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Basic values and tolerances for platinum resistance elements

Tolerances of basic values for platinum resistance elements are defined
by IEC 60751 (ITS 90) as follows:



 

 

Basic values according to IEC 60751 Standard
 Tolerance according to IEC 60751 Standard
Class A Class B
Range
Ohms
Ohms / K
Ohms
°C
Ohms
°C
-200
18.52
0.44
± 0.24
± 0.55
± 0.56
± 1.3
-100
60.26
0.41
± 0.14
± 0.35
± 0.32
± 0.8
0
100.00
0.39
± 0.06
± 0.15
± 0.12
± 0.3
100
138.51
0.38
± 0.13
± 0.35
± 0.30
± 0.8
200
175.86
0.37
± 0.20
± 0.55
± 0.48
± 1.3
300
212.05
0.35
± 0.27
± 0.75
± 0.64
± 1.8
400
247.09
0.34
± 0.33
± 0.95
± 0.79
± 2.3
500
280.98
0.33
± 0.38
± 1.15
± 0.93
± 2.8
600
313.71
0.33
± 0.43
± 1.35
± 1.06
± 3.3
700
345.28
0.31
-
-
± 1.17
± 3.8
800
375.70
0.30
-
-
± 1.28
± 4,3
850
390.48
0.29
-
-
± 1.34
± 4.6

 

Basic values for platinum resistance elements according to IEC 60751 (ITS 90)

°C Ohms Ohms/°C   °C Ohms Ohms/°C   °C Ohms Ohms/°C
-200 18.52 0.44   +160 161.05 0.38   +510 284.30 0.33
-190 22.83 0.43   +170 164.77 0.37   +520 287.62 0.33
-180 27.10 0.42   +180 168.48 0.37   +530 290.92 0.33
-170 31.34 0.42   +190 172.17 0.37   +540 294.21 0.33
-160 35.54 0.42   +200 175.86 0.37   +550 297.49 0.33
-150 39.72 0.42   +210 179.53 0.37   +560 300.75 0.32
-140 43.88 0.41   +220 183.19 0.36   +570 304.01 0.32
-130 48.00 0.41   +230 186.84 0.36   +580 307.25 0.32
-120 52.11 0.41   +240 190.47 0.36   +590 310.49 0.32
-110 56.19 0.41   +250 194.10 0.37   +600 313.71 0.33
-100 60.26 0.41   +260 197.71 0.36   +610 316.92 0.32
-90 64.30 0.40   +270 201.31 0.36   +620 320.92 0.32
-80 68.33 0.40   +280 204.90 0.35   +630 323.30 0.31
-70 72.33 0.40   +290 208.48 0.36   +640 326.48 0.31
-60 76.33 0.40   +300 212.05 0.35   +650 329.64 0.31
-50 80.31 0.39   +310 215.61 0.36   +660 332.79 0.31
-40 84.27 0.40   +320 219.15 0.35   +670 335.79 0.32
-30 88.22 0.40   +330 222.68 0.35   +680 339.06 0.31
-20 92.16 0.39   +340 226.21 0.35   +690 342.18 0.31
-10 96.09 0.39   +350 229.72 0.35   +700 345.28 0.31
0 100.00 0.39   +360 233.21 0.35   +710 348.38 0.31
+10 103.90 0.39   +370 236.65 0.35   +720 351.46 0.31
+20 107.79 0.39   +380 240.18 0.34   +730 354.53 0.30
+30 111.67 0.39   +390 243.64 0.34   +740 357.59 0.31
+40 115.54 0.39   +400 247.09 0.34   +750 360.64 0.30
+50 119.40 0.38   +410 250.53 0.34   +760 363.67 0.30
+60 123.24 0.38   +420 253.96 0.34   +770 366.70 0.30
+70 127.08 0.38   +430 257.38 0.34   +780 369.71 0.30
+80 130.90 0.38   +440 260.78 0.34   +790 372.71 0.30
+90 134.71 0.38   +450 264.18 0.34   +800 375.70 0.30
+100 138.51 0.38   +460 267.56 0.34   +810 378.68 0.30
+110 142.29 0.37   +470 270.93 0.34   +820 381.65 0.29
+120 146.07 0.38   +480 274.29 0.33   +830 384.60 0.29
+130 149.83 0.38   +490 277.64 0.34   +840 387.55 0.29
+140 153.58 0.37   +500 280.98 0.33   +850 390.48 0.29
+150 157.33 0.38