Capacitance Manometer (Baratron) Question on Millipore/Tylan CDLD Series

Started by Hawaii596, 09-23-2009 -- 15:24:51

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Hawaii596

09-23-2009 -- 15:24:51
As this is an oddball metrological discipline, I won't get my hopes up....

But does anyone have any adjustment diagram info for a Millipore (Tylan) CDLD-11S12 or any CDLD series baratron?  I spent about a whole day trying to reverse engineer the span, low linearity and high linearity on one of these.  I finally managed to get it in spec across its full operating range; but only after plotting numerically how much each adjustment attempt impacted which parts of the range.
"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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