<html><body><div style="color: rgb(0, 0, 0); font-family: arial,helvetica,sans-serif; font-size: 10pt;"><div data-marker="__QUOTED_TEXT__"><div style="color: rgb(0, 0, 0); font-family: arial,helvetica,sans-serif; font-size: 10pt;"><div>Pablo,</div><br><div>Thanks for your clearing up that information for me. My calculations were based on a total of 20W per parallel circuit not 20 Watts per heater. </div><br><div>Would you please send me your programmed I/O channel assignments for Local PLC Slot 4. Do they coincide with the most current P & I for the solenoid?</div><br><div> I would like to verify the sensors location / I.D., Name, Description & wiring within the controls rack and update DWG. # D0...-0626. <br></div><br><div>Thanks for your assistance,</div><br><div>Scot Spiegel<br>Sr. Technologist / Designer<br>Physics / Hall D<br>JSA Jefferson Lab<br>12000 Jefferson Ave.<br>Bldg. 55 Rm. 1546-24<br>Newport News, VA. 23606<br>Ph. 757-536-5900<br>Wk. 757-269-5900</div><br><hr id="zwchr"><div><b>From: </b>"Pablo Campero" <campero@jlab.org><br><b>To: </b>"Ruben Fair" <rfair@jlab.org><br><b>Cc: </b>"Scot Spiegel" <spiegel@jlab.org>, "Joseph Matalevich" <josephm@jlab.org>, "Jonathan Creel" <creel@jlab.org>, "Renuka Rajput-Ghoshal" <renuka@jlab.org>, "Tyler Lemon" <tlemon@jlab.org>, "Nicholas Sandoval" <sandoval@jlab.org><br><b>Sent: </b>Thursday, December 15, 2016 11:26:26 AM<br><b>Subject: </b>Re: SST Cartridge heater ratings & Calculations<br></div><br><div><div style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt;"><div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">Hello Ruben,<br><br>I calculated the Max Voltage and Current required for the heater control which needs to be set in the PLC program based on the spreadsheet (See Attached) that I found in the M Drive.<br><br></div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">These are the results that I got and and I programmed:</div><br><div><span style="text-decoration: underline;">HTR8620</span></div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"> Power Required = 40 [W]</div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"> R <span style="font-size: 9pt;">each heater</span> = 72 [ohms]</div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"> R total ( parallel ) = 36 [ohms] </div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"> I max = 1.05 [A]</div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"> V max = 37.94 [V]</div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"><br class="Apple-interchange-newline"><span style="text-decoration: underline;">HTR8672</span></div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"> Power Required = 60 [W]</div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"> R <span style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 12px; font-style: normal; font-weight: normal; word-spacing: 0px; float: none; display: inline !important; white-space: normal; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">each heater</span> = 80 [ohms]</div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"> R total ( parallel ) = 26.667 [ohms] </div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"> I max = 1.50 [A]</div></div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"> Vmax = 40 [V]</div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"><br></div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">Let me know if there is any corrections to modified the PLC program.</div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">Do we want to consider the measured resistance values which are in your calculations ?.</div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;"><br></div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">Regards</div><div style="color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: arial, helvetica, sans-serif; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; orphans: 2; widows: 2; font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px;">Pablo </div></div><br><hr id="zwchr"><div><b>From: </b>"Ruben Fair" <rfair@jlab.org><br><b>To: </b>"Scot Spiegel" <spiegel@jlab.org><br><b>Cc: </b>"Joseph Matalevich" <josephm@jlab.org>, "Jonathan Creel" <creel@jlab.org>, "Renuka Rajput-Ghoshal" <renuka@jlab.org>, "Pablo Campero Rojas" <campero@jlab.org>, "Tyler Lemon" <tlemon@jlab.org>, "Nicholas Sandoval" <sandoval@jlab.org><br><b>Sent: </b>Thursday, December 15, 2016 10:00:37 AM<br><b>Subject: </b>Re: SST Cartridge heater ratings & Calculations<br></div><br><div><div style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 12pt;"><div>Hi Scot,<br></div><br><div>I agree that the 60V, 10 A power supplies are more than adequate for the heaters we have.<br></div><br><div>However, my assessment of voltage and current requirements is a little different from yours as I believe each heater needs to provide a maximum of 20W - see attachment.<br></div><br><div>Regards<br></div><br><div>Ruben<br></div><br><br><hr id="zwchr"><div><b>From: </b>"Scot Spiegel" <spiegel@jlab.org><br><b>To: </b>"Ruben Fair" <rfair@jlab.org>, "Joseph Matalevich" <josephm@jlab.org>, "Jonathan Creel" <creel@jlab.org><br><b>Cc: </b>"Renuka Rajput-Ghoshal" <renuka@jlab.org>, "Pablo Campero Rojas" <campero@jlab.org>, "Tyler Lemon" <tlemon@jlab.org>, "Nicholas Sandoval" <sandoval@jlab.org><br><b>Sent: </b>Thursday, December 15, 2016 9:40:57 AM<br><b>Subject: </b>Re: SST Cartridge heater ratings & Calculations</div></div></div></div></div></div><br></div></div></body></html>