°F Nickel-Chromium
vs.
Nickel-Aluminum
+
–
Extension
Grade
Thermoelectric Voltage in Millivolts
ANSI color code
Revised Thermocouple
Reference Tables
IEC color code
MAXIMUM TEMPERATURE RANGE
Thermocouple Grade
– 328 to 2282°F
– 200 to 1250°C
Extension Grade
32 to 392°F
0 to 200°C
LIMITS OF ERROR
(whichever is greater)
Standard: 2.2°C or 0.75% Above 0°C
2.2°C or 2.0% Below 0°C
Special: 1.1°C or 0.4%
COMMENTS, BARE WIRE ENVIRONMENT:
Clean Oxidizing and Inert; Limited Use in
Vacuum or Reducing; Wide Temperature
Range; Most Popular Calibration
TEMPERATURE IN DEGREES °F
REFERENCE JUNCTION AT 32°F
TYPE
Reference
Tables
N.I.S.T.
Monograph 175
Revised to
ITS‑90
K
°F
-10-9-8-7-6-5-4-3-2-1 0 °F °F012345678910°F
-450
-6.458
-6.457
-6.457
-6.456
-6.456
-450
-440 -6.456-6.455-6.454-6.454-6.453-6.452-6.451-6.450-6.449-6.448-6.446 -440
-430 -6.446-6.445-6.444-6.443-6.441-6.440-6.438-6.436-6.435-6.433-6.431 -430
-420 -6.431-6.429-6.427-6.425-6.423-6.421-6.419-6.416-6.414-6.411-6.409 -420
-410 -6.409-6.406-6.404-6.401-6.398-6.395-6.392-6.389-6.386-6.383-6.380 -410
-400 -6.380-6.377-6.373-6.370-6.366-6.363-6.359-6.355-6.352-6.348-6.344 -400
-390 -6.344-6.340-6.336-6.332-6.328-6.323-6.319-6.315-6.310-6.306-6.301 -390
-380 -6.301-6.296-6.292-6.287-6.282-6.277-6.272-6.267-6.262-6.257-6.251 -380
-370 -6.251-6.246-6.241-6.235-6.230-6.224-6.218-6.213-6.207-6.201-6.195 -370
-360 -6.195-6.189-6.183-6.177-6.171-6.165-6.158-6.152-6.146-6.139-6.133 -360
-350 -6.133-6.126-6.119-6.113-6.106-6.099-6.092-6.085-6.078-6.071-6.064 -350
-340 -6.064-6.057-6.049-6.042-6.035-6.027-6.020-6.012-6.004-5.997-5.989 -340
-330 -5.989-5.981-5.973-5.965-5.957-5.949-5.941-5.933-5.925-5.917-5.908 -330
-320 -5.908-5.900-5.891-5.883-5.874-5.866-5.857-5.848-5.840-5.831-5.822 -320
-310 -5.822-5.813-5.804-5.795-5.786-5.776-5.767-5.758-5.749-5.739-5.730 -310
-300 -5.730-5.720-5.711-5.701-5.691-5.682-5.672-5.662-5.652-5.642-5.632 -300
-290 -5.632-5.622-5.612-5.602-5.592-5.581-5.571-5.561-5.550-5.540-5.529 -290
-280 -5.529-5.519-5.508-5.497-5.487-5.476-5.465-5.454-5.443-5.432-5.421 -280
-270 -5.421-5.410-5.399-5.388-5.377-5.365-5.354-5.343-5.331-5.320-5.308 -270
-260 -5.308-5.296-5.285-5.273-5.261-5.250-5.238-5.226-5.214-5.202-5.190 -260
-250 -5.190-5.178-5.166-5.153-5.141-5.129-5.117-5.104-5.092-5.079-5.067 -250
-240 -5.067-5.054-5.042-5.029-5.016-5.003-4.991-4.978-4.965-4.952-4.939 -240
-230 -4.939-4.926-4.913-4.900-4.886-4.873-4.860-4.847-4.833-4.820-4.806 -230
-220 -4.806-4.793-4.779-4.766-4.752-4.738-4.724-4.711-4.697-4.683-4.669 -220
-210 -4.669-4.655-4.641-4.627-4.613-4.599-4.584-4.570-4.556-4.542-4.527 -210
-200 -4.527-4.513-4.498-4.484-4.469-4.455-4.440-4.425-4.411-4.396-4.381 -200
-190 -4.381-4.366-4.351-4.336-4.321-4.306-4.291-4.276-4.261-4.246-4.231 -190
-180 -4.231-4.215-4.200-4.185-4.169-4.154-4.138-4.123-4.107-4.091-4.076 -180
-170 -4.076-4.060-4.044-4.029-4.013-3.997-3.981-3.965-3.949-3.933-3.917 -170
-160 -3.917-3.901-3.885-3.869-3.852-3.836-3.820-3.803-3.787-3.771-3.754 -160
