Vaisala PTB220 Bedienungsanleitung PDF herunterladen (Seite 77)

CHAPTER 9____________________________________________________ TECHNICAL SPECIFICATIONS

VAISALA _________________________________________________________________________ 71

CHAPTER 9 TECHNICAL

SPECIFICATIONS

Barometric pressure

Operating range

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

Temperature range

operating -40 ... +60 ºC

with local display 0 ... +60 ºC

storage -60 ... +60 ºC

with local display -20 ... +60 °C

Humidity range non-condensing

Accuracy

0.1 % R

class A class B

Linearity

± 0.05 hPa ± 0.05 hPa ± 0.10 hPa

Hysteresis

± 0.02 hPa ± 0.03 hPa ± 0.03 hPa

Repeatability

± 0.02 hPa ± 0.03 hPa ± 0.03 hPa

Calibration uncertainty

± 70 ppm ± 0.07 hPa ± 0.15 hPa

Accuracy at +20 *C

±100 ppm ± 0.10 hPa ± 0.20 hPa

Temperature dependence

****

± 0.1 hPa ± 0.1 hPa

Total accuracy ± 0.15 hPa ± 0.25 hPa

Long-term stability ± 0.1 hPa / year

Accuracy specifications of Class A barometer in the measuring area

limited to 800 ... 1100 hPa pressure range and temperature of +20 ºC.

* 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.

± 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

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 112 113

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