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Appendices
CM-2201/CM-2202
Appendix G
RTD Tables (°C)
©2018 Nelson Heat Tracing Systems
www.nelsonheaters.com
GA2497 Rev.6
42
Temperature Conversion
Platinum Resistance (240°C to 629°C)
Temperature Coefficient - 0.00385 Ohms/Ohm/OC
340
226.17
401
247.38
462
268.17
523
288.52
584
308.44
280
204.88
341
226.52
402
247.72
463
268.50
524
288.85
585
308.76
281
205.23
342
226.87
403
248.07
464
268.84
525
289.18
586
309.09
282
205.59
343
227.22
404
248.41
465
269.18
526
289.51
587
309.41
283
205.95
344
227.57
405
248.76
466
269.51
527
289.84
588
309.73
284
206.31
345
227.92
406
249.10
467
269.85
528
290.17
589
310.05
285
206.67
346
228.27
407
249.45
468
270.19
529
290.50
286
207.02
347
228.62
408
249.79
469
270.52
590
310.38
287
207.38
348
228.97
409
250.13
530
290.83
591
310.70
288
207.74
349
229.32
470
270.86
531
291.16
592
311.02
289
208.10
410
250.48
471
271.20
532
291.49
593
311.34
350
229.67
411
250.82
472
271.53
533
291.81
594
311.66
290
208.45
351
230.02
412
251.16
473
271.87
534
292.14
595
311.99
291
208.81
352
230.37
413
251.50
474
272.20
535
292.47
596
312.31
292
209.17
353
230.72
414
251.85
475
272.54
536
292.80
597
312.63
293
209.52
354
231.07
415
252.19
476
272.88
537
293.13
598
312.95
294
209.88
355
231.42
416
252.53
477
273.21
538
293.46
599
313.27
295
210.24
356
231.77
417
252.87
478
273.55
539
293.79
296
210.59
357
232.12
418
253.22
479
273.88
600
313.59
297
210.95
358
232.47
419
253.56
540
294.11
601
313.91
298
211.31
359
232.82
480
274.22
541
294.44
602
314.24
299
211.66
420
253.90
481
274.55
542
294.77
603
314.56
360
233.17
421
254.24
482
274.89
543
295.10
604
314.88
300
212.02
361
233.52
422
254.59
483
275.22
544
295.43
605
315.20