-150 -3.754-3.738-3.721-3.705-3.688-3.671-3.655-3.638-3.621-3.604-3.587 -150
-140 -3.587-3.571-3.554-3.537-3.520-3.503-3.486-3.468-3.451-3.434-3.417 -140
-130 -3.417-3.400-3.382-3.365-3.348-3.330-3.313-3.295-3.278-3.260-3.243 -130
-120 -3.243-3.225-3.207-3.190-3.172-3.154-3.136-3.119-3.101-3.083-3.065 -120
-110 -3.065-3.047-3.029-3.011-2.993-2.975-2.957-2.938-2.920-2.902-2.884 -110
-100 -2.884-2.865-2.847-2.829-2.810-2.792-2.773-2.755-2.736-2.718-2.699 -100
-90 -2.699-2.680-2.662-2.643-2.624-2.605-2.587-2.568-2.549-2.530-2.511 -90
-80 -2.511-2.492-2.473-2.454-2.435-2.416-2.397-2.378-2.359-2.339-2.320 -80
-70 -2.320-2.301-2.282-2.262-2.243-2.223-2.204-2.185-2.165-2.146-2.126 -70
-60 -2.126-2.106-2.087-2.067-2.048-2.028-2.008-1.988-1.969-1.949-1.929 -60
-50 -1.929-1.909-1.889-1.869-1.850-1.830-1.810-1.790-1.770-1.749-1.729 -50
-40 -1.729-1.709-1.689-1.669-1.649-1.628-1.608-1.588-1.568-1.547-1.527 -40
-30 -1.527-1.507-1.486-1.466-1.445-1.425-1.404-1.384-1.363-1.343-1.322 -30
-20 -1.322-1.301-1.281-1.260-1.239-1.218-1.198-1.177-1.156-1.135-1.114 -20
-10 -1.114-1.094-1.073-1.052-1.031-1.010-0.989-0.968-0.947-0.926-0.905 -10
0 -0.905-0.883-0.862-0.841-0.820-0.799-0.778-0.756-0.735-0.714-0.692 0
0 -0.692-0.671-0.650-0.628-0.607-0.586-0.564-0.543-0.521-0.500-0.478
10 -0.478-0.457-0.435-0.413-0.392-0.370-0.349-0.327-0.305-0.284-0.262
20 -0.262-0.240-0.218-0.197-0.175-0.153-0.131-0.109-0.088-0.066-0.044
30-0.044-0.0220.0000.0220.0440.0660.0880.1100.1320.1540.176
40 0.1760.1980.2200.2420.2640.2860.3080.3300.3530.3750.397
50 0.3970.4190.4410.4630.4860.5080.5300.5520.5750.5970.619
60 0.6190.6420.6640.6860.7090.7310.7530.7760.7980.8210.843
70 0.8430.8650.8880.9100.9330.9550.9781.0001.0231.0451.068
80 1.0681.0901.1131.1361.1581.1811.2031.2261.2491.2711.294
90 1.2941.3161.3391.3621.3841.4071.4301.4531.4751.4981.521
0
10
20
30
40
50
60
70
80
90
100 1.5211.5431.5661.5891.6121.6351.6571.6801.7031.7261.749 100
110 1.7491.7711.7941.8171.8401.8631.8861.9091.9311.9541.977 110
120 1.9772.0002.0232.0462.0692.0922.1152.1382.1612.1842.207 120
130 2.2072.2302.2532.2762.2982.3212.3442.3672.3902.4132.436 130
140 2.4362.4592.4832.5062.5292.5522.5752.5982.6212.6442.667 140
150 2.6672.6902.7132.7362.7592.7822.8052.8282.8512.8742.897 150
160 2.8972.9202.9442.9672.9903.0133.0363.0593.0823.1053.128 160
170 3.1283.1513.1743.1973.2203.2443.2673.2903.3133.3363.359 170
180 3.3593.3823.4053.4283.4513.4743.4973.5203.5443.5673.590 180
190 3.5903.6133.6363.6593.6823.7053.7283.7513.7743.7973.820 190
200 3.8203.8433.8663.8893.9123.9353.9583.9814.0044.0274.050 200
210 4.0504.0734.0964.1194.1424.1654.1884.2114.2344.2574.280 210
220 4.2804.3034.3264.3494.3724.3954.4174.4404.4634.4864.509 220
230 4.5094.5324.5554.5784.6014.6234.6464.6694.6924.7154.738 230
240 4.7384.7604.7834.8064.8294.8524.8744.8974.9204.9434.965 240
250 4.9654.9885.0115.0345.0565.0795.1025.1245.1475.1705.192 250
260 5.1925.2155.2385.2605.2835.3065.3285.3515.3745.3965.419 260
270 5.4195.4415.4645.4875.5095.5325.5545.5775.5995.6225.644 270
