PT100热电阻常用计算公式及分度表

  通常热电阻（铂热电阻）产品是由热电阻测温芯片与外保护套管、连接件、接线盒等组成的，热电阻作为测量介质温度的温度传感器可以与显示仪表、记录仪表、控制仪表配套使用，直接测量或控制生产过程中-200℃~600℃范围内的各种介质的温度，热电阻属于非标订制产品，可以根据用户的不同安装、使用等要求进行订制生产，选用的热电阻Pt100芯片为进口芯片，输出信号为阻值信号Ω值，我们常用的热电阻接线有两线制、三线制与四线制，通常以三线制接线方式为主，一般热电阻PT100三线制AB=AC=100Ω时对应温度显示为0℃，温度每升高1℃，电阻阻值大概升高0.385Ω，这样依次类推即可知道我们实际温度与热电阻测量温度的大概偏差，所以一般只要我们操作人员在现场只要通过万用表实际断电拆线后直接测量热电阻接线端子上的电阻值与工艺大概温度判断一下就会知道热电阻的好坏了，要想了解更加准确的温度，就需要通过PT100热电阻分度表对照查询即可：

温度 ℃	0	1	2	3	4	5	6	7	8	9
	电阻值（Ω）
-200	18.52
-190 -180 -170 -160 -150	22.83 27.10 31.34 35.54 39.72	22.40 26.67 30.91 35.12 39.31	21.97 26.24 30.49 34.70 38.89	21.54 25.82 30.07 34.28 38.47	21.11 25.39 29.64 33.86 38.05	20.68 24.97 29.22 33.44 37.64	20.25 24.54 28.80 33.02 37.22	19.82 24.11 28.37 32.60 36.80	19.38 23.68 27.95 32.18 36.38	18.95 23.25 27.52 31.76 35.96
-140 -130 -120 -110 -100	43.88 48.00 52.11 56.19 60.26	43.46 47.59 51.70 55.79 59.85	43.05 47.18 51.29 55.38 59.44	42.63 46.77 50.88 54.97 59.04	42.22 46.36 50.47 54.56 58.63	41.80 45.94 50.06 54.15 58.23	41.39 45.53 49.65 53.75 57.82	40.97 45.12 49.24 53.34 57.41	40.56 44.70 48.83 52.93 57.01	40.14 44.29 48.42 52.52 56.60
-90 -80 -70 -60 -50	64.30 68.33 72.33 76.33 80.31	63.90 67.92 71.93 75.93 79.91	63.49 67.52 71.53 75.53 79.51	63.09 67.12 71.13 75.13 79.11	62.68 66.72 70.73 74.73 78.72	62.28 66.31 70.33 74.33 78.32	61.88 65.91 69.93 73.93 77.92	61.47 65.51 69.53 73.53 77.52	61.07 65.11 69.13 73.13 77.12	60.66 64.70 68.73 72.73 76.73
-40 -30 -20 -10 0	84.27 88.22 92.16 96.09 100.00	83.87 87.83 91.77 95.69 99.61	83.48 87.43 91.37 95.30 99.22	83.08 87.04 90.98 94.91 98.83	82.69 86.64 90.59 94.52 98.44	82.29 86.25 90.19 94.12 98.04	81.89 85.85 89.80 93.73 97.65	81.50 85.46 89.40 93.34 97.26	81.10 85.06 89.01 92.95 96.87	80.70 84.67 88.62 92.55 96.48
0 10 20 30 40	100.00 103.90 107.79 111.67 115.54	100.39 104.29 108.18 112.06 115.93	100.78 104.68 108.57 112.45 116.31	101.17 105.07 108.96 112.83 116.70	101.56 105.46 109.35 113.22 117.08	101.95 105.85 109.73 113.61 117.47	102.34 106.24 110.12 114.00 117.86	102.73 106.63 110.51 114.38 118.24	103.12 107.02 110.90 114.77 118.63	103.51 107.40 111.29 115.15 119.01
50 60 70 80 90	119.40 123.24 127.08 130.90 134.71	119.78 123.63 127.46 131.28 135.09	120.17 124.01 127.84 131.66 135.47	120.55 124.39 128.22 132.04 135.85	120.94 124.78 128.61 132.42 136.23	121.32 125.16 128.99 132.80 136.61	121.71 125.54 129.37 133.18 136.99	122.09 125.93 129.75 133.57 137.37	122.47 126.31 130.13 133.95 137.75	122.86 126.69 130.52 134.33 138.13
100 110 120 130 140	138.51 142.29 146.07 149.83 153.58	138.88 142.67 146.44 150.21 153.96	139.26 143.05 146.82 150.58 154.33	139.64 143.43 147.20 150.96 154.71	140.02 143.80 147.57 151.33 155.08	140.40 144.18 147.95 151.71 155.46	140.78 144.56 148.33 152.08 155.83	141.16 144.94 148.70 152.46 156.20	141.54 145.31 149.08 152.83 156.58	141.91 145.69 149.46 153.21 156.95
150 160 170 180 190	157.33 161.05 164.77 168.48 172.17	157.70 161.43 165.14 168.85 172.54	158.07 161.80 165.51 169.22 172.91	158.45 162.17 165.89 169.59 173.28	158.82 162.54 166.26 169.96 173.65	159.19 162.91 166.63 170.33 174.02	159.56 163.29 167.00 170.70 174.38	159.94 163.66 167.37 171.07 174.75	160.31 164.03 167.74 171.43 175.12	160.68 164.40 168.11 171.80 175.49
