
HMI41 AND PROBES
Operating Manual M210316EN-A
46
11.4.2 Accuracies in non-metric units
Accuracy of dewpoint temperature (°F)
RH/%
10 20 30 40 50 60 70 80 90 100
T/°F
-40
3.28 1.80 1.33 1.10 0.96 0.86 0.80 0.75 - -
-4
3.76 2.05 1.50 1.22 1.06 0.95 0.88 0.82 - -
32
4.52 2.47 1.80 1.46 1.26 1.13 1.03 0.96 0.90 0.86
68
5.16 2.81 2.04 1.65 1.42 1.26 1.15 1.06 1.00 0.95
104
5.83 3.16 2.29 1.85 1.58 1.40 1.27 1.18 1.10 1.04
140
6.48 3.53 2.55 2.05 1.75 1.55 1.41 1.30 1.21 1.14
176
7.22 3.93 2.84 2.28 1.95 1.72 1.55 1.43 1.33 1.26
212
7.95 4.34 3.13 2.52 2.15 1.89 1.71 1.57 1.46 1.38
248
8.75 4.78 3.45 2.77 2.36 2.08 1.88 1.72 1.60 1.50
284
9.56 5.24 3.78 3.04 2.59 2.28 2.05 1.88 1.75 1.64
320
10.4 5.73 4.14 3.33 2.83 2.49 2.24 2.05 1.90 1.79
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
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