280 5.6445.6675.6905.7125.7355.7575.7795.8025.8245.8475.869 280
290 5.8695.8925.9145.9375.9595.9826.0046.0266.0496.0716.094 290
300 6.0946.1166.1386.1616.1836.2056.2286.2506.2726.2956.317 300
310 6.3176.3396.3626.3846.4066.4296.4516.4736.4966.5186.540 310
320 6.5406.5626.5856.6076.6296.6526.6746.6966.7186.7416.763 320
330 6.7636.7856.8076.8296.8526.8746.8966.9186.9416.9636.985 330
340 6.9857.0077.0297.0527.0747.0967.1187.1407.1637.1857.207 340
350 7.2077.2297.2517.2737.2967.3187.3407.3627.3847.4077.429 350
360 7.4297.4517.4737.4957.5177.5407.5627.5847.6067.6287.650 360
370 7.6507.6737.6957.7177.7397.7617.7837.8067.8287.8507.872 370
380 7.8727.8947.9177.9397.9617.9838.0058.0278.0508.0728.094 380
390 8.0948.1168.1388.1618.1838.2058.2278.2508.2728.2948.316 390
400 8.3168.3388.3618.3838.4058.4278.4508.4728.4948.5168.539 400
410 8.5398.5618.5838.6058.6288.6508.6728.6948.7178.7398.761 410
420 8.7618.7848.8068.8288.8518.8738.8958.9188.9408.9628.985 420
430 8.9859.0079.0299.0529.0749.0969.1199.1419.1639.1869.208 430
440 9.2089.2319.2539.2759.2989.3209.3439.3659.3889.4109.432 440
450 9.4329.4559.4779.5009.5229.5459.5679.5909.6129.6359.657 450
460 9.6579.6809.7029.7259.7479.7709.7929.8159.8379.8609.882 460
470 9.8829.9059.9279.9509.9739.995
10.01810.04010.06310.086
10.108 470
480 10.10810.13110.15310.17610.19910.22110.24410.26710.28910.31210.334 480
490 10.33410.35710.38010.40210.42510.44810.47110.49310.51610.53910.561 490
500 10.56110.58410.60710.62910.65210.67510.69810.72010.74310.76610.789 500
510 10.78910.81110.83410.85710.88010.90310.92510.94810.97110.99411.017 510
520 11.01711.03911.06211.08511.10811.13111.15411.17611.19911.22211.245 520
530 11.24511.26811.29111.31311.33611.35911.38211.40511.42811.45111.474 530
540 11.47411.49711.51911.54211.56511.58811.61111.63411.65711.68011.703 540
550 11.70311.72611.74911.77211.79511.81811.84111.86411.88711.91011.933 550
560 11.93311.95611.97812.00112.02412.04712.07012.09312.11612.14012.163 560
570 12.16312.18612.20912.23212.25512.27812.30112.32412.34712.37012.393 570
580 12.39312.41612.43912.46212.48512.50812.53112.55412.57712.60012.624 580
590 12.62412.64712.67012.69312.71612.73912.76212.78512.80812.83112.855 590
600 12.85512.87812.90112.92412.94712.97012.99313.01613.04013.06313.086 600
610 13.08613.10913.13213.15513.17913.20213.22513.24813.27113.29413.318 610
620 13.31813.34113.36413.38713.41013.43313.45713.48013.50313.52613.549 620
630 13.54913.57313.59613.61913.64213.66513.68913.71213.73513.75813.782 630
640 13.78213.80513.82813.85113.87413.89813.92113.94413.96713.99114.014 640
650 14.01414.03714.06014.08414.10714.13014.15414.17714.20014.22314.247 650
660 14.24714.27014.29314.31614.34014.36314.38614.41014.43314.45614.479 660
670 14.47914.50314.52614.54914.57314.59614.61914.64314.66614.68914.713 670
680 14.71314.73614.75914.78314.80614.82914.85314.87614.89914.92314.946 680
690 14.94614.96914.99315.01615.03915.06315.08615.10915.13315.15615.179 690
°F012345678910°F
°F012345678910°F
TEMP-197
Reference
Tables
N.I.S.T.
