Vaisala PTB330TS Guía de usuario Pagina 83

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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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