Vaisala PTU200 - Manual (Page 51)

C HAPTER 8_________________________________________________________ TECHNICAL DATA
V AISALA _________________________________________________________________________ 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
± 0.08 hPa
± 0.20 hPa
± 0.30 hPa
± 0.30 hPa
± 0.45 hPa
± 0.20 hPa/year
Pressure range 500...1100 hPa 50...1100 hPa
class A class B