Monograph 175
Revised to
ITS‑90
°F
IEC color code
K
TYPE
ANSI color code
Revised Thermocouple
Reference Tables
Nickel-Chromium
vs.
Nickel-Aluminum
+
–
Extension
Grade
MAXIMUM TEMPERATURE RANGE
Thermocouple Grade
– 328 to 2282°F
– 200 to 1250°C
Extension Grade
32 to 392°F
0 to 200°C
LIMITS OF ERROR
(whichever is greater)
Standard: 2.2°C or 0.75% Above 0°C
2.2°C or 2.0% Below 0°C
Special: 1.1°C or 0.4%
COMMENTS, BARE WIRE ENVIRONMENT:
Clean Oxidizing and Inert; Limited Use in
Vacuum or Reducing; Wide Temperature
Range; Most Popular Calibration
TEMPERATURE IN DEGREES °F
REFERENCE JUNCTION AT 32°F
Thermoelectric Voltage in Millivolts
700 15.17915.20315.22615.25015.27315.29615.32015.34315.36615.39015.413 700
710 15.41315.43715.46015.48315.50715.53015.55415.57715.60015.62415.647 710
720 15.64715.67115.69415.71715.74115.76415.78815.81115.83415.85815.881 720
730 15.88115.90515.92815.95215.97515.99816.02216.04516.06916.09216.116 730
740 16.11616.13916.16316.18616.20916.23316.25616.28016.30316.32716.350 740
750 16.35016.37416.39716.42116.44416.46816.49116.51416.53816.56116.585 750
760 16.58516.60816.63216.65516.67916.70216.72616.74916.77316.79616.820 760
770 16.82016.84316.86716.89016.91416.93716.96116.98417.00817.03117.055 770
780 17.05517.07817.10217.12517.14917.17317.19617.22017.24317.26717.290 780
790 17.29017.31417.33717.36117.38417.40817.43117.45517.47817.50217.526 790
800 17.52617.54917.57317.59617.62017.64317.66717.69017.71417.73817.761 800
810 17.76117.78517.80817.83217.85517.87917.90217.92617.95017.97317.997 810
820 17.99718.02018.04418.06818.09118.11518.13818.16218.18518.20918.233 820
830 18.23318.25618.28018.30318.32718.35118.37418.39818.42118.44518.469 830
840 18.46918.49218.51618.53918.56318.58718.61018.63418.65718.68118.705 840
850 18.70518.72818.75218.77618.79918.82318.84618.87018.89418.91718.941 850
860 18.94118.96518.98819.01219.03519.05919.08319.10619.13019.15419.177 860
870 19.17719.20119.22419.24819.27219.29519.31919.34319.36619.39019.414 870
880 19.41419.43719.46119.48519.50819.53219.55619.57919.60319.62619.650 880
890 19.65019.67419.69719.72119.74519.76819.79219.81619.83919.86319.887 890
900 19.88719.91019.93419.95819.98120.00520.02920.05220.07620.10020.123 900
910 20.12320.14720.17120.19420.21820.24220.26520.28920.31320.33620.360 910
920 20.36020.38420.40720.43120.45520.47920.50220.52620.55020.57320.597 920
930 20.59720.62120.64420.66820.69220.71520.73920.76320.78620.81020.834 930
940 20.83420.85720.88120.90520.92920.95220.97621.00021.02321.04721.071 940
950 21.07121.09421.11821.14221.16521.18921.21321.23621.26021.28421.308 950
960 21.30821.33121.35521.37921.40221.42621.45021.47321.49721.52121.544 960
970 21.54421.56821.59221.61621.63921.66321.68721.71021.73421.75821.781 970
980 21.78121.80521.82921.85221.87621.90021.92421.94721.97121.99522.018 980
990 22.01822.04222.06622.08922.11322.13722.16022.18422.20822.23222.255 990
1000 22.25522.27922.30322.32622.35022.37422.39722.42122.44522.46822.492 1000
1010 22.49222.51622.54022.56322.58722.61122.63422.65822.68222.70522.729 1010
