ITS-90 Table for type B thermocouple °C 0 1 2 3 4 5 6 7 8 9 10 Thermoelectric Voltage in mV 0 0.000 0.000 0.000 -0.001 -0.001 -0.001 -0.001 -0.001 -0.002 -0.002 -0.002 10 -0.002 -0.002 -0.002 -0.002 -0.002 -0.002 -0.002 -0.002 -0.003 -0.003 -0.003 20 -0.003 -0.003 -0.003 -0.003 -0.003 -0.002 -0.002 -0.002 -0.002 -0.002 -0.002 30 -0.002 -0.002 -0.002 -0.002 -0.002 -0.001 -0.001 -0.001 -0.001 -0.001 0.000 40 0.000 0.000 0.000 0.000 0.000 0.001 0.001 0.001 0.002 0.002 0.002 50 0.002 0.003 0.003 0.003 0.004 0.004 0.004 0.005 0.005 0.006 0.006 60 0.006 0.007 0.007 0.008 0.008 0.009 0.009 0.010 0.010 0.011 0.011 70 0.011 0.012 0.012 0.013 0.014 0.014 0.015 0.015 0.016 0.017 0.017 80 0.017 0.018 0.019 0.020 0.020 0.021 0.022 0.022 0.023 0.024 0.025 90 0.025 0.026 0.026 0.027 0.028 0.029 0.030 0.031 0.031 0.032 0.033 100 0.033 0.034 0.035 0.036 0.037 0.038 0.039 0.040 0.041 0.042 0.043 110 0.043 0.044 0.045 0.046 0.047 0.048 0.049 0.050 0.051 0.052 0.053 120 0.053 0.055 0.056 0.057 0.058 0.059 0.060 0.062 0.063 0.064 0.065 130 0.065 0.066 0.068 0.069 0.070 0.072 0.073 0.074 0.075 0.077 0.078 140 0.078 0.079 0.081 0.082 0.084 0.085 0.086 0.088 0.089 0.091 0.092 150 0.092 0.094 0.095 0.096 0.098 0.099 0.101 0.102 0.104 0.106 0.107 160 0.107 0.109 0.110 0.112 0.113 0.115 0.117 0.118 0.120 0.122 0.123 170 0.123 0.125 0.127 0.128 0.130 0.132 0.134 0.135 0.137 0.139 0.141 180 0.141 0.142 0.144 0.146 0.148 0.150 0.151 0.153 0.155 0.157 0.159 190 0.159 0.161 0.163 0.165 0.166 0.168 0.170 0.172 0.174 0.176 0.178 200 0.178 0.180 0.182 0.184 0.186 0.188 0.190 0.192 0.195 0.197 0.199 210 0.199 0.201 0.203 0.205 0.207 0.209 0.212 0.214 0.216 0.218 0.220 220 0.220 0.222 0.225 0.227 0.229 0.231 0.234 0.236 0.238 0.241 0.243 230 0.243 0.245 0.248 0.250 0.252 0.255 0.257 0.259 0.262 0.264 0.267 240 0.267 0.269 0.271 0.274 0.276 0.279 0.281 0.284 0.286 0.289 0.291 250 0.291 0.294 0.296 0.299 0.301 0.304 0.307 0.309 0.312 0.314 0.317 260 0.317 0.320 0.322 0.325 0.328 0.330 0.333 0.336 0.338 0.341 0.344 270 0.344 0.347 0.349 0.352 0.355 0.358 0.360 0.363 0.366 0.369 0.372 280 0.372 0.375 0.377 0.380 0.383 0.386 0.389 0.392 0.395 0.398 0.401 290 0.401 0.404 0.407 0.410 0.413 0.416 0.419 0.422 0.425 0.428 0.431 300 0.431 0.434 0.437 0.440 0.443 0.446 0.449 0.452 0.455 0.458 0.462 310 0.462 0.465 0.468 0.471 0.474 0.478 0.481 0.484 0.487 0.490 0.494 320 0.494 0.497 0.500 0.503 0.507 0.510 0.513 0.517 0.520 0.523 0.527 330 0.527 0.530 0.533 0.537 0.540 0.544 0.547 0.550 0.554 0.557 0.561 340 0.561 0.564 0.568 0.571 0.575 0.578 0.582 0.585 0.589 0.592 0.596 350 0.596 0.599 0.603 0.607 0.610 0.614 0.617 