[Dsg-mvt] MVT/FT Gas Mixing

[mdefurne]

Hi Brian,

The premix bottle is empty. I turned off all the gas flowing in the 
detectors yesterday evening. You can valve off the premix bottle and 
flow Argon in the tanks.

Maxime


Le 27/11/2017 à 15:45, Brian Eng a écrit :
> 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
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