[Dsg-dc] gas shed cRio

[Morgan Cook]

The R3 manifold reedback was back on-line when I checked everything in the afternoon.  Any idea what happened?  In the morning, there was a heartbeat to the cRio, but no cpu usage.  The MFCs were on, valve positions looked like they were open, but the flow was 0.  Yet, R1 and R2 had gas flow in the hall.  R3 did not, but the manifold pressure was essentially 0 so that makes sense.  

I don't know what could've caused this other than some power blip. Any thoughts?

-Morgan   

----- Original Message -----

I went over to the gas shed to investigate. All MFC were on, so I rebooted the cRIO. The R3 manifold readback is still not showing pressure. The current pressure in mix tank 1 is 86.8. This concurs with the gauge on the tank. 

Marc McMullen 
Physics Division 
Detector Support Group 
7738 


From: "Brian Eng" <beng at jlab.org> 
To: "Morgan Cook" <mcookiv at jlab.org> 
Cc: "Marc McMullen" <mcmullen at jlab.org>, "dsg-dc" <dsg-dc at jlab.org> 
Sent: Wednesday, June 20, 2018 9:01:24 AM 
Subject: Re: gas shed cRio 

Looks like that cRIO was rebooted ~5 min ago before I could look into what/if anything was wrong. 

----- Original Message ----- 
> From: "Morgan Cook" <mcookiv at jlab.org> 
> To: "Marc McMullen" <mcmullen at jlab.org>, "Brian Eng" <beng at jlab.org> 
> Cc: "dsg-dc" <dsg-dc at jlab.org> 
> Sent: Wednesday, June 20, 2018 7:52:18 AM 
> Subject: gas shed cRio 

> Gentlemen, 
> 
> It looks like there's an issue with the gas shed cRio. All of the mfcs show an 
> open valve position, but no flow through them; the R1-2 control pressure is not 
> reading. 
> 
> -Morgan