0.621 0.625 0.628 0.632 360 0.632 0.636 0.639 0.643 0.647 0.650 0.654 0.658 0.662 0.665 0.669 370 0.669 0.673 0.677 0.680 0.684 0.688 0.692 0.696 0.700 0.703 0.707 380 0.707 0.711 0.715 0.719 0.723 0.727 0.731 0.735 0.738 0.742 0.746 390 0.746 0.750 0.754 0.758 0.762 0.766 0.770 0.774 0.778 0.782 0.787 400 0.787 0.791 0.795 0.799 0.803 0.807 0.811 0.815 0.819 0.824 0.828 410 0.828 0.832 0.836 0.840 0.844 0.849 0.853 0.857 0.861 0.866 0.870 420 0.870 0.874 0.878 0.883 0.887 0.891 0.896 0.900 0.904 0.909 0.913 430 0.913 0.917 0.922 0.926 0.930 0.935 0.939 0.944 0.948 0.953 0.957 440 0.957 0.961 0.966 0.970 0.975 0.979 0.984 0.988 0.993 0.997 1.002 450 1.002 1.007 1.011 1.016 1.020 1.025 1.030 1.034 1.039 1.043 1.048 460 1.048 1.053 1.057 1.062 1.067 1.071 1.076 1.081 1.086 1.090 1.095 470 1.095 1.100 1.105 1.109 1.114 1.119 1.124 1.129 1.133 1.138 1.143 480 1.143 1.148 1.153 1.158 1.163 1.167 1.172 1.177 1.182 1.187 1.192 490 1.192 1.197 1.202 1.207 1.212 1.217 1.222 1.227 1.232 1.237 1.242 °C 0 1 2 3 4 5 6 7 8 9 10 ITS-90 Table for type B thermocouple °C 0 1 2 3 4 5 6 7 8 9 10 Thermoelectric Voltage in mV 500 1.242 1.247 1.252 1.257 1.262 1.267 1.272 1.277 1.282 1.288 1.293 510 1.293 1.298 1.303 1.308 1.313 1.318 1.324 1.329 1.334 1.339 1.344 520 1.344 1.350 1.355 1.360 1.365 1.371 1.376 1.381 1.387 1.392 1.397 530 1.397 1.402 1.408 1.413 1.418 1.424 1.429 1.435 1.440 1.445 1.451 540 1.451 1.456 1.462 1.467 1.472 1.478 1.483 1.489 1.494 1.500 1.505 550 1.505 1.511 1.516 1.522 1.527 1.533 1.539 1.544 1.550 1.555 1.561 560 1.561 1.566 1.572 1.578 1.583 1.589 1.595 1.600 1.606 1.612 1.617 570 1.617 1.623 1.629 1.634 1.640 1.646 1.652 1.657 1.663 1.669 1.675 580 1.675 1.680 1.686 1.692 1.698 1.704 1.709 1.715 1.721 1.727 1.733 590 1.733 1.739 1.745 1.750 1.756 1.762 1.768 1.774 1.780 1.786 1.792 600 1.792 1.798 1.804 1.810 1.816 1.822 1.828 1.834 1.840 1.846 1.852 610 1.852 1.858 1.864 1.870 1.876 1.882 1.888 1.894 1.901 1.907 1.913 620 1.913 1.919 1.925 1.931 1.937 1.944 1.950 1.956 1.962 1.968 1.975 630 1.975 1.981 1.987 1.993 1.999 2.006 2.012 2.018 2.025 2.031 2.037 640 2.037 2.043 2.050 2.056 2.062 2.069 2.075 2.082 2.088 2.094 2.101 650 2.101 2.107 2.113 2.120 2.126 2.133 2.139 2.146 2.152 2.158 2.165 660 2.165 2.171 2.178 2.184 2.191 2.197 2.204 2.210 2.217 2.224 2.230 670 2.230 2.237 2.243 2.250 2.256 2.263 2.270 2.276 2.283 2.289 2.296 680 2.296 2.303 2.309 2.316 2.323 2.329 2.336 2.343 2.350 2.356 2.363 690 2.363 2.370 2.376 2.383 2.390 2.397 2.403 2.410 2.417 2.424 2.431 700 2.431 2.437 2.444 2.451 2.458 2.465 2.472 2.479 2.485 2.492 2.499 710 2.499 2.506 2.513 2.520 