1020 22.72922.75322.77622.80022.82422.84722.87122.89522.91922.94222.966 1020
1030 22.96622.99023.01323.03723.06123.08423.10823.13223.15523.17923.203 1030
1040 23.20323.22623.25023.27423.29723.32123.34523.36823.39223.41623.439 1040
1050 23.43923.46323.48723.51023.53423.55823.58123.60523.62923.65223.676 1050
1060 23.67623.70023.72323.74723.77123.79423.81823.84223.86523.88923.913 1060
1070 23.91323.93623.96023.98424.00724.03124.05524.07824.10224.12624.149 1070
1080 24.14924.17324.19724.22024.24424.26724.29124.31524.33824.36224.386 1080
1090 24.38624.40924.43324.45724.48024.50424.52724.55124.57524.59824.622 1090
1100 24.62224.64624.66924.69324.71724.74024.76424.78724.81124.83524.858 1100
1110 24.85824.88224.90524.92924.95324.97625.00025.02425.04725.07125.094 1110
1120 25.09425.11825.14225.16525.18925.21225.23625.26025.28325.30725.330 1120
1130 25.33025.35425.37725.40125.42525.44825.47225.49525.51925.54325.566 1130
1140 25.56625.59025.61325.63725.66025.68425.70825.73125.75525.77825.802 1140
1150 25.80225.82525.84925.87325.89625.92025.94325.96725.99026.01426.037 1150
1160 26.03726.06126.08426.10826.13226.15526.17926.20226.22626.24926.273 1160
1170 26.27326.29626.32026.34326.36726.39026.41426.43726.46126.48426.508 1170
1180 26.50826.53226.55526.57926.60226.62626.64926.67326.69626.72026.743 1180
1190 26.74326.76726.79026.81426.83726.86126.88426.90726.93126.95426.978 1190
1200 26.97827.00127.02527.04827.07227.09527.11927.14227.16627.18927.213 1200
1210 27.21327.23627.25927.28327.30627.33027.35327.37727.40027.42427.447 1210
1220 27.44727.47127.49427.51727.54127.56427.58827.61127.63527.65827.681 1220
1230 27.68127.70527.72827.75227.77527.79827.82227.84527.86927.89227.915 1230
1240 27.91527.93927.96227.98628.00928.03228.05628.07928.10328.12628.149 1240
1250 28.14928.17328.19628.21928.24328.26628.28928.31328.33628.36028.383 1250
1260 28.38328.40628.43028.45328.47628.50028.52328.54628.57028.59328.616 1260
1270 28.61628.64028.66328.68628.71028.73328.75628.78028.80328.82628.849 1270
1280 28.84928.87328.89628.91928.94328.96628.98929.01329.03629.05929.082 1280
1290 29.08229.10629.12929.15229.17629.19929.22229.24529.26929.29229.315 1290
1300 29.31529.33829.36229.38529.40829.43129.45529.47829.50129.52429.548 1300
1310 29.54829.57129.59429.61729.64029.66429.68729.71029.73329.75729.780 1310
1320 29.78029.80329.82629.84929.87329.89629.91929.94229.96529.98930.012 1320
1330 30.01230.03530.05830.08130.10430.12830.15130.17430.19730.22030.243 1330
1340 30.24330.26730.29030.31330.33630.35930.38230.40530.42930.45230.475 1340
1350 30.47530.49830.52130.54430.56730.59030.61330.63730.66030.68330.706 1350
1360 30.70630.72930.75230.77530.79830.82130.84430.86830.89130.91430.937 1360
1370 30.93730.96030.98331.00631.02931.05231.07531.09831.12131.14431.167 1370
1380 31.16731.19031.21331.23631.26031.28331.30631.32931.35231.37531.398 1380
1390 31.39831.42131.44431.46731.49031.51331.53631.55931.58231.60531.628 1390
1400 31.62831.65131.67431.69731.72031.74331.76631.78931.81231.83431.857 1400
1410 31.85731.88031.90331.92631.94931.97231.99532.01832.04132.06432.087 1410
