[Dsg-ft] nitrogen purge and humidity

[Amanda Hoebel]

Hi Raffaella,

The gas has been flowing for a little over 6 hours. The humidity started at ~55% for both sensors and has been decreasing throughout the day to ~10% for sensor 1 and ~26% for sensor 2. Are there certain values you are expecting?  

Regards,
Amanda

----- Original Message -----
From: "raffaella devita" <Raffaella.Devita at ge.infn.it>
To: "Amanda Hoebel" <amandah at jlab.org>, "dsg-ft" <dsg-ft at jlab.org>
Sent: Wednesday, June 21, 2017 11:04:24 AM
Subject: Re: [Dsg-ft] nitrogen purge and humidity

Thanks Amanda!
Raffaella

Amanda Hoebel wrote:
> Hi Raffaella,
>
> We have started the gas flow and will monitor the humidity throughout the day.
>
> Regards,
> Amanda
>
> ----- Original Message -----
> From: "raffaella devita" <Raffaella.Devita at ge.infn.it>
> To: "dsg-ft" <dsg-ft at jlab.org>
> Sent: Wednesday, June 21, 2017 4:22:27 AM
> Subject: [Dsg-ft] nitrogen purge and humidity
>
> Dear All,
> as of last week, we were authorized to restart using the FT-Cal nitrogen
> purge from the bottle in the EEL building. We reconnected therefore the
> bottle to the bubblers located under the calorimeter to ti inlet tube
> and check that gas was flowing normally. Since we were leaving at the
> end of last week we could not do much more while to further check the
> system it would be useful to check that the humidity inside the
> calorimeter, now monitored via the compact rio goes down while gas is
> flowing. Could you help us doing this check. It would be sufficient to
> start the gas flow, setting it to give a flow of ~  cm3/s ( few bubbles
> per second in the glass bottle connected to the inlet line) and monitor
> the humidity sensor output for let's say 6-10 hours.
> Let us know if that is possible and if necessary we can provide more
> information.
> Thanks.
> Best regards,
>       Raffaella and Marco
> _______________________________________________
> Dsg-ft mailing list
> Dsg-ft at jlab.org
> https://mailman.jlab.org/mailman/listinfo/dsg-ft
> _______________________________________________
> Dsg-ft mailing list
> Dsg-ft at jlab.org
> https://mailman.jlab.org/mailman/listinfo/dsg-ft