2.527 2.534 2.541 2.548 2.555 2.562 2.569 720 2.569 2.576 2.583 2.590 2.597 2.604 2.611 2.618 2.625 2.632 2.639 730 2.639 2.646 2.653 2.660 2.667 2.674 2.681 2.688 2.696 2.703 2.710 740 2.710 2.717 2.724 2.731 2.738 2.746 2.753 2.760 2.767 2.775 2.782 750 2.782 2.789 2.796 2.803 2.811 2.818 2.825 2.833 2.840 2.847 2.854 760 2.854 2.862 2.869 2.876 2.884 2.891 2.898 2.906 2.913 2.921 2.928 770 2.928 2.935 2.943 2.950 2.958 2.965 2.973 2.980 2.987 2.995 3.002 780 3.002 3.010 3.017 3.025 3.032 3.040 3.047 3.055 3.062 3.070 3.078 790 3.078 3.085 3.093 3.100 3.108 3.116 3.123 3.131 3.138 3.146 3.154 800 3.154 3.161 3.169 3.177 3.184 3.192 3.200 3.207 3.215 3.223 3.230 810 3.230 3.238 3.246 3.254 3.261 3.269 3.277 3.285 3.292 3.300 3.308 820 3.308 3.316 3.324 3.331 3.339 3.347 3.355 3.363 3.371 3.379 3.386 830 3.386 3.394 3.402 3.410 3.418 3.426 3.434 3.442 3.450 3.458 3.466 840 3.466 3.474 3.482 3.490 3.498 3.506 3.514 3.522 3.530 3.538 3.546 850 3.546 3.554 3.562 3.570 3.578 3.586 3.594 3.602 3.610 3.618 3.626 860 3.626 3.634 3.643 3.651 3.659 3.667 3.675 3.683 3.692 3.700 3.708 870 3.708 3.716 3.724 3.732 3.741 3.749 3.757 3.765 3.774 3.782 3.790 880 3.790 3.798 3.807 3.815 3.823 3.832 3.840 3.848 3.857 3.865 3.873 890 3.873 3.882 3.890 3.898 3.907 3.915 3.923 3.932 3.940 3.949 3.957 900 3.957 3.965 3.974 3.982 3.991 3.999 4.008 4.016 4.024 4.033 4.041 910 4.041 4.050 4.058 4.067 4.075 4.084 4.093 4.101 4.110 4.118 4.127 920 4.127 4.135 4.144 4.152 4.161 4.170 4.178 4.187 4.195 4.204 4.213 930 4.213 4.221 4.230 4.239 4.247 4.256 4.265 4.273 4.282 4.291 4.299 940 4.299 4.308 4.317 4.326 4.334 4.343 4.352 4.360 4.369 4.378 4.387 950 4.387 4.396 4.404 4.413 4.422 4.431 4.440 4.448 4.457 4.466 4.475 960 4.475 4.484 4.493 4.501 4.510 4.519 4.528 4.537 4.546 4.555 4.564 970 4.564 4.573 4.582 4.591 4.599 4.608 4.617 4.626 4.635 4.644 4.653 980 4.653 4.662 4.671 4.680 4.689 4.698 4.707 4.716 4.725 4.734 4.743 990 4.743 4.753 4.762 4.771 4.780 4.789 4.798 4.807 4.816 4.825 4.834 °C 0 1 2 3 4 5 6 7 8 9 10 ITS-90 Table for type B thermocouple °C 0 1 2 3 4 5 6 7 8 9 10 Thermoelectric Voltage in mV 1000 4.834 4.843 4.853 4.862 4.871 4.880 4.889 4.898 4.908 4.917 4.926 1010 4.926 4.935 4.944 4.954 4.963 4.972 4.981 4.990 5.000 5.009 5.018 1020 5.018 5.027 5.037 5.046 5.055 5.065 5.074 5.083 5.092 5.102 5.111 1030 5.111 5.120 5.130 5.139 5.148 5.158 5.167 5.176 5.186 5.195 5.205 1040 5.205 5.214 5.223 5.233 5.242 5.252 5.261 5.270 5.280 5.289 5.299 1050 5.299 5.308 5.318 5.327 5.337 5.346 5.356 5.365 5.375 5.384 5.394 1060 5.394 5.403 5.413 5.422 5.432 5.441 5.451 5.460 5.470 5.480 5.489 