Re: tofp HV error

Date view Thread view Subject view Author view Attachment view

From: Yiqun Wang (yqwang_at_physics.utexas.edu)
Date: Thu Mar 27 2003 - 11:47:53 EST


Got it! We have been keeping an eye on TOFr. Once in a while, one of the
Iread value gets out of range, the voltage automatically reramp itself. I
am told that is normal.

Yiqun Wang

On Thu, 27 Mar 2003, W.J. Llope wrote:

>
> TOFp HV is not on. in fact that's why the light is red.
> SC is trying to communicate with a unit that is physically
> powered off.
> just ignore this red box until further notice...
>
> SC alerts for TOFr HV and/or Gas flow should *not* be ignored...
>
> thanks for the message,
> bill
>
>
>
> At 10:05 AM -0600 3/27/03, Yiqun Wang wrote:
> >Hi,
> >
> >I am the detector operator for shift 7:30-4:30PM. I see that there is red
> >error on SC for tofp HV. Opening the corresponding window shows 4 channals
> >with HV values that are far out of normal set value range.
> >
> >We just ramped up the STAR magnet. There are some beams in the ring. FEEs
> >for all other detectors are off. Jamie Donlup, the shift leader, wonders
> >why the topf HV is on.
> >
> >Yiqun Wang
> >
> >--
> >-------------------------------------------------------------------------
> >| Brookhaven National Lab Yiqun Wang |
> >| Building 902C, Room M6 Department of Physics |
> >| Upton, NY 11973-5000 University of Texas at Austin |
> >| Home: (631)395-5474 Austin, TX 78712 |
> >| Office: (631)344-5268 yqwang_at_physics.utexas.edu |
> >| (631)344-5746 |
> >-------------------------------------------------------------------------
>
>
>

-- 
-------------------------------------------------------------------------
|	Brookhaven National Lab		Yiqun Wang			|
|	Building 902C, Room M6		Department of Physics		|
|	Upton, NY 11973-5000		University of Texas at Austin	|
|	Home:   (631)395-5474		Austin, TX 78712		|
|	Office: (631)344-5268		yqwang_at_physics.utexas.edu	|
|		(631)344-5746						|
-------------------------------------------------------------------------

Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.4 : Thu Jul 24 2003 - 00:39:39 EDT