1420 32.08732.11032.13332.15632.17932.20232.22432.24732.27032.29332.316 1420
1430 32.31632.33932.36232.38532.40832.43132.45332.47632.49932.52232.545 1430
1440 32.54532.56832.59132.61432.63632.65932.68232.70532.72832.75132.774 1440
1450 32.77432.79632.81932.84232.86532.88832.91132.93332.95632.97933.002 1450
1460 33.00233.02533.04733.07033.09333.11633.13933.16133.18433.20733.230 1460
1470 33.23033.25333.27533.29833.32133.34433.36633.38933.41233.43533.458 1470
1480 33.45833.48033.50333.52633.54833.57133.59433.61733.63933.66233.685 1480
1490 33.68533.70833.73033.75333.77633.79833.82133.84433.86733.88933.912 1490
1500 33.91233.93533.95733.98034.00334.02534.04834.07134.09334.11634.139 1500
1510 34.13934.16134.18434.20734.22934.25234.27534.29734.32034.34334.365 1510
1520 34.36534.38834.41034.43334.45634.47834.50134.52434.54634.56934.591 1520
1530 34.59134.61434.63734.65934.68234.70434.72734.75034.77234.79534.817 1530
1540 34.81734.84034.86234.88534.90834.93034.95334.97534.99835.02035.043 1540
1550 35.04335.06535.08835.11035.13335.15635.17835.20135.22335.24635.268 1550
1560 35.26835.29135.31335.33635.35835.38135.40335.42635.44835.47135.493 1560
1570 35.49335.51635.53835.56035.58335.60535.62835.65035.67335.69535.718 1570
1580 35.71835.74035.76335.78535.80735.83035.85235.87535.89735.92035.942 1580
1590 35.94235.96435.98736.00936.03236.05436.07636.09936.12136.14436.166 1590
1600 36.16636.18836.21136.23336.25636.27836.30036.32336.34536.36736.390 1600
1610 36.39036.41236.43436.45736.47936.50136.52436.54636.56836.59136.613 1610
1620 36.61336.63536.65836.68036.70236.72536.74736.76936.79236.81436.836 1620
1630 36.83636.85936.88136.90336.92536.94836.97036.99237.01437.03737.059 1630
1640 37.05937.08137.10437.12637.14837.17037.19337.21537.23737.25937.281 1640
1650 37.28137.30437.32637.34837.37037.39337.41537.43737.45937.48137.504 1650
1660 37.50437.52637.54837.57037.59237.61537.63737.65937.68137.70337.725 1660
1670 37.72537.74837.77037.79237.81437.83637.85837.88137.90337.92537.947 1670
1680 37.94737.96937.99138.01338.03638.05838.08038.10238.12438.14638.168 1680
1690 38.16838.19038.21238.23538.25738.27938.30138.32338.34538.36738.389 1690
1700 38.38938.41138.43338.45538.47738.49938.52238.54438.56638.58838.610 1700
1710 38.61038.63238.65438.67638.69838.72038.74238.76438.78638.80838.830 1710
1720 38.83038.85238.87438.89638.91838.94038.96238.98439.00639.02839.050 1720
1730 39.05039.07239.09439.11639.13839.16039.18239.20439.22639.24839.270 1730
1740 39.27039.29239.31439.33539.35739.37939.40139.42339.44539.46739.489 1740
1750 39.48939.51139.53339.55539.57739.59939.62039.64239.66439.68639.708 1750
1760 39.70839.73039.75239.77439.79639.81739.83939.86139.88339.90539.927 1760
1770 39.92739.94939.97039.99240.01440.03640.05840.08040.10140.12340.145 1770
1780 40.14540.16740.18940.21140.23240.25440.27640.29840.32040.34140.363 1780
1790 40.36340.38540.40740.42940.45040.47240.49440.51640.53740.55940.581 1790
1800 40.58140.60340.62440.64640.66840.69040.71140.73340.75540.77740.798 1800
1810 40.79840.82040.84240.86440.88540.90740.92940.95040.97240.99441.015 1810