1070 5.489 5.499 5.508 5.518 5.528 5.537 5.547 5.556 5.566 5.576 5.585 1080 5.585 5.595 5.605 5.614 5.624 5.634 5.643 5.653 5.663 5.672 5.682 1090 5.682 5.692 5.702 5.711 5.721 5.731 5.740 5.750 5.760 5.770 5.780 1100 5.780 5.789 5.799 5.809 5.819 5.828 5.838 5.848 5.858 5.868 5.878 1110 5.878 5.887 5.897 5.907 5.917 5.927 5.937 5.947 5.956 5.966 5.976 1120 5.976 5.986 5.996 6.006 6.016 6.026 6.036 6.046 6.055 6.065 6.075 1130 6.075 6.085 6.095 6.105 6.115 6.125 6.135 6.145 6.155 6.165 6.175 1140 6.175 6.185 6.195 6.205 6.215 6.225 6.235 6.245 6.256 6.266 6.276 1150 6.276 6.286 6.296 6.306 6.316 6.326 6.336 6.346 6.356 6.367 6.377 1160 6.377 6.387 6.397 6.407 6.417 6.427 6.438 6.448 6.458 6.468 6.478 1170 6.478 6.488 6.499 6.509 6.519 6.529 6.539 6.550 6.560 6.570 6.580 1180 6.580 6.591 6.601 6.611 6.621 6.632 6.642 6.652 6.663 6.673 6.683 1190 6.683 6.693 6.704 6.714 6.724 6.735 6.745 6.755 6.766 6.776 6.786 1200 6.786 6.797 6.807 6.818 6.828 6.838 6.849 6.859 6.869 6.880 6.890 1210 6.890 6.901 6.911 6.922 6.932 6.942 6.953 6.963 6.974 6.984 6.995 1220 6.995 7.005 7.016 7.026 7.037 7.047 7.058 7.068 7.079 7.089 7.100 1230 7.100 7.110 7.121 7.131 7.142 7.152 7.163 7.173 7.184 7.194 7.205 1240 7.205 7.216 7.226 7.237 7.247 7.258 7.269 7.279 7.290 7.300 7.311 1250 7.311 7.322 7.332 7.343 7.353 7.364 7.375 7.385 7.396 7.407 7.417 1260 7.417 7.428 7.439 7.449 7.460 7.471 7.482 7.492 7.503 7.514 7.524 1270 7.524 7.535 7.546 7.557 7.567 7.578 7.589 7.600 7.610 7.621 7.632 1280 7.632 7.643 7.653 7.664 7.675 7.686 7.697 7.707 7.718 7.729 7.740 1290 7.740 7.751 7.761 7.772 7.783 7.794 7.805 7.816 7.827 7.837 7.848 1300 7.848 7.859 7.870 7.881 7.892 7.903 7.914 7.924 7.935 7.946 7.957 1310 7.957 7.968 7.979 7.990 8.001 8.012 8.023 8.034 8.045 8.056 8.066 1320 8.066 8.077 8.088 8.099 8.110 8.121 8.132 8.143 8.154 8.165 8.176 1330 8.176 8.187 8.198 8.209 8.220 8.231 8.242 8.253 8.264 8.275 8.286 1340 8.286 8.298 8.309 8.320 8.331 8.342 8.353 8.364 8.375 8.386 8.397 1350 8.397 8.408 8.419 8.430 8.441 8.453 8.464 8.475 8.486 8.497 8.508 1360 8.508 8.519 8.530 8.542 8.553 8.564 8.575 8.586 8.597 8.608 8.620 1370 8.620 8.631 8.642 8.653 8.664 8.675 8.687 8.698 8.709 8.720 8.731 1380 8.731 8.743 8.754 8.765 8.776 8.787 8.799 8.810 8.821 8.832 8.844 1390 8.844 8.855 8.866 8.877 8.889 8.900 8.911 8.922 8.934 8.945 8.956 1400 8.956 8.967 8.979 8.990 9.001 9.013 9.024 9.035 9.047 9.058 9.069 1410 9.069 9.080 9.092 9.103 9.114 9.126 9.137 9.148 9.160 9.171 9.182 1420 9.182 9.194 9.205 9.216 9.228 9.239 9.251 9.262 9.273 9.285 9.296 1430 9.296 9.307 9.319 9.330 9.342 9.353 9.364 9.376 9.387 9.398 