[Hallb-engineering] DC R2 pressure and Helium Buffer dewar problems

[Krister Bruhwel]

Didn't we verify all these values in 2009?

George Jacobs wrote:
> The DCGAS IOC must have been rebooted and loaded the incorrect default 
> values. This happens because the default EPICS boot up values are wrong. 
> I made temporary changes, but the wrong default values will load again 
> if the IOC is rebooted.
>
> The default values should be as follows with no LOW or HI;
> dc_r1out_pres
> HIHI 0.100
> LOLO 0.010
>
> dc_r2out_pres
> HIHI 0.100
> LOLO 0.010
>
> dc_r3out_pres
> HIHI 0.100
> LOLO 0.010
>
>
> kashy at jlab.org wrote:
>   
>> Hi I got a page last night ~ midnight from the counting house on DR R2
>> pressure tickling the .03 low alarm. I asked them if they had checked long
>> term range of this pressure. The answer was no. I asked if the DC was
>> operating normally, the answer was yes.
>> I check the LOLO value of the alarm it is .01 so I had them put the LOW
>> value to .015
>>
>> George or Denny, Please check out the system if we need to make this
>> change permanent or fix something else.
>>
>> After 3am I got another page on the LHe dewar. The IOC had crashed and the
>> shift guys could not get it going. I talked them through it. This was the
>> second crash in less than 24 hrs. Why? And we need to get the proper
>> values in the reboot script. Earlier when this happened I saved the proper
>> settings, but when we do a restore they do not come back properly.
>>
>>
>> Thanks
>> Dave
>>
>>
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>>   
>>     
>
>