Vaisala PTB330TS Guide de l'utilisateur télécharger pdf (Page 83)

Chapter 7 ____________________________________________________________ Technical Data

VAISALA_______________________________________________________________________ 81

Performance

Barometric Pressure (PTB330)

Measurement range 500 ... 1100 hPa

Linearity* ± 0.05 hPa

Hysteresis* ± 0.03 hPa

Repeatability* ± 0.03 hPa

Calibration uncertainty** ± 0.07 hPa

Accuracy at +20 °C (+68 °F)** ± 0.10 hPa

Temperature dependence**** ± 0.1 hPa

Total accuracy at -10 ... +40 °C

(+14 ... +104 °F)

± 0.15 hPa

Long term stability ± 0.10 hPa/year

Settling time at power-up (one sensor) 4 s

Response time (one sensor) 2 s

Acceleration sensitivity negligible

* Defined as ±2 standard deviation limits of endpoint non-linearity, hysteresis 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 endpoint 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.

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Vaisala PTB330TS Guide de l'utilisateur Page 83