Hello Fred,
1. Yes, we can stop the pump when we are using the mixer and connect this line directly before the rotameter. It’s like this in CMS DT analysis with the line 181 and 182.
2. I think the hand valve PV9223 valve allows us to set a pressure in the output of the pump corresponding to the mixer one. Of course the mixer in changing but having something similar in pressure give us something a similar flow in the ratameter ( the same experience from CMS DT). Something can make a trouble, it’s if the length of the 2 lines coming from rack 61 and rack 62 are too different. That will have an impact on the pressure before the pump and then have an impact in the output. but with water analysis, is not a real problem to have difference in flow, if we are between 5 to 40 l/h, the measurement don’t see (almost) anything) the most important is to have NO LEAK.
Cheers
Louis-Philippe
Hi all,
We plan Beatrice and myself to do a Vidyo meeting on Monday morning to speak about the H2O analysis of the MM gas system.
My problem is that we have 3 possible sources of gas to analyse and they will be at different pressure.
The first coming from the mixer will be about 500 mbar and the 2 others will be in negative pressure about -20 mbar.
1. Do we need to foresee in the software to stop the pump (PU-9222) when we take the gas from the mixer (HV-9202/1) and maybe connect the piquage directly before the rotameter (FIV-9213)?
2. Do we need to put a regulation valve at the place of the PV-9223 to compensate the difference between flow/pressure of rack 61 and 62?
I hope you will have a good thinking during the weekend and let talk about it on Monday.
See you,
Fred