Good morning guys,

Here's a pickle for you!

Quick intro:

I'm a new employee, and the company where I work needed a mass spectrometer (MS). They instructed my predecessor to buy one. Instead, he thought better of it and bought a residual gas analyzer (RGA). Long story short, he kinda made it work before breaking down and leaving the company.

Now, I have this RGA set as MS, I'm responsible for it, and the predecessor left virtually no notes/comments/anything.

I'm trying to esteem the volume. I'm using this specific verb because I'm not sure it can be calculated at the current status. After all, I found out that all the manometers are uncalibrated.

Questions:

-Considering that you cannot rely on pressure readings, how would you try to have the best possible esteem for the volume?

-Are you aware of an "analogical way" to calibrate the Manometers or come up with a correction table?

-When I'll finally get the manometers right, I'm going to use V1*P1=V2*P2 to get all the volumes. Do you have a better or more canonical way of determining the volume of a vacuum pneumatic system?

I'm including a small drawing of the system, please note that the volumes written in yellow are just "guesses" right now.

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