Vaisala HM70 - Manual (Page 76)

User's Guide ______________________________________________________________________
74 __________________________________________________________________ M210297EN-E
Accuracy of Wet Bulb Temperature °C
Relative humidity
Temp. 10 20 30 40 50 60 70 80 90 100
-40 0.20 0.20 0.20 0.20 0.20 0.20 0.20 0.20 — —
-20 0.21 0.21 0.22 0.22 0.22 0.22 0.23 0.23 — —
0 0.27 0.28 0.28 0.29 0.29 0.29 0.30 0.30 0.31 0.31
20 0.45 0.45 0.45 0.44 0.44 0.44 0.43 0.43 0.42 0.42
40 0.84 0.77 0.72 0.67 0.64 0.61 0.58 0.56 0.54 0.52
60 1.45 1.20 1.03 0.91 0.83 0.76 0.71 0.67 0.63 0.60
80 2.23 1.64 1.32 1.13 0.99 0.89 0.82 0.76 0.72 0.68
100 3.06 2.04 1.58 1.31 1.14 1.01 0.92 0.85 0.80 0.75
120 3.85 2.40 1.81 1.48 1.28 1.13 1.03 0.95 0.88 0.83
140 4.57 2.73 2.03 1.65 1.41 1.25 1.13 1.04 0.97 0.91
160 5.25 3.06 2.25 1.82 1.55 1.37 1.24 1.13 1.05 0.99
Accuracy of Absolute Humidity g/m³
Relative humidity
Temp. 10 20 30 40 50 60 70 80 90 100
-40 0.004 0.004 0.005 0.005 0.005 0.006 0.006 0.006 — —
-20 0.023 0.025 0.027 0.029 0.031 0.032 0.034 0.036 — —
0 0.10 0.11 0.12 0.13 0.13 0.14 0.15 0.15 0.16 0.17
20 0.37 0.39 0.41 0.43 0.45 0.47 0.49 0.51 0.53 0.55
40 1.08 1.13 1.18 1.24 1.29 1.34 1.39 1.44 1.49 1.54
60 2.73 2.84 2.95 3.07 3.18 3.29 3.40 3.52 3.63 3.74
80 6.08 6.30 6.51 6.73 6.95 7.17 7.39 7.61 7.83 8.05
100 12.2 12.6 13.0 13.4 13.8 14.2 14.6 15.0 15.3 15.7
120 22.6 23.3 23.9 24.6 25.2 25.8 26.5 27.1 27.8 28.4
140 39.1 40.0 41.0 42.0 43.0 44.0 45.0 45.9 46.9 47.9
160 63.5 64.9 66.4 67.8 69.2 70.7 72.1 73.5 74.9 76.4
General
Humidity sensor HUMICAP
®
180R
HUMICAP
®
180RC
Temperature sensor
Pt100 IEC751 1/3 class B
Operating temperature range for electronics
-40 ... +60 °C, -40 ... +140 °F
Standard sensor protection
HMP75 Plastic grid
HMP76 Sintered bronze filter
HMP77 Grid with SS netting
Housing classification
IP65 (NEMA 4)