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References – Campbell Scientific HMP35C Temperature and RH Sensor User Manual

Page 14

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HMP35C TEMPERATURE AND RH PROBE

12

TABLE 11. Temperature, Resistance, and

Datalogger Output

Temperature

(

°

C)

Resistance

(

)

Output

(

°

C)

-40.00

4067212

-39.18

-38.00

3543286

-37.55

-36.00

3092416

-35.83

-34.00

2703671

-34.02

-32.00

2367900

-32.13

-30.00

2077394

-30.18

-28.00

1825568

-28.19

-26.00

1606911

-26.15

-24.00

1416745

-24.11

-22.00

1251079

-22.05

-20.00

1106485

-20.00

-18.00

980100

-17.97

-16.00

869458

-15.95

-14.00

772463

-13.96

-12.00

687276

-11.97

-10.00

612366

-10.00

-8.00

546376

-8.02

-6.00

488178

-6.05

-4.00

436773

-4.06

-2.00

391294

-2.07

0.00

351017

-0.06

2.00

315288

1.96

4.00

283558

3.99

6.00

255337

6.02

8.00

230210

8.04

10.00

207807

10.06

12.00

187803

12.07

14.00

169924

14.06

16.00

153923

16.05

18.00

139588

18.02

20.00

126729

19.99

22.00

115179

21.97

24.00

104796

23.95

26.00

95449

25.94

28.00

87026

27.93

30.00

79428

29.95

32.00

72567

31.97

34.00

66365

33.99

36.00

60752

36.02

38.00

55668

38.05

40.00

51058

40.07

42.00

46873

42.07

44.00

43071

44.05

46.00

39613

46.00

48.00

36465

47.91

50.00

33598

49.77

52.00

30983

51.59

54.00

28595

53.35

56.00

26413

55.05

58.00

24419

56.70

60.00

22593

58.28

11. REFERENCES

Goff, J. A. and S. Gratch, 1946: Low-pressure

properties of water from -160° to 212°F,
Trans. Amer. Soc. Heat. Vent. Eng., 51,
125-164.

Lowe, P. R., 1977: An approximating

polynomial for the computation of saturation
vapor pressure,

J. Appl. Meteor., 16, 100-

103.

Weiss, A., 1977: Algorithms for the calculation

of moist air properties on a hand calculator,
Amer. Soc. Ag. Eng., 20, 1133-1136.