[Dsg-rich] RICH humidity graph

[Amrit Yegneswaran]

brian, 
i agree with you on all points, except: 
" probably get fully instrumented to EPICS first so we have a better idea where the moisture is actually coming from." 

to me its a no-brainer (zip your lip on the comment you're thinking of!) it is coming from the air. 
the system is over pressured nothing gets in. so if the air to start of is as dry as a bone and nothing gets in: 
o where o where does can the moisture be? 
amrit 

From: "Brian Eng" <beng at jlab.org> 
To: "dsg-rich" <dsg-rich at jlab.org> 
Sent: Thursday, May 10, 2018 12:45:47 PM 
Subject: Re: [Dsg-rich] RICH humidity graph 

Yes, but that would require a DA since that's modifying a pressure system. 

A moisture sensor was installed on the tank, that should probably get fully instrumented to EPICS first so we have a better idea where the moisture is actually coming from. There's already a PV, but it's reporting 0 PPM which is pretty hard to believe. 

> On May 10, 2018, at 12:32 PM, Amrit Yegneswaran <yeg at jlab.org> wrote: 
> 
> hi marco, 
> i couldn't see the graphs in your email/log, so pete sent me the graphs. 
> so, it appears the dry air isn't dry ! 
> 
> brian/george, 
> could one add an inline desiccant 
> amrit 
> 

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