Vaisala PTB330 - Manual (Page 128)

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126 _________________________________________________________________ M210855EN-D
Table 22 Temperature Dependence****
Class B
500 ... 1100 hPa ±0.1 hPa
50 ... 1100 hPa ±0.3 hPa
Table 23 Total Accuracy at -40 ... +60°C (-40 ... +140 °F)
Class A Class B
500 ... 1100 hPa ±0.15 hPa ±0.25 hPa
50 ... 1100 hPa ±0.45 hPa
Table 24 Long Term Stability
500 ... 1100 hPa ±0.10 hPa/year
50 ... 1100 hPa ±0.20 hPa/year
*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.
Operating Environment
Table 25 Operating Environment
Pressure range 500 ... 1100 hPa, 50 ... 1100 hPa
Temperature range
Operating without display -40 ... +60°C (-40 ... +140 °F)
Operating with display 0 ... +60°C (-32 ... +140 °F)
Storage without display -55 ... +80 °C (-67 ... +176 °F)
Storage with display -40 ... +80 °C (-40 ... +176 °F)
Maximum pressure limit 5000 hPa abs.
Electromagnetic compatibility EMC standard EN61326-1:1997+ Am1:1998
+ Am2:2001: Industrial Environment