TABLE 22 Type C Thermocouple ¾ thermoelectric voltage as a function of
temperature (°F); reference junctions at 32 °F
°F 0 1 2 3 4 5 6 7 8 9 10 °F
Thermoelectric Voltage in Millivolts
°F 0 1 2 3 4 5 6 7 8 9 10 °F
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C
°F
30
0.000
0.007
0.015
0.022
0.030
0.037
0.045
0.052
0.060
30
40
0.060
0.067
0.075
0.082
0.090
0.097
0.105
0.112
0.120
0.128
0.135
40
50
0.135
0.143
0.150
0.158
0.165
0.173
0.181
0.188
0.196
0.204
0.211
50
60
0.211
0.219
0.226
0.234
0.242
0.249
0.257
0.265
0.273
0.280
0.288
60
70
0.288
0.296
0.303
0.311
0.319
0.327
0.334
0.342
0.350
0.358
0.366
70
80
0.366
0.373
0.381
0.389
0.397
0.405
0.412
0.420
0.428
0.436
0.444
80
90
0.444
0.452
0.459
0.467
0.475
0.483
0.491
0.499
0.507
0.515
0.523
90
100
0.523
0.531
0.539
0.546
0.554
0.562
0.570
0.578
0.586
0.594
0.602
100
110
0.602
0.610
0.618
0.626
0.634
0.642
0.650
0.658
0.666
0.675
0.683
110
120
0.683
0.691
0.699
0.707
0.715
0.723
0.731
0.739
0.747
0.755
0.764
120
130
0.764
0.772
0.780
0.788
0.796
0.804
0.812
0.821
0.829
0.837
0.845
130
140
0.845
0.853
0.862
0.870
0.878
0.886
0.894
0.903
0.911
0.919
0.927
140
150
0.927
0.936
0.944
0.952
0.960
0.969
0.977
0.985
0.994
1.002
1.010
150
160
1.010
1.019
1.027
1.035
1.044
1.052
1.060
1.069
1.077
1.085
1.094
160
170
1.094
1.102
1.111
1.119
1.127
1.136
1.144
1.153
1.161
1.169
1.178
170
180
1.178
1.186
1.195
1.203
1.212
1.220
1.229
1.237
1.246
1.254
1.263
180
190
1.263
1.271
1.280
1.288
1.297
1.305
1.314
1.322
1.331
1.339
1.348
190
200
1.348
1.357
1.365
1.374
1.382
1.391
1.399
1.408
1.417
1.425
1.434
200
210
1.434
1.443
1.451
1.460
1.468
1.477
1.486
1.494
1.503
1.512
1.520
210
220
1.520
1.529
1.538
1.546
1.555
1.564
1.573
1.581
1.590
1.599
1.607
220
230
1.607
1.616
1.625
1.634
1.642
1.651
1.660
1.669
1.678
1.686
1.695
230
240
1.695
1.704
1.713
1.721
1.730
1.739
1.748
1.757
1.766
1.774
1.783
240
250
1.783
1.792
1.801
1.810
1.819
1.828
1.836
1.845
1.854
1.863
1.872
250
260
1.872
1.881
1.890
1.899
1.908
1.917
1.925
1.934
1.943
1.952
1.961
260
270
1.961
1.970
1.979
1.988
1.997
2.006
2.015
2.024
2.033
2.042
2.051
270
280
2.051
2.060
2.069
2.078
2.087
2.096
2.105
2.114
2.123
2.132
2.141
280
290
2.141
2.150
2.159
2.168
2.177
2.187
2.196
2.205
2.214
2.223
2.232
290
300
2.232
2.241
2.250
2.259
2.268
2.278
2.287
2.296
2.305
2.314
2.323
300
310
2.323
2.332
2.342
2.351
2.360
2.369
2.378
2.387
2.397
2.406
2.415
310
320
2.415
2.424
2.433
2.443
2.452
2.461
2.470
2.480
2.489
2.498
2.507
320
330
2.507
2.517
2.526
2.535
2.544
2.554
2.563
2.572
2.581
2.591
2.600
330
340
2.600
2.609
2.619
2.628
2.637
2.647
2.656
2.665
2.674
2.684
2.693
340
350
2.693
2.703
2.712
2.721
2.731
2.740
2.749
2.759
2.768
2.777
2.787
350
360
2.787
2.796
2.806
2.815
2.824
2.834
2.843
2.853
2.862
2.871
2.881
360
370
2.881
2.890
2.900
2.909
2.919
2.928
2.938
2.947
2.956
2.966
2.975
370
380
2.975
2.985
2.994
3.004
3.013
3.023
3.032
3.042
3.051
3.061
3.070
380
390
3.070
3.080
3.089
3.099
3.108
3.118
3.127
3.137
3.147
3.156
3.166
390
400
3.166
3.175
3.185
3.194
3.204
3.213
3.223
3.233
3.242
3.252
3.261
400
410
3.261
3.271
3.281
3.290
3.300
3.309
3.319
3.329
3.338
3.348
3.358
410
420
3.358
3.367
3.377
3.387
3.396
3.406
3.415
3.425
3.435
3.444
3.454
420
430
3.454
3.464
3.474
3.483
3.493
3.503
3.512
3.522
3.532
3.541
3.551
430
440
3.551
3.561
3.571
3.580
3.590
3.600
3.609
3.619
3.629
3.639
3.648
440
450
3.648
3.658
3.668
3.678
3.687
3.697
3.707
3.717
3.727
3.736
3.746
450
460
3.746
3.756
3.766
3.776
3.785
3.795
3.805
3.815
3.825
3.834
3.844
460
470
3.844
3.854
3.864
3.874
3.884
3.893
3.903
3.913
3.923
3.933
3.943
470
480
3.943
3.953
3.962
3.972
3.982
3.992
4.002
4.012
4.022
4.032
4.041
480
490
4.041
4.051
4.061
4.071
4.081
4.091
4.101
4.111
4.121
4.131
4.141
490