[dsg-svt] SVT Status

[Brian Eng]

Yuri,

Since the humidity seems pretty even between the barrels (~30% with 0.5 L/min flow) we're going to stay with the 2 lines for R4.

Sahin and I tried trouble shooting the bad humidity sensors. We managed to get SB1 H2 to read out a reasonable number (by some combination of reseating pins and/or moving cables around), but the other two sensors (SB1 H1 & SB3 H3) are both reading lower voltage on the only place that has accessible pins, the patch panel.



Peter,

Ambient Temp T2 is causing the cRIO to trip off the SVT even though the temperature being read back is within the limits, so for the time being I've disabled that interlock, but that should be looked at sometime next week.



> On Jan 12, 2017, at 5:41 PM, Brian Eng <beng at jlab.org> wrote:
> 
> He already sealed it after installing another line (2 total).
> 
> If the humidity remains as is (~20s) we'll leave it as is.
> 
>> On Jan 12, 2017, at 1:24 PM, Yuri Gotra <gotra at jlab.org> wrote:
>> 
>> All ambient sensors were good after R4 integration. The problem should be solvable.
>> 
>> Please ask Sahin to redistribute the gas for R4 to 3 tubes to get more uniform purging of the barrel. Thank you.
>> 
>> 
>> On 1/12/17 5:10 PM, Brian Eng wrote:
>>> I don't think that was mounted, but I'll have to check with Sahin when I see him.
>>> 
>>> I did notice those 2 bad humidity sensors (which is why they're taken out of the alarm), but since they're in the inner barrel there isn't much I can do with them, but I'll double check later at some point.
>>> 
>>> I can adjust the valve for R4, but it will take some time to even out.
>>> 
>>> I'll change the voltage and coolant temperature now.
>> 
>> <gotra.vcf>
>