Vaisala HMT360 - Manual (Page 85)

Chapter 9 ____________________________________________________________ Technical Data
VAISALA_______________________________________________________________________ 83
Accuracy of Calculated Variables
Accuracy of the calculated variables depend on the calibration accuracy of
the humidity and temperature sensors; here the accuracy are given for ±2
%RH and ±0.2 °C.
Accuracy of Dewpoint Temperature °C
Accuracy of Mixing Ratio g/kg
(Ambient pressure 1013 mbar)
Relative humidity
Temp. 10 20 30 40 50 60 70 80 90 100
-40 1.86 1.03 0.76 0.63 0.55 0.5 0.46 0.43 — —
-20 2.18 1.19 0.88 0.72 0.62 0.56 0.51 0.48 — —
0 2.51 1.37 1 0.81 0.7 0.63 0.57 0.53 0.5 0.48
20 2.87 1.56 1.13 0.92 0.79 0.7 0.64 0.59 0.55 0.53
40 3.24 1.76 1.27 1.03 0.88 0.78 0.71 0.65 0.61 0.58
60 3.6 1.96 1.42 1.14 0.97 0.86 0.78 0.72 0.67 0.64
80 4.01 2.18 1.58 1.27 1.08 0.95 0.86 0.79 0.74 0.7
100 4.42 2.41 1.74 1.4 1.19 1.05 0.95 0.87 0.81 0.76
120 4.86 2.66 1.92 1.54 1.31 1.16 1.04 0.96 0.89 0.84
140 5.31 2.91 2.1 1.69 1.44 1.26 1.14 1.05 0.97 0.91
160 5.8 3.18 2.3 1.85 1.57 1.38 1.24 1.14 1.06 0.99
Relative humidity
Temp. 10 20 30 40 50 60 70 80 90 100
-40 0.003 0.003 0.003 0.003 0.003 0.004 0.004 0.004 — —
-20 0.017 0.018 0.019 0.021 0.022 0.023 0.025 0.026 — —
0 0.08 0.09 0.09 0.1 0.1 0.11 0.11 0.12 0.13 0.13
20 0.31 0.33 0.35 0.37 0.39 0.41 0.43 0.45 0.47 0.49
40 0.97 1.03 1.1 1.17 1.24 1.31 1.38 1.46 1.54 1.62
60 2.68 2.91 3.16 3.43 3.72 4.04 4.38 4.75 5.15 5.58
80 6.73 7.73 8.92 10.34 12.05 14.14 16.71 19.92 24.01 29.29
100 16.26 21.34 28.89 40.75 60.86 98.85 183.66 438.56 — —
120 40.83 74.66 172.36 — — — — — — —