Appendices CM-2201
34
©2015 Nelson Heat Tracing Systems
www.nelsonheaters.com GA2497 Rev. 2
Appendix E - RTD Tables
Temperature Conversion
Platinum Resistance (-328
°F to 1220°F)
Temperature Coefficient - 0.00385 Ohms/Ohm/
°F
°F
Ohms
°F
Ohms
°F
Ohms
°F
Ohms
°F
Ohms
°F
Ohms
-112
68.33
-76
76.33
-40
84.27
-4
92.16
32
100.00
68
107.79
-111
68.55
-75
76.55
-39
84.49
-3
92.38
33
100.22
69
108.01
-110
68.77
-74
76.77
-38
84.71
-2
92.60
34
100.43
70
108.23
-109
71.00
-73
76.99
-37
84.93
-1
92.82
35
100.65
71
108.44
-108
70.78
-72
77.21
-36
85.15
0
93.03
36
100.87
72
108.66
-107
70.55
-71
77.43
-35
85.37
1
93.25
37
101.09
73
108.87
-106
70.33
-70
77.66
-34
85.59
2
93.47
38
101.30
74
109.09
-105
70.11
-69
77.88
-33
85.81
3
93.69
39
101.52
75
109.3
-104
69.89
-68
78.1
-32
86.03
4
93.91
40
101.74
76
109.52
-103
69.66
-67
78.32
-31
86.25
5
94.12
41
101.95
77
109.73
-102
69.44
-66
78.54
-30
86.47
6
94.34
42
102.17
78
109.95
-101
69.22
-65
78.76
-29
86.69
7
94.56
43
102.39
79
110.17
-100
68.99
-64
78.98
-28
86.91
8
94.78
44
102.60
80
110.38
-99
71.22
-63
79.2
-27
87.13
9
95.00
45
102.82
81
110.6
-98
71.45
-62
79.42
-26
87.34
10
95.21
46
103.04
82
110.81
-97
71.67
-61
79.64
-25
87.56
11
95.43
47
103.25
83
111.03
-96
71.89
-60
79.86
-24
87.78
12
95.65
48
103.47
84
111.24
-95
72.11
-59
80.09
-23
88.00
13
95.87
49
103.69
85
111.46
-94
72.33
-58
80.31
-22
88.22
14
96.09
50
103.90
86
111.67
-93
72.56
-57
80.53
-21
88.44
15
96.3
51
104.12
87
111.89
-92
72.78
-56
80.75
-20
88.66
16
96.52
52
104.34
88
112.10
-91
73.00
-55
80.97
-19
88.88
17
96.74
53
104.55
89
112.32
-90
73.22
-54
81.19
-18
89.10
18
96.96
54
104.77
90
112.53
-89
73.45
-53
81.41
-17
89.32
19
97.17
55
104.98
91
112.75
-88
73.67
-52
81.63
-16
89.54
20
97.39
56
105.20
92
112.96
-87
73.89
-51
81.85
-15
89.75
21
97.61
57
105.42
93
113.18
-86
74.11
-50
82.07
-14
89.97
22
97.83
58
105.63
94
113.39
-85
74.33
-49
82.29
-13
90.19
23
98.04
59
105.85
95
113.61
-84
74.55
-48
82.51
-12
90.41
24
98.26
60
106.07
96
113.82
-83
74.78
-47
82.73
-11
90.63
25
98.48
61
106.28
97
114.04
-82
75.00
-46
82.95
-10
90.85
26
98.7
62
106.50
98
114.25
-81
75.22
-45
83.17
-9
91.07
27
98.91
63
106.71
99
114.47
-80
75.44
-44
83.39
-8
91.29
28
99.13
64
106.93
100
114.68
-79
75.66
-43
83.61
-7
91.50
29
99.35
65
107.15
101
114.90
-78
75.88
-42
83.83
-6
91.72
30
99.57
66
107.36
102
115.11
-77
76.11
-41
84.05
-5
91.94
31
99.78
67
107.58
103
115.33
