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| Richardson Lab Experimental Log |
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Message ID: 219
Entry time: Fri Sep 1 19:21:19 2023
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| Author: |
Aiden |
| Type: |
Update |
| Category: |
VAC |
| Subject: |
VAC System Heating Update |
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| Started bake 5 today. This will hopefully be a longer and hotter bake with it lasting 6-7 days at around 150 C. The pressure in the chamber before removing the full range gauge and RGA box was 5.01 e-8 torr. The Argon leak was also left open for this bake to hopefully get rid of particulates on it. I also put the heater tape I removed last time back onto the RGA cross. This made the heating up process take much longer as I had to not increase too much or the cross would heat above 150 C. Hopefully some PID settings in the future will help with this issue. I was able to set the PID controllers to 140 C and after some equilibrium time I should be able to get the temperature up to 150 C. The temperature sensors are reading 150 C and 77 C for the RGA cross and Turbo pump cross respectively. The Turbo pump is drawing the normal .17 Amps at 33 C. |