Re: [T3] Measuring fuel pressure -- hose size and fitting?

[Russ Wolfe <russw@classicvw.org>]

On Sun, 2005-05-22 at 21:47, Jim Adney wrote:
> On 20 May 2005 at 21:00, Toby Erkson wrote:
> 
> > Yup, that's why I bought what I bought.  And the accuracy of the middle 
> > range is +/- 0.6psi which is 2% of 30psi...or should it be measured as 
> > 2% of 60psi?
> 
> Electrical meters are rated at a percentage of the full scale pressure. I 
> THOUGHT pressure gauges were rated the same. That's why I've always suggested 
> that people buy a 30 psi gauge.
> 
> We should be able to get a definitive answer from some manufacturer's web site.

All gages are most linear in the middle of their range. Whether it is a
transducer, or a mechanical. For calibration purposes, we set our in
middle of range. Most of our work is done in the 40-60 psi range, so we
calibrate them with linear regression in our PLC's

-- 
Russ Wolfe
'71 FB AT
'66 FB MT
'64 T34 (not running)
'65 T1 (not running)
'05 KIA Sorento SUV
russw@classicvw.org
http://www.classicvw.org

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