1820 41.01541.03741.05941.08141.10241.12441.14641.16741.18941.21141.232 1820
1830 41.23241.25441.27641.29741.31941.34141.36241.38441.40541.42741.449 1830
1840 41.44941.47041.49241.51441.53541.55741.57841.60041.62241.64341.665 1840
1850 41.66541.68641.70841.73041.75141.77341.79441.81641.83841.85941.881 1850
1860 41.88141.90241.92441.94541.96741.98842.01042.03242.05342.07542.096 1860
1870 42.09642.11842.13942.16142.18242.20442.22542.24742.26842.29042.311 1870
1880 42.31142.33342.35442.37642.39742.41942.44042.46242.48342.50542.526 1880
1890 42.52642.54842.56942.59142.61242.63342.65542.67642.69842.71942.741 1890
°F012345678910°F
°F012345678910°F
TEMP-198
TEMPERATURE
°F012345678910°F
°F012345678910°F
°F
Nickel-Chromium
vs.
Nickel-Aluminum
+
–
Extension
Grade
Thermoelectric Voltage in Millivolts
ANSI color code
Revised Thermocouple
Reference Tables
IEC color code
MAXIMUM TEMPERATURE RANGE
Thermocouple Grade
– 328 to 2282°F
– 200 to 1250°C
Extension Grade
32 to 392°F
0 to 200°C
LIMITS OF ERROR
(whichever is greater)
Standard: 2.2°C or 0.75% Above 0°C
2.2°C or 2.0% Below 0°C
Special: 1.1°C or 0.4%
COMMENTS, BARE WIRE ENVIRONMENT:
Clean Oxidizing and Inert; Limited Use in
Vacuum or Reducing; Wide Temperature
Range; Most Popular Calibration
TEMPERATURE IN DEGREES °F
REFERENCE JUNCTION AT 32°F
TYPE
Reference
Tables
N.I.S.T.
Monograph 175
Revised to
ITS‑90
K
°F012345678910°F
°F012345678910°F
1900 42.74142.76242.78342.80542.82642.84842.86942.89142.91242.93342.955 1900
1910 42.95542.97642.99843.01943.04043.06243.08343.10443.12643.14743.169 1910
1920 43.16943.19043.21143.23343.25443.27543.29743.31843.33943.36143.382 1920
1930 43.38243.40343.42543.44643.46743.48943.51043.53143.55243.57443.595 1930
1940 43.59543.61643.63843.65943.68043.70143.72343.74443.76543.78743.808 1940
1950 43.80843.82943.85043.87243.89343.91443.93543.95743.97843.99944.020 1950
1960 44.02044.04144.06344.08444.10544.12644.14744.16944.19044.21144.232 1960
1970 44.23244.25344.27544.29644.31744.33844.35944.38044.40244.42344.444 1970
1980 44.44444.46544.48644.50744.52844.55044.57144.59244.61344.63444.655 1980
1990 44.65544.67644.69744.71944.74044.76144.78244.80344.82444.84544.866 1990
2000 44.86644.88744.90844.92944.95044.97144.99245.01445.03545.05645.077 2000
2010 45.07745.09845.11945.14045.16145.18245.20345.22445.24545.26645.287 2010
2020 45.28745.30845.32945.35045.37145.39245.41345.43445.45545.47645.497 2020
2030 45.49745.51845.53945.56045.58045.60145.62245.64345.66445.68545.706 2030
2040 45.70645.72745.74845.76945.79045.81145.83245.85245.87345.89445.915 2040
2050 45.91545.93645.95745.97845.99946.01946.04046.06146.08246.10346.124 2050
2060 46.12446.14546.16546.18646.20746.22846.24946.26946.29046.31146.332 2060
2070 46.33246.35346.37346.39446.41546.43646.45746.47746.49846.51946.540 2070
2080 46.54046.56046.58146.60246.62346.64346.66446.68546.70646.72646.747 2080
2090 46.74746.76846.78946.80946.83046.85146.87146.89246.91346.93346.954 2090
2100 46.95446.97546.99547.01647.03747.05747.07847.09947.11947.14047.161 2100
