[Dsg-rich] change low temperature alarms on RICH FPGA temperatures map?

[Amrit Yegneswaran]

thanks valery. 
great to see all temps are less than 60c 

perhaps when all your tests are completed, you may wish to consider color ranges, will help dsg (me!) with monitoring during ops. 
something like what the DHS uses!!! 
T<15C or T>65C red (severe)problems 
15c≤T≤30c (low)optimal 
30c<T≤45c (guarded)ok 
45c<T≤60c (elevated)acceptable 
60c<T≤65c (high)barely acceptable 

have a good day. 
amrit 




From: "Valery Kubarovsky" <vpk at jlab.org> 
To: "Amrit Yegneswaran" <yeg at jlab.org> 
Cc: "dsg-rich" <dsg-rich at jlab.org>, "Nathan Baltzell" <baltzell at jlab.org> 
Sent: Wednesday, November 1, 2017 3:06:05 PM 
Subject: Re: [Dsg-rich] change low temperature alarms on RICH FPGA temperatures map? 

I need to understand the distribution of the temperature inside the electronics box. 
It will help us to improve the electronics cooling system. 
Anyway the color scheme is looking differently now. You will see the high t in red btw. 
Take a look to the attached file. You have to reload clascss. 





From: "Amrit Yegneswaran" <yeg at jlab.org> 
To: "dsg-rich" <dsg-rich at jlab.org> 
Cc: "Nathan Baltzell" <baltzell at jlab.org> 
Sent: Wednesday, November 1, 2017 2:54:06 PM 
Subject: Re: [Dsg-rich] change low temperature alarms on RICH FPGA temperatures map? 




BQ_BEGIN

hello, 
i don't understand the logic for the previous request to box in red temps <37C. 
i think it is important to notice the hot-spots. 
above 65C the timing in the FPGAs will be flaky, even though the FPGAs are rated to 85C. 
so, having a red box to indicate temperatures near 65C, lets say >63C would be useful. 

i agree with tyler that lower temps aren't bad. 
one concern might be that he sensor is not reading/communicating, in which case the value should be 0C or lower than the ambient. 
so values below the ambient could also be boxed in red to indicate a potential problem. 
the ambient in the hall is, measured over the years, ~ 18C). 
so if the temp drops below 15C these could also be boxed in red. 

amrit 



From: "Nathan Baltzell" <baltzell at jlab.org> 
To: "Tyler Lemon" <tlemon at jlab.org> 
Cc: "dsg-rich" <dsg-rich at jlab.org> 
Sent: Wednesday, November 1, 2017 2:39:06 PM 
Subject: Re: [Dsg-rich] change low temperature alarms on RICH FPGA temperatures map? 

Hi Tyler, 

It’s colored according to previous requests from RICH group. 

-Nathan 



> On Nov 1, 2017, at 14:33, Tyler Lemon <tlemon at jlab.org> wrote: 
> 
> Hello Nathan, 
> 
> We've been monitoring the RICH electronics during their testing using the RICH FPGA Temperatures Map EPICS screen and have noted that if a temperature is < ~37C, the indicator shows an orange warning. 
> 
> Can the low temperature warnings be removed from this screen or changed to a different color since low temperatures are not a bad thing for the RICH electronics? 
> 
> Best regards, 
> Tyler 


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