Vaisala GM70 - Manual (Page 62)

USER'S GUIDE ______________________________________________________
62 _____________________________________________________ M010139EN-G
Table 6 Accuracy Specifications
Accuracy (including repeatability, non-linearity and calibration
uncertainty) at 25°C and 1013 hPa.
Probe Accuracy
GMP221
Accuracy specification applies for
CO
2
concentrations above 2% of
full scale
±[1.5% of range + 2% of reading]
GMP222 ±[1.5% of range + 2% of reading]
Property Description / Value
Temperature
dependence, typical -0.3% of reading / °C (reference
25ºC/77ºF)
Pressure dependence,
typical +0.15% of reading / hPa (reference
1013 hPa)
Long-term instability <±5%FS / 2 years
Response time (63%) 20 seconds (GMP221)
30 seconds (GMP222)
Table 7 Other Specifications
Property Description / Value
Warm-up time
with GM70PUMP
30 seconds
15 min full specification
30 min full specification
Operation temperature -20 … + 60ºC
Operation pressure
700 … 1300 hPa
Operation humidity 0 … 100%RH non-condensing
Flow range (diffusion
sampling) 0 … 10 m/s
Probe material PC
Probe cable length 1.9 m