Vaisala HUMICAP HMP46 Guide de l'utilisateur télécharger pdf (Page 48)

HMI41 AND PROBES

Operating Manual M210316EN-A

11.3.3 General

Operating temperature range -20...+60 °C

sensor head -40...+100 °C (temporarily + 180 °C)

Storage temperature range -40...+80 °C

Material:

handle ABS plastic

pipe stainless steel

cable PVC spiral cable

Housing classification (electronics) IP65 (NEMA 4)

Weight 450 g (incl. package)

11.4 Accuracy of the calculated quantities

Dewpoint temperature, mixing ratio, absolute humidity and wet bulb tempera-

ture are calculated from the measured relative humidity and temperature

values. The accuracy of the calculated quantities depends on the calibration of

the probe and on performing the measurement correctly. In tables below the

accuracies of the measured values are ±2 %RH and ±0.2°C.

11.4.1 Accuracies in metric units

Accuracy of dewpoint temperature (°C)

RH/%

10 20 30 40 50 60 70 80 90 100

T/°C

-40

1.82 1.00 0.74 0.61 0.53 0.48 0.44 0.42 - -

-20

2.09 1.14 0.83 0.68 0.59 0.53 0.49 0.45 - -

2.51 1.37 1.00 0.81 0.70 0.63 0.57 0.53 0.50 0.48

2.87 1.56 1.13 0.92 0.79 0.70 0.64 0.59 0.55 0.53

3.24 1.76 1.27 1.03 0.88 0.78 0.71 0.65 0.61 0.58

3.60 1.96 1.42 1.14 0.97 0.86 0.78 0.72 0.67 0.64

4.01 2.18 1.58 1.27 1.08 0.95 0.86 0.79 0.74 0.70

100

4.42 2.41 1.74 1.40 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 2.10 1.69 1.44 1.27 1.14 1.05 0.97 0.91

160

5.80 3.18 2.30 1.85 1.57 1.38 1.24 1.14 1.06 0.99

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Vaisala HUMICAP HMP46 Guide de l'utilisateur Page 48