9.410 1440 9.410 9.421 9.433 9.444 9.456 9.467 9.478 9.490 9.501 9.513 9.524 1450 9.524 9.536 9.547 9.558 9.570 9.581 9.593 9.604 9.616 9.627 9.639 1460 9.639 9.650 9.662 9.673 9.684 9.696 9.707 9.719 9.730 9.742 9.753 1470 9.753 9.765 9.776 9.788 9.799 9.811 9.822 9.834 9.845 9.857 9.868 1480 9.868 9.880 9.891 9.903 9.914 9.926 9.937 9.949 9.961 9.972 9.984 1490 9.984 9.995 10.007 10.018 10.030 10.041 10.053 10.064 10.076 10.088 10.099 °C 0 1 2 3 4 5 6 7 8 9 10 ITS-90 Table for type B thermocouple °C 0 1 2 3 4 5 6 7 8 9 10 Thermoelectric Voltage in mV 1500 10.099 10.111 10.122 10.134 10.145 10.157 10.168 10.180 10.192 10.203 10.215 1510 10.215 10.226 10.238 10.249 10.261 10.273 10.284 10.296 10.307 10.319 10.331 1520 10.331 10.342 10.354 10.365 10.377 10.389 10.400 10.412 10.423 10.435 10.447 1530 10.447 10.458 10.470 10.482 10.493 10.505 10.516 10.528 10.540 10.551 10.563 1540 10.563 10.575 10.586 10.598 10.609 10.621 10.633 10.644 10.656 10.668 10.679 1550 10.679 10.691 10.703 10.714 10.726 10.738 10.749 10.761 10.773 10.784 10.796 1560 10.796 10.808 10.819 10.831 10.843 10.854 10.866 10.877 10.889 10.901 10.913 1570 10.913 10.924 10.936 10.948 10.959 10.971 10.983 10.994 11.006 11.018 11.029 1580 11.029 11.041 11.053 11.064 11.076 11.088 11.099 11.111 11.123 11.134 11.146 1590 11.146 11.158 11.169 11.181 11.193 11.205 11.216 11.228 11.240 11.251 11.263 1600 11.263 11.275 11.286 11.298 11.310 11.321 11.333 11.345 11.357 11.368 11.380 1610 11.380 11.392 11.403 11.415 11.427 11.438 11.450 11.462 11.474 11.485 11.497 1620 11.497 11.509 11.520 11.532 11.544 11.555 11.567 11.579 11.591 11.602 11.614 1630 11.614 11.626 11.637 11.649 11.661 11.673 11.684 11.696 11.708 11.719 11.731 1640 11.731 11.743 11.754 11.766 11.778 11.790 11.801 11.813 11.825 11.836 11.848 1650 11.848 11.860 11.871 11.883 11.895 11.907 11.918 11.930 11.942 11.953 11.965 1660 11.965 11.977 11.988 12.000 12.012 12.024 12.035 12.047 12.059 12.070 12.082 1670 12.082 12.094 12.105 12.117 12.129 12.141 12.152 12.164 12.176 12.187 12.199 1680 12.199 12.211 12.222 12.234 12.246 12.257 12.269 12.281 12.292 12.304 12.316 1690 12.316 12.327 12.339 12.351 12.363 12.374 12.386 12.398 12.409 12.421 12.433 1700 12.433 12.444 12.456 12.468 12.479 12.491 12.503 12.514 12.526 12.538 12.549 1710 12.549 12.561 12.572 12.584 12.596 12.607 12.619 12.631 12.642 12.654 12.666 1720 12.666 12.677 12.689 12.701 12.712 12.724 12.736 12.747 12.759 12.770 12.782 1730 12.782 12.794 12.805 12.817 12.829 12.840 12.852 12.863 12.875 12.887 12.898 1740 12.898 12.910 12.921 12.933 12.945 12.956 12.968 12.980 12.991 13.003 13.014 1750 13.014 