铂、铜热电阻校验规程1.0目的规范铂、铜热电阻校准的操作，确保铂、铜热电阻的校准结果真实、可靠。
2.0适用范围本规程适用于-200℃~+850℃整个或部分温度范围使用的工业铂、铜热电阻的校准和使用中检验。
3.0权责工程设备部：负责按本规程执行铂、铜热电阻的校准及校准记录的管理。
4.0定义4.1 热电阻：由一个或多个感温电阻元件组成的，带引线、保护管和接线端子的测温仪器。
4.2 标称电阻值R0：热电阻（或感温元件）在0℃时的期望电阻值。
其阻值通常有10Ω、50Ω、100Ω、500Ω、1000Ω，它由制造商申明并标于热电阻上。
感温元件常以其标称电阻值表征，例如一个Pt100的感温元件，其标称电阻值为100Ω；Cu50的感温元件，其标称电阻值为50Ω。
4.3 温度/电阻表（分度表）：当R0为标称电阻值时，可根据函数关系制成相应的温度/电阻表（分度表）。
铂热电阻标称电阻值为100Ω的分度表见表2。
其他类型铂热电阻的分度表只要将该分度表中的电阻值乘以R0/100Ω即可（此处的R0为其他类型铂热电阻的标称电阻值）。
铜热电阻分度表亦是如此得到。
5.0内容5.1允差：允差等级是与有效温度范围相对应的。
在有效温度范围内，热电阻的电阻值通过分度表查算出的温度t与真实温度的最大偏差不得超过表1给定的允差值。
表1适用于任何标称电阻值的热电阻。
对于特定的热电阻，若其有效温度范围小于该表规定的范围，应给予说明。
表1 热电阻的允差等级和允差值热电阻类型允差等级有效温度范围/℃允差值线绕元件膜式元件PRT A -100~+450 -30~+300 ±0.150℃+0.002|t|B -196~+600 -50~+500 ±0.30℃+0.005|t|C -196~+600 -50~+600 ±0.6℃+0.010|t|CRT - -50~+150 - ±0.30℃+0.006|t| 5.2温度/电阻关系t/℃0 1 2 3 4 5 6 7 8 9电阻值(Ω)-200 18.52-190 -180 -170 -160 -150 22.8327.1031.3435.5439.7222.4026.6730.9135.1239.3121.9726.2430.4934.7038.8921.5425.8230.0734.2838.4721.1125.3929.6433.8638.0520.6824.9729.2233.4437.6420.2524.5428.8033.0237.2219.8224.1128.3732.6036.8019.3823.6827.9532.1836.3818.9523.2527.5231.7635.96-140 -130 -120 -110 -100 43.8848.0052.1156.1960.2643.4647.5951.7055.7959.8543.0547.1851.2955.3859.4442.6346.7750.8854.9759.0442.2246.3650.4754.5658.6341.8045.9450.0654.1558.2341.3945.5349.6553.7557.8240.9745.1249.2453.3457.4140.5644.7048.8352.9357.0140.1444.2948.4252.5256.60-90 -80 -70 -60 -50 64.3068.3372.3376.3380.3163.9067.9271.9375.9379.9163.4967.5271.5375.5379.5163.0967.1271.1375.1379.1162.6866.7270.7374.7378.7262.2866.3170.3374.3378.3261.8865.9169.9373.9377.9261.4765.5169.5373.5377.5261.0765.1169.1373.1377.1260.6664.7068.7372.7376.73-40 -30 -20 -10 -084.2788.2292.1696.09100.0083.8787.8391.7795.6999.6183.4887.4391.3795.3099.2283.0887.0490.9894.9198.8382.6986.6490.5994.5298.4482.2986.2590.1994.1298.0481.8985.8589.8093.7397.6581.5085.4689.4093.3497.2681.1085.0689.0192.9596.8780.7084.6788.6292.5596.480 10 20 30 40 100.00103.90107.79111.67115.54100.39104.29108.18112.06115.93100.78104.68108.57112.45116.31101.17105.07108.96112.83116.70101.56105.46109.35113.22117.08101.95105.85109.73113.61117.47102.34106.24110.12114.00117.86102.73106.63110.51114.38118.24103.12107.02110.90114.77118.63103.51107.40111.29115.15119.0150 60 70 80 90 119.40123.24127.08130.90134.71119.78123.63127.46131.28135.09120.17124.01127.84131.66135.47120.55124.39128.22132.04135.85120.94124.78128.61132.42136.23121.32125.16128.99132.80136.61121.71125.54129.37133.18136.99122.09125.93129.75133.57137.37122.47126.31130.13133.95137.75122.86126.69130.52134.33138.13100 110 120 130 140 138.51142.29146.07149.83153.58138.88142.67146.44150.21153.96139.26143.05146.82150.58154.33139.64143.43147.20150.96154.71140.02143.80147.57151.33155.08140.40144.18147.95151.71155.46140.78144.56148.33152.08155.83141.16144.94148.70152.46156.20141.54145.31149.08152.83156.58141.91145.69149.46153.21156.95150 160 170 180 190 157.33161.05164.77168.48172.17157.70161.43165.14168.85172.54158.07161.80165.51169.22172.91158.45162.17165.89169.59173.28158.82162.54166.26169.96173.65159.19162.91166.63170.33174.02159.56163.29167.00170.70174.38159.94163.66167.37171.07174.75160.31164.03167.74171.43175.12160.68164.40168.11171.80175.49200 210 220 230 240 175.86179.53183.19186.84190.47176.22179.89183.55187.20190.84176.59180.26183.92187.56191.20176.96180.63184.28187.93191.56177.33180.99184.65188.29191.92177.69181.36185.01188.66192.29178.06181.72185.38189.02192.65178.43182.09185.74189.38193.01178.79182.46186.11189.75193.37179.16182.82186.47190.11193.74t/℃0 1 2 3 4 5 6 7 8 9电阻值(Ω)250 260 270 280 290 194.10197.71201.31204.90208.48194.46198.07201.67205.26208.84194.82198.43202.03205.62209.20195.18198.79202.39205.98209.56195.55199.15202.75206.34209.91195.91199.51203.11206.70210.27196.27199.87203.47207.05210.63196.63200.23203.83207.41210.98196.99200.59204.19207.77211.34197.35200.95204.55208.13211.70300 