[Dsg-rich] Interlock sensors - internal lengths of last two cables

[Marco Contalbrigo]

Hi Tyler,
the last two nitrogen interlock lines are 2 m long.
It would be preferable to cover them with heat shrink tubes
to get black. Thanks, Marco.

On Thu, 2 Nov 2017, Marco Contalbrigo wrote:

> Hi Tyler,
> I would like to fix them tomorrow after speaking with Sandro and
> Marco at JLab. See you, Marco.
>
> On Wed, 1 Nov 2017, Tyler Lemon wrote:
>
>> Hello Marco Contalbrigo,
>> 
>> We still do not have the lengths for inside RICH the last two nitrogen 
>> volume interlock
>> sensor cable bundles.
>> 
>> We cannot finish these last two cable bundles unless we know how long the 
>> cables should be.
>> 
>> Best regards,
>> Tyler
>> 
>> 
>> _____________________________________________________________________________________________
>> From: "Tyler Lemon" <tlemon at jlab.org>
>> To: "Marco Contalbrigo" <mcontalb at fe.infn.it>
>> Cc: "dsg-rich" <dsg-rich at jlab.org>
>> Sent: Wednesday, October 25, 2017 3:00:34 PM
>> Subject: [Dsg-rich] Interlock sensors - internal lengths of last two cables
>> 
>> Hello Marco,
>> 
>> The set of six interlock cables with the lengths you provided to be used in 
>> the nitrogen body
>> are almost complete.
>> 
>> The six almost ready are:
>> 2 for inlet (3.5 m)
>> 2 on the aerogel (4 m)
>> 1 for outlet (1 m)
>> 1 close to the EPanel (5 m)
>> 
>> We do not have the internal lengths for the remaining two cables (for a 
>> total of 8 cables for
>> the nitrogen body).
>> 
>> Please let us know these lengths so the cables can be fabricated.
>> 
>> Best regards,
>> Tyler
>> 
>> _____________________________________________________________________________________________
>> From: "Marco Contalbrigo" <mcontalb at fe.infn.it>
>> To: "Tyler Lemon" <tlemon at jlab.org>
>> Cc: "dsg-rich" <dsg-rich at jlab.org>
>> Sent: Friday, October 13, 2017 11:07:16 AM
>> Subject: Interlock sensors
>> 
>> Dear Tyler,
>> as anticipated at the meeting, here is the list of
>> sensors we have in mind.
>> 
>> Each PCB station mounts 2 temperature (T) and 2
>> humidity (H) sensors. I would suggest we cable
>> all of them but connect only one H+T pair per
>> station to the cRio, while keeping the second
>> as spare. Should a sensor have a problem, we
>> would need an access to exchange it with his
>> spare at the cRio.
>> 
>> One option could be to have 4 cables in the
>> short (internal RICH) section and only 2 in the
>> outer (Hall) section. This implies however to
>> access the connectors at the RICH position to
>> be able to exchange the sensors.
>> 
>> -----------------
>> Electronic Panel (EPanel)
>> -----------------
>> Short section: from EPanel to patch panels
>> Lenght as the average of the power supply
>> cables: 6 m.
>> 
>> Long section: from patch panel to cRio
>> patch panel A: 50 feet
>> patch panel B: 65 feet
>> 
>> Priority is cooling monitor, electronic healty
>> and FTOF heat load control. The mimimum would
>> be 6:
>> 
>> 1 for inlet
>> 1 for outlet
>> 2 on the electronics
>> 1 outside the cover
>> 1 on the FTOF
>> 
>> It is clear to have at leat 2 more (for a total
>> of 8) would be worth, to have a better control
>> of possible hot spots.
>> 
>> -------------------
>> N2 volume
>> -------------------
>> Short section: internal to the N2 volume, from
>> relevant locations to the 15-pin feedthrough
>> Lengths can be customized (see below).
>> 
>> Long section: from feed-through to the cRio.
>> Lenghts as for the patch panels.
>> 
>> We do not need to pass by the patch panels.
>> Priority is to monitor the inner volume and
>> control the aerogel. The minimum would be 6:
>> 
>> 2 for inlet (3.5 m)
>> 2 on the aerogel (4 m)
>> 1 for outlet (1 m)
>> 1 close to the EPanel (5 m)
>> 
>> Again, to have 2 more could be wise.
>> 
>> All together, the number would be 6+6=12 stations
>> (one sensor per type connected) as minimum, with
>> 8+8=16 as optimum, given the cRIO capability.
>> 
>> On top of all, we should not forget to calibrate
>> the sensors before installation.
>> 
>> As anticipated, Luca Barion from INFN-FE is
>> supposed to stay at JLab in one week from now.
>> He could join the effort of sensor cabling
>> and calibration if this helps.
>> 
>> Thanks, Marco.
>> 
>> _______________________________________________
>> Dsg-rich mailing list
>> Dsg-rich at jlab.org
>> https://mailman.jlab.org/mailman/listinfo/dsg-rich
>> 
>> 
>