[Dsg-rtpc] Ambient pressure readback faulty?

[Brian Eng]

The SF cRIO is the one that has the ambient pressure sensor on the space frame as it was in place prior to RTPC.

https://logbooks.jlab.org/entry/3786223

________________________________________
From: Dsg-rtpc <dsg-rtpc-bounces at jlab.org> on behalf of Sebastian Kuhn <kuhn at jlab.org>
Sent: Monday, February 17, 2020 7:58 PM
To: dsg-rtpc at jlab.org
Cc: Bob Miller; Mohammad Hattawy
Subject: Re: [Dsg-rtpc] Ambient pressure readback faulty?

P.S.: Just as I was sending this, apparently the pressure sensor came back to life (sudden jump in readback at 19:51). This may solve our problem for now, but it is clearly worrisome if this issue can reappear suddenly.

- Sebastian

> On Feb 17, 2020, at 7:53 PM, Sebastian Kuhn <kuhn at jlab.org> wrote:
>
> We are observing a steady increase of the pressure in the RTPC, tracking with a similar increase in the pressure difference with the ambient L3 pressure sensor. Looking at the variable B_SYS_WEATHER_SF_L3_Press, it seems as if the readback is stuck at the same value for several hours. This may also be related to an alarm we are getting on the alarm handler COMMS and other gas systems. We are presently in controlled access and would like to take care of this as soon as possible. Nathan Baltzell suspects that the CRIO computer may be stuck? Please advise!
>
> Thanks - Sebastian


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