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<p>Dear all,</p>
<p>Leaving the counting house around 9pm, I saw that an additional
plug was installed for the thermostat keeping the flowmeters at
good temperature. Thank you very much! I ll be able to test the
mixing system correctly tomorrow so that we will be ready when we
get beam.</p>
<p>George, thank you for installing the thermostat. Now that it can
be powered up, can you finish the installation tomorrow morning?
So that in the middle of the morning, I switch to the mixing
system (I kept premix tonight because I wanted to study different
DAQ stuff being 100% I have clean gas). <br>
</p>
I do not really know who should do it, but I would be very grateful
if the CF4 bottle could be brought to the Hall B gas shed and
connected to pipes feeding the mixing system.<br>
<br>
Again thank you everyone!<br>
<br>
Kind regards,<br>
<br>
Maxime<br>
<br>
<div class="moz-cite-prefix">Le 05/12/2017 à 15:44, George Jacobs a
écrit :<br>
</div>
<blockquote type="cite"
cite="mid:8a00e0ec-8037-6f12-99cc-64616ce774fc@jlab.org">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<p>Hi Maxime,</p>
<p>The isobutane blanket is now working and the pressure in the
tank is up to 30 psi. You can begin mixing the 10% C4H10 in
argon mix. We need to disconnect the pre-mix and check the
valves are properly lined up. <br>
</p>
<p>The CF4 is still in the bldg 90 gas cage along with the
remaining pre-mix.<br>
</p>
<p>I mounted the thermostat sensor bulb to the MFC mounting plate.
Ready for power on it. I replaced the insulation as well as I
was able. The current ambient temp is mild and each MFC makes ~
12watts of heat from the solenoid control valve, so this is
good to go. Once the thermostat is powered up, it will be ready
for the cold temps on the way. <br>
</p>
<p>Please take care manipulating the insulation behind the rack so
you do not damage the thermostat bulb. This is mounted on the
left side.<br>
</p>
<p>Thanks,</p>
<p>George<br>
</p>
<br>
<div class="moz-cite-prefix">On 12/05/2017 11:58 AM, mdefurne
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:85986642-97ce-a857-e33b-8a86490d2757@jlab.org">
<meta http-equiv="Content-Type" content="text/html;
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<p>Hi Jason<br>
</p>
Thank you very much. This morning, George was working on it and
I hope the blanket is just slow to warm up and not failing.<br>
George would like to have a thermostat installed to make sure
heat tapes will not overheat the flowmeters and consequently
break them. I agree that it would be safer since we are kind of
blind in regulating the power of the heat tape.<br>
<br>
Volker, Walt, would it be possible to have it done as soon as
possible? If everything goes well for the accelerator, tomorrow
evening we have beam sent in the Hall. But I cannot use the
mixing system yet. No real test have been done with it. These
tests include checks that the mixing system works well, but also
tuning the HV setting depending on the quality of the mixture.
