12
| THERMISTOR TEMPERATURE DERIVATION | GEOKON
B.3 THERMISTOR RESISTANCE FOR 10KΩ
Thermistor Type: US Sensor 103JL1A
Resistance to Temperature Equation:
EQUATION 3:
Thermistor Resistance for 10KΩ
Where:
T
= Temperature in °C
LnR
= Natural Log of Thermistor Resistance
A
= 1.127670 x 10
-3
B
= 2.344442 x 10
-4
C
= 8.476921 x 10
-8
D
= 1.175122 x 10
-11
Note:
Coefficients optimized for a curve
J
Thermistor over the temperature
range of 0 °C to +250 °C.
TABLE 9:
Thermistor Resistance for 10KΩ
T =
1
– 273.15
A+B(LnR)+C(LnR)
3
+D(LnR)
5
Ohms
Temp Ohms Temp Ohms Temp Ohms Temp Ohms Temp Ohms Temp Ohms Temp Ohms Temp
32,650 0
7,402 32
2,157 64
763.5 96
316.6 128
148.4 160
76.5
192
42.8
224
31,029 1
7,098 33
2,083 65
741.2 97
308.7 129
145.1 161
75.0
193
42.1
225
29,498 2
6,808 34
2,011 66
719.6 98
301.0 130
142.0 162
73.6
194
41.4
226
28,052 3
6,531 35
1,942 67
698.7 99
293.5 131
138.9 163
72.2
195
40.7
227
26,685 4
6,267 36
1,876 68
678.6 100
286.3 132
135.9 164
70.8
196
40.0
228
25,392 5
6,015 37
1,813 69
659.1 101
279.2 133
133.0 165
69.5
197
39.3
229
24,170 6
5,775 38
1,752 70
640.3 102
272.4 134
130.1 166
68.2
198
38.7
230
23,013 7
5,545 39
1,693 71
622.2 103
265.8 135
127.3 167
66.9
199
38.0
231
21,918 8
5,326 40
1,637 72
604.6 104
259.3 136
124.6 168
65.7
200
37.4
232
20,882 9
5,117 41
1,582 73
587.6 105
253.1 137
122.0 169
64.4
201
36.8
233
19,901 10
4,917 42
1,530 74
571.2 106
247.0 138
119.4 170
63.3
202
36.2
234
18,971 11
4,725 43
1,480 75
555.3 107
241.1 139
116.9 171
62.1
203
35.6
235
18,090 12
4,543 44
1,432 76
539.9 108
235.3 140
114.5 172
61.0
204
35.1
236
17,255 13
4,368 45
1,385 77
525.0 109
229.7 141
112.1 173
59.9
205
34.5
237
16,463 14
4,201 46
1,340 78
510.6 110
224.3 142
109.8 174
58.8
206
33.9
238
15,712 15
4,041 47
1,297 79
496.7 111
219.0 143
107.5 175
57.7
207
33.4
239
14,999 16
3,888 48
1,255 80
483.2 112
213.9 144
105.3 176
56.7
208
32.9
240
14,323 17
3,742 49
1,215 81
470.1 113
208.9 145
103.2 177
55.7
209
32.3
241
13,681 18
3,602 50
1,177 82
457.5 114
204.1 146
101.1 178
54.7
210
31.8
242
13,072 19
3,468 51
1,140 83
445.3 115
199.4 147
99.0
179
53.7
211
31.3
243
12,493 20
3,340 52
1,104 84
433.4 116
194.8 148
97.0
180
52.7
212
30.8
244
11,942 21
3,217 53
1,070 85
421.9 117
190.3 149
95.1
181
51.8
213
30.4
245
11,419 22
3,099 54
1,037 86
410.8 118
186.1 150
93.2
182
50.9
214
29.9
246
10,922 23
2,986 55
1,005 87
400.0 119
181.9 151
91.3
183
50.0
215
29.4
247
10,450 24
2,878 56
973.8 88
389.6 120
177.7 152
89.5
184
49.1
216
29.0
248
10,000 25
2,774 57
944.1 89
379.4 121
173.7 153
87.7
185
48.3
217
28.5
249
9,572
26
2,675 58
915.5 90
369.6 122
169.8 154
86.0
186
47.4
218
28.1
250
9,165
27
2,579 59
887.8 91
360.1 123
166.0 155
84.3
187
46.6
219
8,777
28
2,488 60
861.2 92
350.9 124
162.3 156
82.7
188
45.8
220
8,408
29
2,400 61
835.4 93
341.9 125
158.6 157
81.1
189
45.0
221
8,057
30
2,316 62
810.6 94
333.2 126
155.1 158
79.5
190
44.3
222
7,722
31
2,235 63
786.6 95
324.8 127
151.7 159
78.0
191
43.5
223
