Re: [AMMRL] Missing Component for Deenergizing #Hardware

From: dennisonpr <dennison_at_uci.edu>
Date: Fri, 26 Jul 2024 16:48:27 -0700

Hi Luke,

When I have done this in the past, I used use short jumper leads with
crocodile clips to connect the pins on the magnet connector to a 9V
battery. Having already connect a resistive load to dump the current, of
course. The pin outs were all listed in the magnet manuals.

Regards,

Phil Dennison

On 20240726 14:02, Fulton, Luke wrote:
> Hi All,
> We have an unshielded 400 MHz Spectrospin magnet that we're preparing
> to decommission. Our initial plan was to induce a quench either by
> opening the vacuum seal, or cease nitrogen fills and let boil off
> handle the rest. After speaking with a magnet engineer we think our
> lab layout slightly too crowded for that approach; this magnet's stray
> field could distort outwards during an "uncontrolled"  quench. We're
> now considering using the charging rods to deenergize more gently.
> Trouble is, something's gone missing since the magnet was installed in
> 1995. We have both rods, diode, and a battery for cycling down, but we
> don't have anything (pin outs?) to connect rods to battery. Is anyone
> willing to loan us a compatible set of
> connectors/adapters/power-source? If you're in the New England area we
> could come in person and save you the trouble of mail.
> Spectrospin
> 400 MHz / 52 mm
> Coil No. : BZH 160 ' 40 ' 67 A
> Dewar No. : D 105 / 52 / 2219
> Kind regards,
> Luke
> ==
> Luke Fulton, PhD
> CHEM BLDG R003
> NMR Core Facility Director
> Unit 3060
> COR2E & Department of Chemistry
> 55 N Eagleville Road
> University of Connecticut
> Storrs, CT 06279
> email: fko24003_at_uconn.edu
> (alias): luke.fulton_at_uconn.edu
> mobile: (603) 953-5275
>


-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#1462): https://urldefense.com/v3/__https://ammrl.groups=
.io/g/main/message/1462__;!!PvDODwlR4mBZyAb0!TYvug__hKGVhMZAQjUWdwExwYEnhio=
RDb85DDIy9UKDFcg32CcHMg07skcoJmIeYpbgQ1tckhZ9nongi$
Mute This Topic: https://urldefense.com/v3/__https://groups.io/mt/107570025=
/7559972__;!!PvDODwlR4mBZyAb0!TYvug__hKGVhMZAQjUWdwExwYEnhioRDb85DDIy9UKDFc=
g32CcHMg07skcoJmIeYpbgQ1tckhRlF2j4Y$
Mute #hardware:https://urldefense.com/v3/__https://ammrl.groups.io/g/main/m=
utehashtag/hardware__;!!PvDODwlR4mBZyAb0!TYvug__hKGVhMZAQjUWdwExwYEnhioRDb8=
5DDIy9UKDFcg32CcHMg07skcoJmIeYpbgQ1tckhf5JJSps$
Group Owner: main+owner_at_ammrl.groups.io
-=-=-=-=-=-=-=-=-=-=-=-




Received on Fri Jul 26 2024 - 16:49:31 MST

This archive was generated by hypermail 2.4.0 : Sat Aug 03 2024 - 15:02:58 MST