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17. TEMPERATURE CONTROL CONVERSION CHART
The temperature sensor (probe) that is supplied with this conveyor oven is an RTD type, which yields an
output based on Ohms of resistance. This particular RTD device has a linear resistance curve that
produces a very predictable amount of resistance that can be converted to degrees Fahrenheit. This
particular device produces a resistance increase of 2 Ohms per every 1 degree F. The baseline value is
approx. 1000 ohms at 32 °F (0°C).
Ohms
°F
Ohms
°F
Ohms
°F
1002
32
1358
204
1714
380
1004
34
1370
210
1722
384
1017
40
1379
214
1734
390
1025
44
1391
220
1742
394
1038
50
1399
224
1753
400
1046
54
1411
230
1761
404
1059
60
1420
234
1773
410
1067
64
1432
240
1781
414
1080
70
1440
244
1793
420
1088
74
1452
250
1801
424
1101
80
1460
254
1813
430
1109
84
1473
260
1821
434
1122
90
1481
264
1832
440
1130
94
1493
270
1844
446
1143
100
1501
274
1852
450
1151
104
1513
280
1860
454
1164
110
1521
284
1872
460
1172
114
1533
290
1879
464
1184
120
1541
294
1891
470
1193
124
1554
300
1899
474
1205
130
1562
304
1911
480
1214
134
1574
310
1918
484
1226
140
1582
314
1930
490
1234
144
1594
320
1938
494
1247
150
1602
324
1950
500
1255
154
1614
330
1957
504
1267
160
1622
334
1969
510
1276
164
1634
340
1977
514
1288
170
1642
344
1988
520
1286
174
1654
350
1996
524
1309
180
1662
354
2008
530
1317
184
1674
360
2027
540
1329
190
1682
364
2035
544
1338
194
1694
370
2046
550
1350
200
1702
374