[Hallb-engineering] Torus polarity probe

[Mac Mestayer]

Hello Dave;

I have no problem with removing it from the alarm handler
if it cannot happen.
 				- Mac

"mestayer at jlab.org", (757)-269-7252

On Mon, 17 May 2010, David Kashy wrote:

> Hello Mac,
> I believe then in this case we should have no alarm  on polarity!
> This is something that does not change once setup by the engineering staff 
> and only on request from the spokespersons and PDL.
>
> So my suggestion it to completely remove it from the alarm handler or set the 
> values to no alarm and just have the value in the data stream.
>
> What do you think? you may want to consult Stepan.
>
> Thanks
> Dave
>
>
> Mac Mestayer wrote:
>> Hello Dave;
>> 
>> I'm currently the PDL.  It's bad practice to tell shift
>> people to ignore an alarm, unless it's temporary.
>> I suggest that you post a message to the effect that
>> the alarm is not valid and should be ignored FOR NOW.
>> You (or Krister or Steve) should post it in multiple
>> places (post-it notes at various places, on white-board,
>> on today's banner for current run (talk to run coordinator)),
>> etc.  Please indicate that it's temporary, also date the
>> notes and sign them.
>> 
>> Tell me if this is ok, and when it's been done.
>>
>>                 regards, Mac
>> 
>> "mestayer at jlab.org", (757)-269-7252
>> 
>> On Mon, 17 May 2010, David Kashy wrote:
>> 
>>> Sounds good,
>>> then someone should talk to the PDL and have them explain to the shift
>>> workers that this is diagnostic for them and not to call the on call
>>> unless the magnet current it going down!
>>> 
>>> Thanks
>>> 
>>> 
>>> 
>>> Krister Bruhwel wrote:
>>>> If I understand this correctly, its not part of the pager, but part of
>>>> an alarm system that the counting house folks made and use and should
>>>> not issue pages to the on-call pager.  They more than likely made a
>>>> manual page based on some GUI screen or alarm handler they set up.
>>>> 
>>>> These are the only Torus signals that our alarm hander sends to the
>>>> on-call pager:
>>>> 
>>>> 
>>>> 
>>>> David Kashy wrote:
>>>>> I consider this a nusiance alarm and it should be data logged but
>>>>> removed fromt he on call pager.
>>>>> The guys in the counting room should be watching the data from the
>>>>> detector and know if the torus is working properly.
>>>>> Krister,
>>>>> Please remove it from the pager and keep an eye on the read back. Also
>>>>> check it out for a bad connection, or water dripping somewhere...
>>>>> 
>>>>> Thanks
>>>>> Dave
>>>>> 
>>>>> 
>>>>> 
>>>>> Steve Christo wrote:
>>>>> 
>>>>>> Between about 3:00am on 5/15 and midnight 5/16 the polarity probe on 
>>>>>> the
>>>>>> Torus was oscillating and giving an alarm based on the signed torus
>>>>>> current. The problem seems to have fixed itself and has not resulted in
>>>>>> any significant problems. It might be worth while to investigate the
>>>>>> cause during the next hall opening.
>>>>>> Steve
>>>>>> 
>>>>>> _______________________________________________
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>>>>>> Hallb-engineering at jlab.org
>>>>>> https://mailman.jlab.org/mailman/listinfo/hallb-engineering
>>>>>> 
>>>>>> 
>>>>> 
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>>> 
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