[Dsg-htcc] Power Outage

Krister Bruhwel bruhwel at jlab.org
Mon May 14 11:20:39 EDT 2018


Power outages are 17th and 22nd 5pm to 3am.


On Mon, May 14, 2018 at 11:17:35AM -0400, Marc McMullen wrote:
> Hi Yuri,
> As you may be aware, on May 23 at 5pm the utility power will be turned off
> in Hall B, for 8 hours. DSG will be switching the Space Frame cRIO to clean
> power during the outage, so that the gas controls will not be interrupted.
> Krister is handling the Hall B engineering on-call during this period. We do
> not anticipate any issues with gas control, however, Krister needs a contact
> person from the HTCC group so that he can be advised on any unforeseen
> issues that may arise from the outage.
> Can you have someone contact Krister so these details can be worked out.
> Additionally, if you have concerns about the outage (as far as gas supply is
> concerned), you may want to talk to Denny about having a rotameter installed
> in the place of the mass flow controller, or at least bypassing it. Again,
> we do not believe there will be any issues with the system during this time.
> But if you have questions and concerns, now is the time to bring them up to
> the Hall B Engineering/Mechanical group.
> Thanks,
> -- 
> Marc McMullen
> Detector Support Group
> 757-269-7738

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