Sierra MFC Versus MKS MFC

Started by USMCPMEL, 07-16-2010 -- 09:58:27

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Which mass flow controller is better?

Sierra
1 (25%)
MKS
3 (75%)

Total Members Voted: 4

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USMCPMEL

07-16-2010 -- 09:58:27
Ok I am trying to get a good sampling of our community to see which direction I should head in the future on the beasties...Please vote if you have experience with these.

michthai

#1
07-28-2010 -- 07:00:58
We calibrate literally hundreds of flow controllers annually and by far the MKS is better.  The Sierra's do not hold calibration and that problem gets worse as they age.

Hawaii596

#2
08-03-2010 -- 10:45:34
I've been in and out of the MFC world, but I do calibrate MKS baratrons (hoping to put a second MKS system on line pretty soon).  So MKS is pretty good stuff; but I can't fairly speak to Sierra (although I know of them), as I haven't cal'd many.

I would be showing my age by saying that last time I was calibrating MFC's they were all analogue, and Tylan FC-260 series was popular.
"I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind."
Lord Kelvin (1824-1907)
from lecture to the Institute of Civil Engineers, 3 May 1883
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