200 210 220 230 240	175.86 179.53 183.19 186.84 190.47	176.22 179.89 183.55 187.20 190.84	176.59 180.26 183.92 187.56 191.20	176.96 180.63 184.28 187.93 191.56	177.33 180.99 184.65 188.29 191.92	177.69 181.36 185.01 188.66 192.29	178.06 181.72 185.38 189.02 192.65	178.43 182.09 185.74 189.38 193.01	178.79 182.46 186.11 189.75 193.37	179.16 182.82 186.47 190.11 193.74
250 260 270 280 290	194.10 197.71 201.31 204.90 208.48	194.46 198.07 201.67 205.26 208.84	194.82 198.43 202.03 205.62 209.20	195.18 198.79 202.39 205.98 209.56	195.55 199.15 202.75 206.34 209.91	195.91 199.51 203.11 206.70 210.27	196.27 199.87 203.47 207.05 210.63	196.63 200.23 203.83 207.41 210.98	196.99 200.59 204.19 207.77 211.34	197.35 200.95 204.55 208.13 211.70
300 310 320 330 340	212.05 215.61 219.15 222.68 226.21	212.41 215.96 219.51 223.04 226.56	212.76 216.32 219.86 223.39 226.91	213.12 216.67 220.21 223.74 227.26	213.48 217.03 220.57 224.09 227.61	213.83 217.38 220.92 224.45 227.96	214.19 217.74 221.27 224.80 228.31	214.54 218.09 221.63 225.15 228.66	214.90 218.44 221.98 225.50 229.02	215.25 218.80 222.33 225.85 229.37
350 360 370 380 390	229.72 233.21 236.70 240.18 243.64	230.07 233.56 237.05 240.52 243.99	230.42 233.91 237.40 240.87 244.33	230.77 234.26 237.74 241.22 244.68	231.12 234.61 238.09 241.56 245.02	231.47 234.96 238.44 241.91 245.37	231.82 235.31 238.79 242.26 245.71	232.17 235.66 239.13 242.60 246.06	232.52 236.00 239.48 242.95 246.40	232.87 236.35 239.83 243.29 246.75
400 410 420 430 440	247.09 250.53 253.96 257.38 260.78	247.44 250.88 254.30 257.72 261.12	247.78 251.22 254.65 258.06 261.46	248.13 251.56 254.99 258.40 261.80	248.47 251.91 255.33 258.74 262.14	248.81 252.25 255.67 259.08 262.48	249.16 252.59 256.01 259.42 262.82	249.50 252.93 256.35 259.76 263.16	245.85 253.28 256.70 260.10 263.50	250.19 253.62 257.04 260.44 263.84
450 460 470 480 490	264.18 267.56 270.93 274.29 277.64	264.52 267.90 271.27 274.63 277.98	264.86 268.24 271.61 274.96 278.31	265.20 268.57 271.94 275.30 278.64	265.53 268.91 272.28 275.63 278.98	265.87 269.25 272.61 275.97 279.31	266.21 269.59 272.95 276.30 279.64	266.55 269.92 273.29 276.64 279.98	266.89 270.26 273.62 276.97 280.31	267.22 270.60 273.96 277.31 280.64
500 510 520 530 540	280.98 284.30 287.62 290.92 294.21	281.31 284.63 287.95 291.25 294.54	281.64 284.97 288.28 291.58 294.86	281.98 285.30 288.61 291.91 295.19	282.31 285.63 288.94 292.24 295.52	282.64 285.96 289.27 292.56 295.85	282.97 286.29 289.60 292.89 296.18	283.31 286.62 289.93 293.22 296.50	283.64 286.85 290.26 293.55 296.83	283.97 287.29 290.59 293.88 297.16
550 560 570 580 590	297.49 300.75 304.01 307.25 310.49	297.81 301.08 304.34 307.58 310.81	298.14 301.41 304.66 307.90 311.13	298.47 301.73 304.98 308.23 311.45	298.80 302.06 305.31 308.55 311.78	299.12 302.38 305.63 308.87 312.10	299.45 302.71 305.96 309.20 312.42	299.78 303.03 306.28 309.52 312.74	300.10 303.36 306.61 309.84 313.06	300.43 303.69 306.93 310.16 313.39
600 610 620 630 640	313.71 316.92 320.12 323.30 326.48	314.03 317.24 320.43 323.62 326.79	314.35 317.56 320.75 323.94 327.11	314.67 317.88 321.07 324.26 327.43	314.99 318.20 321.39 324.57 327.74	315.31 318.52 321.71 324.89 328.06	315.64 318.84 322.03 325.21 328.38	315.96 319.16 322.35 325.53 328.69	316.28 319.48 322.67 325.84 329.01	316.60 319.80 322.98 326.16 329.32
650 660	329.64 332.79	329.96	330.27	330.59	330.90	331.22	331.53	331.85	332.16	332.48