Accuracy / linearity SPD310/SPD360

Issue

For Accuracy, only the 0-100 Pa range is listed in the documentation. Same thing with the Linearity.

Product Line

Field Devices

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.