<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div><br></div><div>Hello Amrit,</div><div><br data-mce-bogus="1"></div><div>This is for your information.</div><div><br data-mce-bogus="1"></div><div>Pablo</div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Scot Spiegel" <spiegel@jlab.org><br><b>To: </b>"Brian Eng" <beng@jlab.org><br><b>Cc: </b>"Ruben Fair" <rfair@jlab.org>, "Probir Ghoshal" <ghoshal@jlab.org>, "Pablo Campero" <campero@jlab.org><br><b>Sent: </b>Monday, July 17, 2017 6:27:58 PM<br><b>Subject: </b>Re: [Dsg-hallb_magnets] Hall B Solenoid - temperature sensors<br></div><br><div data-marker="__QUOTED_TEXT__"><div style="color: rgb(0, 0, 0); font-family: arial,helvetica,sans-serif; font-size: 10pt;"><div>Brian,</div><br><div>All temperature sensor cables are disconnected. Voltage Tap cable to FT 8605 is also disconnected. </div><br><div>Shorting foam is installed on all feedthroughs. Will resume tomorrow by installing system cables interlock loops on vacuum connectors FT's 8602-8605<br></div><br><div>Regards,<br></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>"Brian Eng" <beng@jlab.org><br><b>To: </b>"Ruben Fair" <rfair@jlab.org><br><b>Cc: </b>"Pablo Campero" <campero@jlab.org>, "Scot Spiegel" <spiegel@jlab.org><br><b>Sent: </b>Monday, July 17, 2017 6:20:27 PM<br><b>Subject: </b>Re: [Dsg-hallb_magnets] Hall B Solenoid - temperature sensors<br></div><br><div>Ruben,
I just talked with Pablo as he was leaving, it wasn't clear if you guys were going to try and connect the temp sensors again today.
If so I can check them either remotely or I can stop by the lab later as I'm going to my brothers and will be in the area for a bit.
----- Ruben Fair wrote:
> Hi Pablo,
>
> Scot has disconnected all the cables temporarily.
>
> We should re-connect them within the next 15 mins.
>
> Also, there is a broken wire on Feed thru 8604 which Scot is trying to fix.
>
> Ruben
>
>
>
> From: "Pablo Campero Rojas"
> To: "Ruben Fair"
> Cc: "dsg-hallb magnets"
> Sent: Monday, July 17, 2017 5:23:02 PM
> Subject: Re: Hall B Solenoid - temperature sensors
>
> Hello Ruben,
>
> I checked the sensors that is reading back 0.0 K
>
> TR8671
> TR8673
> TR8611
> TR8672
> TR8674
> TR8610
>
> The mentioned sensors are read by the Cryocon Units, so I have to go and check the cryocon units readouts and also make sure that the mentioned temperature sensors are physically connected in the Solenoid Service Tower.
> PLC is reading 0.0 K values because the Cryocon Unit is reading a real zero (which we know is not possible at this moment) or it has a ''clip'' readback on its channels where the temperature sensors is connected (Most probably for now).
>
>
> Best Regards,
> Pablo
>
>
>
> From: "Ruben Fair"
> To: "Pablo Campero Rojas" , "Probir Ghoshal"
> Cc: "Scot Spiegel"
> Sent: Monday, July 17, 2017 4:35:26 PM
> Subject: Hall B Solenoid - temperature sensors
>
> Pablo, Probir,
>
> All the temperature sensors are now installed and the connectors are still plugged in.
>
> Please review all the sensors on EPICS and see if they are all reading what you expect.
>
> If not, please work with each other to assign correct calibration curves.
>
> I shall disconnect the cables first thing tomorrow morning at 7am as welding will start shortly after.
>
> Regards
>
> Ruben
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