun <qsun at jlab.org>
Sent: Tuesday, November 18, 2025 2:10 PM
To: Adam Cutler <cutler at jlab.org>; testlablcwusers at jlab.org <testlablcwusers at jlab.org>; Probir Ghoshal <ghoshal at jlab.org>; David Kashy <kashy at jlab.org>
Subject: Re: [Testlablcwusers] LCW System Calibrations

Hi Adam,

We may energize MOLELR TM4 from Dec 4 to Dec 12. Any other days should be fine with us. But please let me know once the day is chosen to perform LCW maintenance.

Thanks

Eric
________________________________
From: Testlablcwusers <testlablcwusers-bounces at jlab.org> on behalf of Adam Cutler <cutler at jlab.org>
Sent: Tuesday, November 18, 2025 9:34 AM
To: testlablcwusers at jlab.org <testlablcwusers at jlab.org>
Subject: [Testlablcwusers] LCW System Calibrations


Good Morning,



We (Facilities) would like to perform the annual calibration on the controls for the TL LCW system. While controls are being calibrated, system DP control will be placed into manual, as well as system temperature and conductivity will deviate from normal. With DP control in manual, if a flow path is isolated or open, pressure will deviate from normal. Conductivity and temperature will be lower than normal setpoints as control valves are stroked across their full operating range. Calibrations in years past have been completed during one day shift, is there a day (days) that users can support so this task can be coordinated with the subcontractor?



Thanks.



R/

Adam C.

Mechanical Engineer

757-861-5599


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/testlablcwusers/attachments/20251119/009b270a/attachment-0001.htm>