13.026 13.037 13.049 13.061 13.072 13.084 13.095 13.107 13.119 13.130 1760 13.130 13.142 13.153 13.165 13.176 13.188 13.200 13.211 13.223 13.234 13.246 1770 13.246 13.257 13.269 13.280 13.292 13.304 13.315 13.327 13.338 13.350 13.361 1780 13.361 13.373 13.384 13.396 13.407 13.419 13.430 13.442 13.453 13.465 13.476 1790 13.476 13.488 13.499 13.511 13.522 13.534 13.545 13.557 13.568 13.580 13.591 1800 13.591 13.603 13.614 13.626 13.637 13.649 13.660 13.672 13.683 13.694 13.706 1810 13.706 13.717 13.729 13.740 13.752 13.763 13.775 13.786 13.797 13.809 13.820 1820 13.820 °C 0 1 2 3 4 5 6 7 8 9 10 ************************************ * This section contains coefficients for type B thermocouples for * the two subranges of temperature listed below. The coefficients * are in units of °C and mV and are listed in the order of constant * term up to the highest order. The equation is of the form * E = sum(i=0 to n) c_i t^i. * * Temperature Range (°C) * 0.000 to 630.615 * 630.615 to 1820.000 ************************************ name: reference function on ITS-90 type: B temperature units: °C emf units: mV range: 0.000, 630.615, 6 0.000000000000E+00 -0.246508183460E-03 0.590404211710E-05 -0.132579316360E-08 0.156682919010E-11 -0.169445292400E-14 0.629903470940E-18 range: 630.615, 1820.000, 8 -0.389381686210E+01 0.285717474700E-01 -0.848851047850E-04 0.157852801640E-06 -0.168353448640E-09 0.111097940130E-12 -0.445154310330E-16 0.989756408210E-20 -0.937913302890E-24 ************************************ * This section contains coefficients of approximate inverse * functions for type B thermocouples for the subranges of * temperature and voltage listed below. The range of errors of * the approximate inverse function for each subrange is also given. * The coefficients are in units of °C and mV and are listed in * the order of constant term up to the highest order. * The equation is of the form t_90 = d_0 + d_1*E + d_2*E^2 + ... * + d_n*E^n, * where E is in mV and t_90 is in °C. * * Temperature Voltage Error * range range range * (°C) (mV) (° C) * 250. to 700. 0.291 to 2.431 -0.02 to 0.03 * 700. to 1800. 2.431 to 13.820 -0.01 to 0.02 ******************************************************** Inverse coefficients for type B: Temperature 250. 700. Range: 700. 1820. Voltage 0.291 2.431 Range: 2.431 13.820 9.8423321E+01 2.1315071E+02 6.9971500E+02 2.8510504E+02 -8.4765304E+02 -5.2742887E+01 1.0052644E+03 9.9160804E+00 -8.3345952E+02 -1.2965303E+00 4.5508542E+02 1.1195870E-01 -1.5523037E+02 -6.0625199E-03 2.9886750E+01 1.8661696E-04 -2.4742860E+00 -2.4878585E-06 Error -0.02 -0.01 Range: 0.03 0.02