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Operate U6 in Vakuum or pressure

U6 vakuum pressure

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3 replies to this topic

#1 tirolermic

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Posted 16 October 2013 - 07:02 AM

Does anybody see any reasons for putting the U6 not into a vacuum or 5bar SF6 atmosphere?

As there should not be any gastight parts in there I see no reason for not doing it... ;-)

 

It would help me a lot if I could place my U6 into my test vessel where I have such coditions.

 

Thanks for your help!

 

Cheers Michael



#2 LabJack Support

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Posted 16 October 2013 - 07:25 AM

The U6 consists of standard semiconductor components.  I don't know of anything that is gastight, or otherwise might have problems in a vacuum, but then again have never noticed that any of the components said vacuum is okay.



#3 tirolermic

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Posted 16 October 2013 - 09:10 AM

Vacuum down to 0.2 mbar works, just tried it! :-)



#4 LabJack Support

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Posted 16 October 2013 - 10:57 AM

If you want to do some more testing, a couple ideas:

 

  - Jumper a channel to ground, and watch the reading as you change pressure to see how it changes.  I would expect a small change with temperature, but not sure about the vacuum.

 

  - I wonder if the vacuum affects the quartz crystal that makes the clock for the microcontroller.  A way to check that would be to set up a timer in period measurement mode, and then feed that timer a fixed frequency from outside the chamber.  I would expect a small change with temperature, but not sure about the vacuum.




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