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Wednesday, September 13, 2017
Eliwell IC901 Plus NTC thermistor probe resistance temperature table
For those who want to know the temperature-resistance data for NTC probe used in Eliwell IC901 digital temperature controller. The following is the data:
Where temperature is measured in degrees Kelvin [K] and resistance is measured in kOhm.
Eliwell and Dixell NTC temperature probe for Arduino
Temp [°C] | Resistance [kΩ] |
-40 | 188.5 |
-39 | 178.5 |
-38 | 169 |
-37 | 160.2 |
-36 | 151.9 |
-35 | 144.1 |
-34 | 136.7 |
-33 | 129.8 |
-32 | 123.3 |
-31 | 117.1 |
-30 | 111.3 |
-29 | 105.7 |
-28 | 100.5 |
-27 | 95.52 |
-26 | 90.84 |
-25 | 86.43 |
-24 | 82.26 |
-23 | 78.33 |
-22 | 74.61 |
-21 | 71.1 |
-20 | 67.77 |
-19 | 64.57 |
-18 | 61.54 |
-17 | 58.68 |
-16 | 55.97 |
-15 | 53.41 |
-14 | 50.98 |
-13 | 48.68 |
-12 | 46.5 |
-11 | 44.43 |
-10 | 42.47 |
-9 | 40.57 |
-8 | 38.77 |
-7 | 37.06 |
-6 | 35.44 |
-5 | 33.9 |
-4 | 32.44 |
-3 | 31.05 |
-2 | 29.73 |
-1 | 28.48 |
0 | 27.28 |
1 | 26.13 |
2 | 25.03 |
3 | 23.99 |
4 | 23 |
5 | 22.05 |
6 | 21.15 |
7 | 20.3 |
8 | 19.48 |
9 | 18.7 |
10 | 17.96 |
11 | 17.24 |
12 | 16.56 |
13 | 15.9 |
14 | 15.28 |
15 | 14.69 |
16 | 14.12 |
17 | 13.58 |
18 | 13.06 |
19 | 12.56 |
20 | 12.09 |
21 | 11.63 |
22 | 11.2 |
23 | 10.78 |
24 | 10.38 |
25 | 10 |
26 | 9.632 |
27 | 9.281 |
28 | 8.944 |
29 | 8.622 |
30 | 8.313 |
31 | 8.014 |
32 | 7.728 |
33 | 7.454 |
34 | 7.192 |
35 | 6.94 |
36 | 6.699 |
37 | 6.467 |
38 | 6.245 |
39 | 6.032 |
40 | 5.827 |
41 | 5.629 |
42 | 5.438 |
43 | 5.255 |
44 | 5.08 |
45 | 4.911 |
46 | 4.749 |
47 | 4.593 |
48 | 4.443 |
49 | 4.299 |
50 | 4.16 |
51 | 4.026 |
52 | 3.896 |
53 | 3.771 |
54 | 3.651 |
55 | 3.536 |
56 | 3.425 |
57 | 3.318 |
58 | 3.215 |
59 | 3.116 |
60 | 3.02 |
61 | 2.927 |
62 | 2.838 |
63 | 2.751 |
64 | 2.668 |
65 | 2.588 |
66 | 2.511 |
67 | 2.436 |
68 | 2.364 |
69 | 2.295 |
70 | 2.228 |
71 | 2.163 |
72 | 2.1 |
73 | 2.039 |
74 | 1.98 |
75 | 1.924 |
76 | 1.869 |
77 | 1.816 |
78 | 1.765 |
79 | 1.716 |
80 | 1.668 |
81 | 1.622 |
82 | 1.577 |
83 | 1.533 |
84 | 1.492 |
85 | 1.451 |
86 | 1.412 |
87 | 1.373 |
88 | 1.336 |
89 | 1.301 |
90 | 1.266 |
91 | 1.232 |
92 | 1.2 |
93 | 1.168 |
94 | 1.137 |
95 | 1.108 |
96 | 1.079 |
97 | 1.051 |
98 | 1.024 |
99 | 0.9984 |
100 | 0.9731 |
101 | 0.9484 |
102 | 0.9246 |
103 | 0.9014 |
104 | 0.8789 |
105 | 0.8572 |
106 | 0.836 |
107 | 0.8155 |
108 | 0.7956 |
109 | 0.7763 |
110 | 0.7576 |
Based on the previous data, this NTC sensor can be modeled using very accurate Steinhart-Hart equation with following constants:
T=1/(0.0008895550077+0.000250946909*Ln(1000*R)+0.0000001960216692*(Ln(1000*R))^3)
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Where temperature is measured in degrees Kelvin [K] and resistance is measured in kOhm.
Tags:
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