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<div class="moz-cite-prefix">All our sinks /hoods are at least
partially interlocked.<br>
<br>
Interlock has no impact on exhaust.<br>
Vendor (Wafab) installed easily accessible separate relay <br>
in front of 24V DIN rail so all accessories are defeated<br>
when tool is not 'enabled'. (e.g. QDR, rinse resistivity etc are
all off).<br>
Some heated baths (e.g., general clean) are bypassed from DIN
control and left hot.<br>
Other heated baths (e.g., special etch) are linked to DIN control
and can not<br>
be heated until tool is 'enabled' by researcher.<br>
Any heated bath requires level sensor, over temp sensor and
integrated sprinkler. <br>
<br>
DI deck hose was spec'd independent of the accessory panel<br>
and is active at all times for emergency water access.<br>
<br>
Before posting response - I had to finally look up what the
acronym <br>
DIN stood for... what a surprise - the NIST of Germany?! Danke
Schon<br>
<a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/DIN_rail">https://en.wikipedia.org/wiki/DIN_rail</a><br>
<a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/Deutsches_Institut_f%C3%BCr_Normung">https://en.wikipedia.org/wiki/Deutsches_Institut_f%C3%BCr_Normung</a><br>
<br>
Bill Flounders<br>
UC Berkeley<br>
<br>
<br>
Weaver, John R wrote:<br>
</div>
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">We
have struggled with this as well and have opted not to
interlock them.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">The
best approach we came up with was to interlock the lights in
the hood. It wouldn’t really inhibit the users, but would be
very noticeable if someone was working in a hood with the
lights off. We didn’t really think that it would have a
safety impact, but that was a concern – reading bottle
labels, etc.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">John<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="margin-left:.5in"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">
<a class="moz-txt-link-abbreviated" href="mailto:labnetwork-bounces@mtl.mit.edu">labnetwork-bounces@mtl.mit.edu</a>
[<a class="moz-txt-link-freetext" href="mailto:labnetwork-bounces@mtl.mit.edu">mailto:labnetwork-bounces@mtl.mit.edu</a>]
<b>On Behalf Of </b>Vito Logiudice<br>
<b>Sent:</b> Wednesday, September 16, 2015 1:16 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a><br>
<b>Subject:</b> [labnetwork] Suggestions for
interlocking fume hoods<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black">Dear
Colleagues,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black">Our
efforts to physically interlock our tools via our lab
management platform (Badger in our case) is progressing
well. In most cases we are interlocking computer monitors,
keyboards or computer mice with good results. <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black">My
team and I have discussed how to best interlock our
numerous fume hoods but were unable to settle on any one
approach. For safety reasons we certainly do not want to
make the hoods entirely unavailable when not enabled by
Badger; ie., we want to encourage their use when lab users
handle chemicals. However we do believe it would be
beneficial to physically interlock them in some fashion to
at least make them somewhat less appealing to use unless
they are first enabled. I’ve searched past threads on this
fantastic network and while I came across some great
related discussions I was unable to find anything which
dealt specifically with hood interlocks. <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black">I’d
greatly appreciate hearing from those of you whom have
interlocked your hoods or are thinking of doing so soon.
I’m curious to know what service or feature you may have
tapped into on a typical hood setup that might include
some combination of spin-coaters, hot plates,
heated/recirculating chemical baths, N2 guns, DI guns etc.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black">Thanks
very much for any insights.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black">Best
regards,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black">Vito<o:p></o:p></span></p>
</div>
<div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black">--</span><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black">Vito
Logiudice P.Eng.</span><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black">Director
of Operations, Quantum NanoFab</span><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black">University
of Waterloo</span><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black">Lazaridis
QNC 1207</span><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black">200
University Avenue West</span><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black">Waterloo,
ON Canada N2L 3G1</span><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black">Tel.:
(519) 888-4567 ext. 38703</span><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black">Email: <a
moz-do-not-send="true"
href="mailto:vito.logiudice@uwaterloo.ca"><a class="moz-txt-link-abbreviated" href="mailto:vito.logiudice@uwaterloo.ca">vito.logiudice@uwaterloo.ca</a></a></span><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:10.5pt;font-family:"Calibri",sans-serif;color:black">Website: </span><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><a
moz-do-not-send="true"
href="https://fab.qnc.uwaterloo.ca"><a class="moz-txt-link-freetext" href="https://fab.qnc.uwaterloo.ca">https://fab.qnc.uwaterloo.ca</a></a><o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:.5in"><span
style="font-size:11.5pt;font-family:"Calibri",sans-serif;color:black"><o:p> </o:p></span></p>
</div>
</div>
</div>
<br>
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