Hi,

I have in the lab a TSQ Quantumm access Max triplequad mass spec. since last year it was not opened. Had a problem regarding the ion gauge. exchanged it. more, now, I have a problem with forepump pressure, does not reach 1 mTorr. Want to ask if the vacuum gauge starts of the minimum forepump pressure is reached or if the turbomolecullar pump shoud start in the meantime with forepump vacuum. a technician told me that there is a leak. verified the vacuum vent valve and its fine but I can not figure what could be the problem. I'm afraid it's not an electronic problem, faulty electronical board or something.

thanks in advance!

More Bogdan Cioroiu's questions See All
Similar questions and discussions