310 320 330 340 212.05215.61219.15222.68226.21212.41215.96219.51223.04226.56212.76216.32219.86223.39226.91213.12216.67220.21223.74227.26213.48217.03220.57224.09227.61213.83217.38220.92224.45227.96214.19217.74221.27224.80228.31214.54218.09221.63225.15228.66214.90218.44221.98225.50229.02215.25218.80222.33225.85229.37350 360 370 380 390 229.72233.21236.70240.18243.64230.07233.56237.05240.52243.99230.42233.91237.40240.87244.33230.77234.26237.74241.22244.68231.12234.61238.09241.56245.02231.47234.96238.44241.91245.37231.82235.31238.79242.26245.71232.17235.66239.13242.60246.06232.52236.00239.48242.95246.40232.87236.35239.83243.29246.75400 410 420 430 440 247.09250.53253.96257.38260.78247.44250.88254.30257.72261.12247.78251.22254.65258.06261.46248.13251.56254.99258.40261.80248.47251.91255.33258.74262.14248.81252.25255.67259.08262.48249.16252.59256.01259.42262.82249.50252.93256.35259.76263.16245.85253.28256.70260.10263.50250.19253.62257.04260.44263.84450 460 470 480 490 264.18267.56270.93274.29277.64264.52267.90271.27274.63277.98264.86268.24271.61274.96278.31265.20268.57271.94275.30278.64265.53268.91272.28275.63278.98265.87269.25272.61275.97279.31266.21269.59272.95276.30279.64266.55269.92273.29276.64279.98266.89270.26273.62276.97280.31267.22270.60273.96277.31280.64500 510 520 530 540 280.98284.30287.62290.92294.21281.31284.63287.95291.25294.54281.64284.97288.28291.58294.86281.98285.30288.61291.91295.19282.31285.63288.94292.24295.52282.64285.96289.27292.56295.85282.97286.29289.60292.89296.18283.31286.62289.93293.22296.50283.64286.85290.26293.55296.83283.97287.29290.59293.88297.16550 560 570 580 590 297.49300.75304.01307.25310.49297.81301.08304.34307.58310.81298.14301.41304.66307.90311.13298.47301.73304.98308.23311.45298.80302.06305.31308.55311.78299.12302.38305.63308.87312.10299.45302.71305.96309.20312.42299.78303.03306.28309.52312.74300.10303.36306.61309.84313.06300.43303.69306.93310.16313.39600 610 620 630 640 313.71316.92320.12323.30326.48314.03317.24320.43323.62326.79314.35317.56320.75323.94327.11314.67317.88321.07324.26327.43314.99318.20321.39324.57327.74315.31318.52321.71324.89328.06315.64318.84322.03325.21328.38315.96319.16322.35325.53328.69316.28319.48322.67325.84329.01316.60319.80322.98326.16329.32650 660 329.64332.79329.96 330.27 330.59 330.90 331.22 331.53 331.85 332.16 332.48t/℃0 1 2 3 4 5 6 7 8 9电阻值(Ω)-50 78.48-40 -30 -20 -10 -082.8087.1191.4195.71100.0082.3786.6890.9895.2899.5781.9486.2590.5594.8599.1481.5185.8290.1294.4298.7181.0785.3989.6993.9998.2880.6484.9689.2693.5697.8580.2184.5288.8393.1397.4279.7884.0688.4092.7097.0079.3583.6687.9792.2796.5778.9283.2387.5491.8496.140 10 20 30 40 100.00104.29108.57112.85117.13100.43104.72109.00113.28117.56100.86105.14109.43113.71117.99101.29105.57109.86114.14118.41101.72106.00110.28114.56118.84102.14106.43110.71114.99119.27102.57106.86111.14115.42119.70103.00107.29111.57115.85120.12103.42107.72112.00116.27120.55103.86108.14112.42116.70120.9850 60 70 80 90 121.41125.68129.96134.24138.52121.84126.11130.39134.67138.95122.26126.54130.82135.09139.37122.69126.97131.24135.52139.80123.12127.40131.67135.95140.23123.55127.82132.10136.38140.66123.97128.25132.53136.81141.09124.40128.68132.96137.23141.52124.83129.11133.38137.66141.94125.26129.53133.81138.09142.37100 110 120 130 140 142.80147.08151.37155.67159.96143.23147.51151.80156.10160.39143.66147.94152.23156.52160.82144.08148.37152.66156.95161.25144.51148.80153.09157.38161.68144.94149.23153.52157.81162.12145.37149.66153.95158.24162.55145.80150.09154.38158.67162.98146.23150.52154.81159.10163.41146.66150.94155.24159.53163.84150 164.275.3外观5.3.1热电阻各部分装配正确、可靠、无缺件，外表涂层应牢固，保护管应完整无损，不得有凹痕、划痕和显著锈蚀。