Vaisala PTU300 - Manual (Page 181)

Chapter 8 _____________________________________________________________ Technical data
VAISALA _______________________________________________________________________ 179
CHAPTER 8
TECHNICAL DATA
This chapter provides the technical data of the product.
Specifications
Performance
Barometric Pressure
Pressure range 500 ... 1100 hPa, 50 ... 1100 hPa
Accuracy 500 ... 1100 hPa, 500 ... 1100 hPa 50 ... 1100 hPa
Class A Class B
Linearity ±0.05 hPa ±0.10 hPa ±0.20 hPa
Hysteresis* ±0.03 hPa ±0.03 hPa ±0.08 hPa
Repeatability* ±0.03 hPa ±0.03 hPa ±0.08 hPa
Calibration
uncertainty**
±0.07 hPa ±0.15 hPa ±0.20 hPa
Accuracy
at +20 °C***
±0.10 hPa ±0.20 hPa ±0.30 hPa
Temperature
dependence****
±0.1 hPa ±0.1 hPa ±0.3 hPa
Total accuracy
(-40 ... +60 °C/
-40 ... +140 °F)
±0.15 hPa ±0.25 hPa ±0.45 hPa
Long-term
stability/year
±0.1 hPa ±0.1 hPa ±0.2 hPa
Response time
(100 % response)
one sensor
2 s• 1 s• 1 s•
Pressure units hPa, mbar, kPa, Pa, inHg, mmH20, mmHg, torr, psia
*
Defined as ±2 standard deviation limits of endpoint non-linearity,
hysteresis error or repeatability error and calibration.
** Defined as ±2 standard deviation limits of accuracy 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.