Issue
For Accuracy, only the 0-100 Pa range is listed in the documentation. Same thing with the Linearity.
Environment
SPD310:
004700320
004700340
SPD360:
004700360
Cause
The sensors are available in several other ranges than just the listed 0-100Pa.
Resolution
Accuracy ( linear output 😞
Accuracy 0-100 Pa:
This means that all other ranges ( 300, 500, 1000, 1200, 2500, 5000 Pa )
has an accuracy of 1,5% FS. Only range 0-100 Pa has a accuracy of 1,5% FS.
0,75 % of higher pressure ranges sensors means more Pa comparing to 1,5% of 100 Pa.
0,75% f.e. of 2500 Pa means a max. deviation of 18,75 Pa.
Same regarding Linearity:
Linearity incl. temp. and hysteresis:
Linearity incl. temp. and hysteresis 0-100 Pa:
As above, for all ranges 300, 500, 1000 … the linearity is < / = 2% FS, but only for range of 100 Pa
linearity is 4% FS.