(depend strongly on the mixture... this is part of the
"calibration" of micromegas detectors).<br>
<br>
If we have everything we need to do the job, please try to have
it done today. I apologize for the rush but this mixing system
was supposed to be ready a long time ago and not the day prior
engineering run.<br>
<br>
Thank you,<br>
<br>
Kind regards,<br>
<br>
Maxime <br>
<br>
<div class="moz-cite-prefix">Le 05/12/2017 à 10:22, Jason
Willoughby a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:1865393714.5115975.1512487349709.JavaMail.zimbra@jlab.org">
<div style="font-family: arial,helvetica,sans-serif;
font-size: 12pt; color: #000000">
<div>It was completed last night, however it appears the
blanket does not work.<br>
</div>
<div><br>
</div>
<div><br>
</div>
<div data-marker="__SIG_PRE__">Jason Willoughby<br>
FM&L Electrical Engineer<br>
Thomas Jefferson National Accelerator Facility<br>
628 Hofstadter Road STE 1<br>
Newport News, VA 23606<br>
(757)-269-5372<br>
</div>
<div><br>
</div>
<hr id="zwchr" data-marker="__DIVIDER__">
<div data-marker="__HEADERS__"><b>From: </b>"mdefurne" <a
class="moz-txt-link-rfc2396E"
href="mailto:mdefurne@jlab.org" moz-do-not-send="true"><mdefurne@jlab.org></a><br>
<b>To: </b>"Jason Willoughby" <a
class="moz-txt-link-rfc2396E"
href="mailto:jasonw@jlab.org" moz-do-not-send="true"><jasonw@jlab.org></a><br>
<b>Sent: </b>Monday, December 4, 2017 5:04:33 PM<br>
<b>Subject: </b>Re: [Dsg-mvt] Electricity for heating
blanket and heat tape<br>
</div>
<div><br>
</div>
<div data-marker="__QUOTED_TEXT__">Hello Jason,<br>
<br>
When do you think the electrician will add the plug to the
blanket and for<br>
the heat tape?<br>
<br>
Thank you,<br>
<br>
Kind regards,<br>
<br>
Maxime<br>
<br>
<br>
<br>
> George,<br>
><br>
> Since you want this done quickly, I will have to
modify the install a bit.<br>
> In order to avoid an outage and ordering a new GFCI
breaker, I will have<br>
> the electrician install a plug on the blanket cord.
This will allow it to<br>
> be plugged into a GFCI receptacle.<br>
><br>
><br>
> Jason Willoughby<br>
> FM&L Electrical Engineer<br>
> Thomas Jefferson National Accelerator Facility<br>
> 628 Hofstadter Road STE 1<br>
> Newport News, VA 23606<br>
> (757)-269-5372<br>
><br>
><br>
> From: "George Jacobs" <a
class="moz-txt-link-rfc2396E"
href="mailto:jacobsg@jlab.org" moz-do-not-send="true"><jacobsg@jlab.org></a><br>
> To: "Jason Willoughby" <a
class="moz-txt-link-rfc2396E"
href="mailto:jasonw@jlab.org" moz-do-not-send="true"><jasonw@jlab.org></a><br>
> Cc: "mdefurne" <a class="moz-txt-link-rfc2396E"
href="mailto:mdefurne@jlab.org" moz-do-not-send="true"><mdefurne@jlab.org></a>,
"Matthew Marchlik"<br>
> <a class="moz-txt-link-rfc2396E"
href="mailto:marchlik@jlab.org" moz-do-not-send="true"><marchlik@jlab.org></a>,
"dsg-mvt" <a class="moz-txt-link-rfc2396E"
href="mailto:dsg-mvt@jlab.org" moz-do-not-send="true"><dsg-mvt@jlab.org></a><br>
> Sent: Friday, December 1, 2017 2:14:18 PM<br>
> Subject: Re: Electricity for heating blanket and heat
tape<br>
><br>
> Hi Jason,<br>
><br>
> Sounds good. The blanket has a built in thermostat.
