Vaisala PTU200 Series Guide de l'utilisateur télécharger pdf (Page 51)

CHAPTER 8_________________________________________________________ TECHNICAL DATA

VAISALA _________________________________________________________________________ 47

CHAPTER 8 TECHNICAL DATA

Barometric pressure

Operating range

Pressure ranges 500 ... 1100 hPa, 50...1100 hPa

Accuracy class

Linearity * ± 0.05 hPa ± 0.10 hPa

Hysteresis * ± 0.03 hPa ± 0.03 hPa

Repeatability * ± 0.03 hPa ± 0.03 hPa

Calibration uncertainty ** ± 0.07 hPa ± 0.15 hPa

Accuracy at +20 *C *** ± 0.10 hPa ± 0.20 hPa

Temperature dependence**** ± 0.1 hPa ± 0.1 hPa

Total accuracy including

one year drift ± 0.15 hPa ± 0.25 hPa

Long-term stability ± 0.1 hPa / year

Response time (100% response) class A class B

one sensor 2 seconds 1 second

* Defined as the ±2 standard deviation limits of end-point non-

linearity, hysteresis error or repeatability error.

** Defined as ±2 standard deviation limits of inaccuracy of the

working standard including traceability to NIST.

*** Defined as the root sum of the squares (RSS) of end-point non-

linearity, hysteresis error, repeatability error and calibration

uncertainty at room temperature.

**** Defined as ±2 standard deviation limits of temperature

dependence over the operating temperature range.

± 0.20 hPa

± 0.08 hPa

± 0.20 hPa

± 0.30 hPa

± 0.45 hPa

± 0.20 hPa/year

Pressure range 500...1100 hPa 50...1100 hPa

class A class B

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Vaisala PTU200 Series Guide de l'utilisateur Page 51