Vaisala HMP42 - Manual (Page 54)

HMI41 AND HMP42
Operating Manual
M210317EN-A
50
Accuracy of mixing ratio (gr/lb)
with ambient pressure of 1013.25 mbar
RH/%
10 20 30 40 50 60 70 80 90 100
T/
°F
-40 0.013 0.014 0.015 0.016 0.018 0.019 0.020 0.021 - -
-4 0.099 0.108 0.116 0.125 0.134 0.142 0.151 0.159 - -
32 0.57 0.61 0.65 0.69 0.73 0.77 0.81 0.85 0.89 0.93
68 2.17 2.31 2.44 2.58 2.72 2.87 3.01 3.15 3.30 3.44
104 6.85 7.31 7.77 8.25 8.74 9.25 9.77 10.3 10.9 11.4
140 18.9 20.6 22.3 24.2 26.3 28.5 30.9 33.5 36.4 39.4
176 47.5 54.6 63.0 73.1 85.2 100 118 141 170 208
212 115 151 205 289 434 709 1329 3237 - -
248 288 530 1235 - - - - - - -
284 - - - - - - - - - -
320 - - - - - - - - - -
Accuracy of absolute humidity (gr/ft 3 )
RH/%
10 20 30 40 50 60 70 80 90 100
T/
°F
-40 0.001 0.001 0.001 0.002 0.002 0.002 0.002 0.002 - -
-4 0.009 0.009 0.010 0.011 0.011 0.012 0.013 0.014 - -
32 0.046 0.049 0.052 0.055 0.058 0.060 0.063 0.066 0.069 0.072
68 0.16 0.17 0.18 0.19 0.20 0.21 0.21 0.22 0.23 0.24
104 0.47 0.49 0.52 0.54 0.56 0.58 0.61 0.63 0.65 0.67
140 1.19 1.24 1.29 1.34 1.39 1.43 1.48 1.53 1.58 1.63
176 2.65 2.74 2.84 2.94 3.03 3.13 3.22 3.32 3.41 3.51
212 5.33 5.50 5.67 5.84 6.01 6.18 6.35 6.52 6.69 6.86
248 9.87 10.2 10.4 10.7 11.0 11.3 11.5 11.8 12.1 12.4
284 17.0 17.5 17.9 18.3 18.7 19.2 19.6 20.0 20.5 20.9
320 27.7 28.3 28.9 29.6 30.2 30.8 31.4 32.1 32.7 33.3
Accuracy of wet bulb temperature (°F)
RH/%
10 20 30 40 50 60 70 80 90 100
T/
°F
-40 0.36 0.36 0.36 0.36 0.36 0.36 0.36 0.37 - -
-4 0.37 0.38 0.38 0.38 0.39 0.39 0.40 0.40 - -
32 0.49 0.50 0.51 0.51 0.52 0.53 0.54 0.55 0.55 0.56
68 0.82 0.81 0.81 0.80 0.79 0.78 0.78 0.77 0.76 0.76
104 1.51 1.39 1.29 1.21 1.15 1.09 1.05 1.00 0.97 0.94
140 2.62 2.16 1.86 1.64 1.49 1.37 1.28 1.20 1.14 1.09
176 4.03 2.96 2.38 2.03 1.79 1.61 1.48 1.38 1.29 1.22
212 5.52 3.68 2.84 2.36 2.05 1.83 1.66 1.54 1.44 1.36
248 6.94 4.33 3.26 2.67 2.30 2.04 1.85 1.70 1.59 1.49
284 8.23 4.92 3.65 2.97 2.54 2.25 2.03 1.87 1.74 1.63
320 9.41 5.48 4.03 3.26 2.78 2.45 2.21 2.03 1.89 1.77