[Dsg-mvt] MVT/FT Gas Mixing

[Brian Eng]

Yes, and to make sure the logic works properly as it does different things depending on the pressure.

I saw that the not only are the MFCs valved off upstream, but the mixing tanks are valved off downstream of the MFC.

Also there is a bottle of pre-mix attached to the tanks.

Is it okay if I valve off the pre-mix and flow Ar into the tanks?

----- Original Message -----
> From: "Matthew Marchlik" <marchlik at jlab.org>
> To: "Brian Eng" <beng at jlab.org>
> Cc: dsg-mvt at jlab.org
> Sent: Monday, November 27, 2017 3:30:57 PM
> Subject: Re: MVT/FT Gas Mixing

> Is that to determine if the MFCs are capable of being fully closed?
> Matt
> 
> ----- Original Message -----
> From: "Brian Eng" <beng at jlab.org>
> To: "Matthew Marchlik" <marchlik at jlab.org>
> Cc: dsg-mvt at jlab.org
> Sent: Monday, November 27, 2017 3:27:13 PM
> Subject: Re: MVT/FT Gas Mixing
> 
> Okay.
> 
> I'll open the valves when I go back to the hall in a bit to see if it will build
> pressure in the tank.
> 
> I'll close them when we leave.
> 
>> On Nov 27, 2017, at 3:09 PM, Matthew Marchlik <marchlik at jlab.org> wrote:
>> 
>> Argon is now available in the system. Its currently regulated to 35 psig. There
>> is a manual valve upstream of each MFC.
>> Matt
>> 
>> ----- Original Message -----
>> From: "Brian Eng" <beng at jlab.org>
>> To: "Matthew Marchlik" <marchlik at jlab.org>
>> Cc: dsg-mvt at jlab.org
>> Sent: Tuesday, November 14, 2017 2:58:05 PM
>> Subject: MVT/FT Gas Mixing
>> 
>> Hi Matt,
>> 
>> The code changes are mostly complete, do you know when we'd have gas available
>> (it can be done with N2 or Ar initially) to test with?
>> 
>> The biggest outstanding component is the main GUI screen, but the controls can
>> be done manually if there were to be gas available.
>> 
>> --
>> Brian Eng
>> Detector Support Group
> > 757-269-6018