Temperature is<br>
> automatically controlled for 90F.<br>
><br>
> Thanks,<br>
> George<br>
><br>
> On 12/1/2017 1:36 PM, Jason Willoughby wrote:<br>
><br>
><br>
><br>
> George,<br>
><br>
> The work is fairly simple and straight forward. I do
not think an<br>
> additional site visit is necessary. I plan on having
the blanket hard<br>
> wired to a SPST switch. Do you require a thermostat
for the blanket?<br>
><br>
><br>
> Jason Willoughby<br>
> FM&L Electrical Engineer<br>
> Thomas Jefferson National Accelerator Facility<br>
> 628 Hofstadter Road STE 1<br>
> Newport News, VA 23606<br>
> (757)-269-5372<br>
><br>
><br>
> From: "George Jacobs" <a
class="moz-txt-link-rfc2396E"
href="mailto:jacobsg@jlab.org" moz-do-not-send="true"><jacobsg@jlab.org></a><br>
> To: "mdefurne" <a class="moz-txt-link-rfc2396E"
href="mailto:mdefurne@jlab.org" moz-do-not-send="true"><mdefurne@jlab.org></a><br>
> Cc: "Jason Willoughby" <a
class="moz-txt-link-rfc2396E"
href="mailto:jasonw@jlab.org" moz-do-not-send="true"><jasonw@jlab.org></a>
, "Matthew Marchlik"<br>
> <a class="moz-txt-link-rfc2396E"
href="mailto:marchlik@jlab.org" moz-do-not-send="true"><marchlik@jlab.org></a>
, <a class="moz-txt-link-abbreviated"
href="mailto:dsg-mvt@jlab.org" moz-do-not-send="true">dsg-mvt@jlab.org</a><br>
> Sent: Friday, December 1, 2017 1:16:22 PM<br>
> Subject: Re: Electricity for heating blanket and heat
tape<br>
><br>
> I have a meeting with Dr Chandler at 3pm, so, I will
be at the target gas<br>
> pad as soon as that is finished.<br>
><br>
> George<br>
><br>
> On 12/1/2017 11:19 AM, mdefurne wrote:<br>
><br>
> BQ_BEGIN<br>
> Dear George, Dear Matt,<br>
><br>
> I went this morning with Jason to take a look at what
needs to be done for<br>
> having electricity for the heating blanket and the
heat tape. Jason will<br>
> certainly go back there this afternoon with an
electrician around 3pm.<br>
> George, can you please go with them?<br>
><br>
> Once the electricity is installed for the blanket, I
will start testing<br>
> and using the mixing system. Is it OK? (I would like
to already use pure<br>
> Argon, can I?)<br>
><br>
> Kind regards,<br>
><br>
> Maxime<br>
><br>
><br>
><br>
><br>
> --<br>
> George Jacobs<br>
> Jefferson Lab (TJNAF)<br>
> STE 12<br>
> 12000 Jefferson Ave.<br>
> Newport News, VA 23606<br>
><br>
> (office) 757-269-7115<br>
><br>
> (cell) 757-876-0480<br>
><br>
> (email) <a class="moz-txt-link-abbreviated"
href="mailto:jacobsg@jlab.org" moz-do-not-send="true">jacobsg@jlab.org</a>
(website) <a class="moz-txt-link-freetext"
href="https://userweb.jlab.org/%7Ejacobsg"
moz-do-not-send="true">https://userweb.jlab.org/~jacobsg</a><br>
><br>
><br>
> BQ_END<br>
><br>
> --<br>
> George Jacobs<br>
> Jefferson Lab (TJNAF)<br>
> STE 12<br>
> 12000 Jefferson Ave.<br>
> Newport News, VA 23606<br>
><br>
> (office) 757-269-7115<br>
><br>
> (cell) 757-876-0480<br>
><br>
> (email) <a class="moz-txt-link-abbreviated"
href="mailto:jacobsg@jlab.org" moz-do-not-send="true">jacobsg@jlab.org</a>
(website) <a class="moz-txt-link-freetext"
href="https://userweb.jlab.org/%7Ejacobsg"
moz-do-not-send="true">https://userweb.jlab.org/~jacobsg</a><br>
><br>
> _______________________________________________<br>
> Dsg-mvt mailing list<br>
> <a class="moz-txt-link-abbreviated"
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><br>
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</blockquote>
<br>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
George Jacobs
Physics Detector Support Group
Jefferson Lab (TJNAF)
STE 12
12000 Jefferson Ave.
Newport News, VA 23606
(office) 757-269-7115
(cell) 757-876-0480
(email) <a class="moz-txt-link-abbreviated" href="mailto:jacobsg@jlab.org" moz-do-not-send="true">jacobsg@jlab.org</a>
(website) <a class="moz-txt-link-freetext" href="https://userweb.jlab.org/%7Ejacobsg" moz-do-not-send="true">https://userweb.jlab.org/~jacobsg</a>
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