<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">
FYI </div>
<div id="appendonsend"></div>
<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Timothy Whitlatch <whitey@jlab.org><br>
<b>Sent:</b> Monday, February 28, 2022 7:53 AM<br>
<b>To:</b> Benedikt Zihlmann <zihlmann@jlab.org><br>
<b>Cc:</b> Mark-Macrae Dalton <dalton@jlab.org>; Sergey Furletov <furletov@jlab.org>; Lubomir Pentchev <pentchev@jlab.org>; Naomi Jarvis <nsj@cmu.edu>; Elton Smith <elton@jlab.org>; Mark Stevens <stevensm@jlab.org>; Thomas Britton <tbritton@jlab.org>; Hovanes
Egiyan <hovanes@jlab.org>; Alexander Somov <somov@jlab.org>; Eugene Chudakov <gen@jlab.org><br>
<b>Subject:</b> Re: Power down in HallD and DAQ operations</font>
<div> </div>
</div>
<style type="text/css" style="display:none">
<!--
p
{margin-top:0;
margin-bottom:0}
-->
</style>
<div dir="ltr">
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
Hi All,</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
As far as I know, the outage is still scheduled for tomorrow.</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
All power in the hall and counting house will be cycled for a short period to check breaker panels. Equipment on the UPS will still be powered as there is an automatic switchover.</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
Mark will verify the timing tomorrow.</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
Cheers,<br>
</div>
<div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)">
<br>
</div>
<div id="x_Signature">
<div>
<meta content="text/html; charset=UTF-8">
<div id="x_divtagdefaultwrapper" dir="ltr" style="font-size:12pt; color:#000000; font-family:Calibri,Helvetica,sans-serif">
<p style="margin-top:0px; margin-bottom:0px; margin-top:0; margin-bottom:0">Tim Whitlatch </p>
<p style="margin-top:0px; margin-bottom:0px; margin-top:0; margin-bottom:0">Hall D Engineer<br>
</p>
<p style="margin-top:0px; margin-bottom:0px; margin-top:0; margin-bottom:0">Jefferson Lab</p>
<p style="margin-top:0px; margin-bottom:0px; margin-top:0; margin-bottom:0">757-269-5087<br>
</p>
</div>
</div>
</div>
</div>
<div id="x_appendonsend"></div>
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> zihlmann <zihlmann@jlab.org><br>
<b>Sent:</b> Monday, February 21, 2022 2:18 PM<br>
<b>To:</b> Benedikt Zihlmann <zihlmann@jlab.org><br>
<b>Cc:</b> Mark-Macrae Dalton <dalton@jlab.org>; Sergey Furletov <furletov@jlab.org>; Lubomir Pentchev <pentchev@jlab.org>; Naomi Jarvis <nsj@cmu.edu>; Elton Smith <elton@jlab.org>; Mark Stevens <stevensm@jlab.org>; Timothy Whitlatch <whitey@jlab.org>; Thomas
Britton <tbritton@jlab.org>; Hovanes Egiyan <hovanes@jlab.org>; Alexander Somov <somov@jlab.org>; Eugene Chudakov <gen@jlab.org>; Timothy Whitlatch <whitey@jlab.org><br>
<b>Subject:</b> Power down in HallD and DAQ operations</font>
<div> </div>
</div>
<div><font size="4"><font face="monospace">Hi Everyone,<br>
<br>
Important information: <br>
Tim mentioned that on March 1st (Tuesday next week) there will be a power outage in HallD that will last<br>
for several hours (to also upgrade UPS power capabilities?).<br>
This means all crates need to be turned off on Monday and probably also the computers to make sure we<br>
keep potential damage at a minimum. <br>
<br>
Who is around to help turn off equipment on Monday?<br>
Sergey, can you take care of the DAQ computers?<br>
Hovanes, are there some slow control related equipment that needs to be turned off in a controlled manner?<br>
Mark D., BCAL chillers?<br>
Lubomir, FDC gas system, chillers?<br>
Beni, VXS, VME, HV, LV crates?<br>
<br>
My understanding is that all power is down. Tim, please comment if I misinterpret this power off.<br>
<br>
Some of the equipment like the gas system for the wire chambers need to be checked immediately after<br>
the power is restored to make sure the wire chambers get flushed with the least amount of interruption.<br>
<br>
I propose that on Wednesday March 2nd we turn all the need equipment back on that is required to take
<br>
cosmic data and start up the DAQ to take this data uninterrupted for the following two weeks.<br>
<br>
<br>
cheers,<br>
Beni<br>
<br>
</font></font><br>
<br>
</div>
</div>
</body>
</html>