Vacuum Check

20 10 2010

All photos.

Just out of curiosity I wanted to see how deep a vacuum I could reach with just the ion gauge connected to the pump.

I tested the pump’s bake-out heater:

Heater switch.

Heater collar.

I let the pump and heater run all afternoon and I got as low as 25 nano torr:

It was still dropping slowly when I finished.

 

I also played around with the Hornet’s RS485 digital interface and Labview, but didn’t get too far.

 

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