![background image](http://html1.mh-extra.com/html/nelson/cm-2201/cm-2201_installation-and-operating-instructions-manual_3921423043.webp)
CM-2201/CM-2202
Appendices
RTD Tables (°F)
Appendix G
©2018 Nelson Heat Tracing Systems
www.nelsonheaters.com
GA2497 Rev.6
43
100WPlatinum RTD Ω- 0.00385 coefficient
°F
0
1
2
3
4
Resistance in Ohms
5
6
7
8
9
10
°F
-320
20.44
20.20
19.96
19.72
19.48
19.24
19.00
18.76
18.52
-320
-310
22.83
22.59
22.35
22.11
21.87
21.63
21.39
21.16
20.92
20.68
20.44
-310
-300
25.20
24.97
24.73
24.49
24.25
24.02
23.78
23.54
23.30
23.06
22.83
-300
-290
27.57
27.33
27.10
26.86
26.62
26.39
26.15
25.91
25.68
25.44
25.20
-290
-280
29.93
29.69
29.46
29.22
28.98
28.75
28.51
28.28
28.04
27.81
27.57
-280
-270
32.27
32.04
31.80
31.57
31.34
31.10
30.87
30.63
30.40
30.16
29.93
-270
-260
34.61
34.38
34.14
33.91
33.68
33.44
33.21
32.98
32.74
32.51
32.27
-260
-250
36.94
36.71
36.47
36.24
36.01
35.78
35.54
35.31
35.08
34.84
34.61
-250
-240
39.26
39.03
38.80
38.56
38.33
38.10
37.87
37.64
37.40
37.17
36.94
-240
-230
41.57
41.34
41.11
40.88
40.65
40.42
40.19
39.95
39.72
39.49
39.26
-230
-220
43.88
43.65
43.42
43.19
42.96
42.73
42.49
42.26
42.03
41.80
41.57
-220
-210
46.17
45.94
45.71
45.48
45.26
45.03
44.80
44.57
44.34
44.11
43.88
-210
-200
48.46
48.23
48.00
47.78
47.55
47.32
47.09
46.86
46.63
46.40
46.17
-200
-190
50.74
50.52
50.29
50.06
49.83
49.60
49.38
49.15
48.92
48.69
48.46
-190
-180
53.02
52.79
52.56
52.34
52.11
51.88
51.65
51.43
51.20
50.97
50.74
-180
-170
55.29
55.06
54.83
54.61
54.38
54.15
53.93
53.70
53.47
53.25
53.02
-170
-160
57.55
57.32
57.10
56.87
56.65
56.42
56.19
55.97
55.74
55.51
55.29
-160
-150
59.81
59.58
59.35
59.13
58.90
58.68
58.45
58.23
58.00
57.78
57.55
-150
-140
62.06
61.83
61.61
61.38
61.16
60.93
60.71
60.48
60.26
60.03
59.81
-140
-130
64.30
64.08
63.85
63.63
63.40
63.18
62.95
62.73
62.50
62.28
62.06
-130
-120
66.54
66.31
66.09
65.87
65.64
65.42
65.20
64.97
64.75
64.52
64.30
-120
-110
68.77
68.55
68.33
68.10
67.88
67.66
67.43
67.21
66.99
66.76
66.54
-110
-100
71.00
70.78
70.55
70.33
70.11
69.89
69.66
69.44
69.22
68.99
68.77
-100
-90
73.22
73.00
72.78
72.56
72.33
72.11
71.89
71.67
71.45
71.22
71.00
-90
-80
75.44
75.22
75.00
74.78
74.55
74.33
74.11
73.89
73.67
73.45
73.22
-80
-70
77.66
77.43
77.21
76.99
76.77
76.55
76.33
76.11
75.88
75.66
75.44
-70
-60
79.86
79.64
79.42
79.20
78.98
78.76
78.54
78.32
78.10
77.88
77.66
-60
-50
82.07
81.85
81.63
81.41
81.19
80.97
80.75
80.53
80.31
80.09
79.86
-50
-40
84.27
84.05
83.83
83.61
83.39
83.17
82.95
82.73
82.51
82.29
82.07
-40
-30
86.47
86.25
86.03
85.81
85.59
85.37
85.15
84.93
84.71
84.49
84.27
-30
-20
88.66
88.44
88.22
88.00
87.78
87.56
87.34
87.13
86.91
86.69
86.47
-20
-10
90.85
90.63
90.41
90.19
89.97
89.75
89.54
89.32
89.10
88.88
88.66
-10