Recent content by Ben_the_Druid

Hey guys good morning, yes the chamber can hold the vacuum for hours, even if its a poor vacuum, its stay at the same level over night. So I was thinking a lot about what you guys wrote and everything. I come to this final answer: Pressure inside the vacuum chamber = difference of chamber...

It is leakfree cause its very small and very simple and I think I would find a leak very quickly. its just the pump, the hose and the vacuum chamber attached to it. the vacuum chamber is a simple pan with a acrylic glass top with a silicon sealing on the border on it with a a vacuum gauge and a...

Thank you for the link, sure I have found some similar tables. I wasn't clear in my expressions sry. I wanted to say that I haven't found a page where it display the actual atmospheric pressure calculated for the elevation that this location is. it shows you only the sealevel pressure at this...

Here(-0.175088, -78.360550) the meteo say its 1014 hpa, i know this is converted to sealevel. We are at 2437.0 m over sealevel. so what is now the hpa at my altitude? I haven't found a page where it display the atmospheric pressure for the altitude. And thank you guys for all your support and...

Thank you for the reply, I am pretty sure my system is leakfree. how should i measure the rest pressure in the vacuum chamber in torr if my meter shows only inHG? I can clearly see a difference of the reading at sealevel, my vacuumgauge is analog. at sealevel it get to almost maximum which is...

Thank you very much for your reply, my vacuum pump is a diaphragm pump, so its oilfree. Why you think the vacuum pump would get a lower pressure(the lower the better) at higher altitude? If 22.4 is max inHG at my altitude then 21 inHG is 93.75% of max vacuum at this altitude, is this the way to...

Hi I live in a high Altitude around 2500 meter over sealevel. I have a vacuum pump, at max my vacuum meter shows 21 inHG inside the vacuum chamber . my vacuum pump(welch 2014B) has a max of 40 torr it say the technical datasheet. What is now my endpressure in torr in my vacuumchamber?It's...