2110 47.16147.18147.20247.22347.24347.26447.28447.30547.32647.34647.367 2110
2120 47.36747.38747.40847.42947.44947.47047.49047.51147.53147.55247.573 2120
2130 47.57347.59347.61447.63447.65547.67547.69647.71647.73747.75747.778 2130
2140 47.77847.79847.81947.83947.86047.88047.90147.92147.94247.96247.983 2140
2150 47.98348.00348.02448.04448.06548.08548.10548.12648.14648.16748.187 2150
2160 48.18748.20848.22848.24848.26948.28948.31048.33048.35048.37148.391 2160
2170 48.39148.41148.43248.45248.47348.49348.51348.53448.55448.57448.595 2170
2180 48.59548.61548.63548.65648.67648.69648.71748.73748.75748.77748.798 2180
2190 48.79848.81848.83848.85948.87948.89948.91948.94048.96048.98049.000 2190
2200 49.00049.02149.04149.06149.08149.10149.12249.14249.16249.18249.202 2200
2210 49.20249.22349.24349.26349.28349.30349.32349.34449.36449.38449.404 2210
2220 49.40449.42449.44449.46549.48549.50549.52549.54549.56549.58549.605 2220
2230 49.60549.62549.64549.66649.68649.70649.72649.74649.76649.78649.806 2230
2240 49.80649.82649.84649.86649.88649.90649.92649.94649.96649.98650.006 2240
2250 50.00650.02650.04650.06650.08650.10650.12650.14650.16650.18650.206 2250
2260 50.20650.22650.24650.26650.28650.30650.32650.34650.36650.38550.405 2260
2270 50.40550.42550.44550.46550.48550.50550.52550.54550.56450.58450.604 2270
2280 50.60450.62450.64450.66450.68450.70350.72350.74350.76350.78350.802 2280
2290 50.80250.82250.84250.86250.88250.90150.92150.94150.96150.98151.000 2290
2300 51.00051.02051.04051.06051.07951.09951.11951.13951.15851.17851.198 2300
2310 51.19851.21751.23751.25751.27651.29651.31651.33651.35551.37551.395 2310
2320 51.39551.41451.43451.45351.47351.49351.51251.53251.55251.57151.591 2320
2330 51.59151.61151.63051.65051.66951.68951.70851.72851.74851.76751.787 2330
2340 51.78751.80651.82651.84551.86551.88551.90451.92451.94351.96351.982 2340
2350 51.98252.00252.02152.04152.06052.08052.09952.11952.13852.15852.177 2350
2360 52.17752.19752.21652.23552.25552.27452.29452.31352.33352.35252.371 2360
2370 52.37152.39152.41052.43052.44952.46852.48852.50752.52752.54652.565 2370
2380 52.56552.58552.60452.62352.64352.66252.68152.70152.72052.73952.759 2380
2390
52.759 52.77852.79752.81752.83652.85552.87552.89452.91352.93252.952 2390
2400 52.95252.97152.99053.01053.02953.04853.06753.08753.10653.12553.144 2400
2410 53.14453.16353.18353.20253.22153.24053.26053.27953.29853.31753.336 2410
2420 53.33653.35553.37553.39453.41353.43253.45153.47053.49053.50953.528 2420
2430 53.52853.54753.56653.58553.60453.62353.64353.66253.68153.70053.719 2430
2440 53.71953.73853.75753.77653.79553.81453.83353.85253.87153.89053.910 2440
2450 53.91053.92953.94853.96753.98654.00554.02454.04354.06254.08154.100 2450
2460 54.10054.11954.13854.15754.17654.19554.21454.23354.25254.27154.289 2460
2470 54.28954.30854.32754.34654.36554.38454.40354.42254.44154.46054.479 2470
2480 54.47954.49854.51754.53654.55454.57354.59254.61154.63054.64954.668 2480
2490 54.66854.68754.70554.72454.74354.76254.78154.80054.81954.83754.856 2490
2500 54.85654.87554.894
2500
°F012345678910°F
°F012345678910°F
TEMP-199