Vaisala hmt120 User Manual

Temp
Relative Humidity (%RH)
10 20 30 40 50 60 70 80 90 100
160 °C 5.80 3.18 2.30 1.85 1.57 1.38 1.24 1.14 1.06 0.99
A.9.2 Accuracy of Mixing Ratio g/kg (Ambient Pressure 1013
mbar)
Table 50 Accuracy of Mixing Ratio g/kg (Ambient Pressure 1013 mbar)
Temp
Relative Humidity (%RH)
10 20 30 40 50 60 70 80 90 100
-40 °C 0.003 0.003 0.003 0.003 0.003 0.004 0.004 0.004 — —
-20 °C 0.017 0.018 0.019 0.021 0.022 0.023 0.025 0.026 — —
0 °C 0.08 0.09 0.09 0.10 0.10 0.11 0.11 0.12 0.13 0.13
20 °C 0.31 0.33 0.35 0.37 0.39 0.41 0.43 0.45 0.47 0.49
40 °C 0.97 1.03 1.10 1.17 1.24 1.31 1.38 1.46 1.54 1.62
60 °C 2.68 2.91 3.16 3.43 3.72 4.04 4.38 4.75 5.15 5.58
80 °C 6.73 7.73 8.92 10.34 12.05 14.14 16.71 19.92 24.01 29.29
100 °C 16.26 21.34 28.89 40.75 60.86 98.85 183.66 438.56 — —
120 °C 40.83 74.66 172.36 — — — — — — —
A.9.3 Accuracy of Wet Bulb Temperature °C
Table 51 Accuracy of Wet Bulb Temperature °C
Temp
Relative Humidity (%RH)
10 20 30 40 50 60 70 80 90 100
-40 °C 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 — —
-20 °C 0.21 0.21 0.22 0.22 0.22 0.22 0.23 0.23 — —
0 °C 0.27 0.28 0.28 0.29 0.29 0.29 0.30 0.30 0.31 0.31
20 °C 0.45 0.45 0.45 0.44 0.44 0.44 0.43 0.43 0.42 0.42
40 °C 0.84 0.77 0.72 0.67 0.64 0.61 0.58 0.56 0.54 0.52
60 °C 1.45 1.20 1.03 0.91 0.83 0.76 0.71 0.67 0.63 0.60
80 °C 2.23 1.64 1.32 1.13 0.99 0.89 0.82 0.76 0.72 0.68
Appendix A – Calculation Formulas
81

Vaisala hmt120 Specifications

General

Brand	Vaisala
Model	hmt120
Category	Transmitter
Language	English