Newbie question regarding vacuum pump kill switch

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SUMMARY

The discussion centers on implementing a vacuum pump kill switch that activates when a specific vacuum level is reached. The user seeks guidance on literature and components, specifically mentioning the need for a vacuum pressure switch. Concerns are raised about whether shutting off the pump would compromise the vacuum, emphasizing the importance of an airtight chamber and check valve. The user also inquires about the feasibility of using a CPLD circuit in this setup.

PREREQUISITES
  • Understanding of vacuum systems and pressure measurements
  • Familiarity with vacuum pressure switches
  • Knowledge of airtight sealing techniques
  • Basic concepts of CPLD circuits
NEXT STEPS
  • Research vacuum pressure switches suitable for specific vacuum levels
  • Explore airtight sealing methods for vacuum chambers
  • Learn about the design and implementation of CPLD circuits
  • Investigate the effects of shutting off a vacuum pump on system integrity
USEFUL FOR

Engineers, hobbyists, and anyone involved in vacuum system design and automation, particularly those looking to enhance their understanding of vacuum pressure control and circuit integration.

agonydrum
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I have a project that I've been working on for awhile and I've recently decided to try and upgrade parts of it. However, my knowledge on the subject is pretty sparse. What I want to do is have a vacuum pump which will shut off when my chamber reaches a certain level of vacuum. If anyone could point me in the direction of literature and or parts I will need I would really appreciate it.
 
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Google vacuum pressure switch.

But do you really want to switch the pump off? Won't that release the vacuum? How much vacuum is it?
 
I don't have the exact vacuum i need on hand but it's not much, I've been using a sort of hand pump piston i made until now. Will it? I had assumed that the pumping chamber would be air tight and serve to hold the vacuum until i could seal the valve to the vacuum chamber.

Also would i be able to use a cpld circuit with that?
 
Last edited:
Air-tight checkvalve in the vacuum line would do it.
 
Thank you for your responses I'll check into to both of those suggestions.
 

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