Thermocouple Conversion Tables
B-2
Table B-1
NIST Quartic Coefficients for Types S, R, B, E, J, K, and T
Type S
Thermocouples
1
Temperature
Range (¡C)
a
0
a
1
a
2
a
3
a
4
Error
Range (µV)
Quartic Equation
Argument
Exp.
Argument
Exp.
Argument
Exp.
Argument
Exp.
Argument
Exp.
Exact-
Approx.
-50 to 900
5.5439639
+0
1.0103667
-2
-1.0944499
-5
4.9628963
-9
-7 to 14
0 to 1100
5.8791282
+0
7.9098118
-3
-6.7450002
-6
2.5247577
-9
-16 to 12
0 to 1400
6.2516859
+0
5.8347856
-3
-3.4351369
-6
9.4022202
-10
-35 to 25
0 to 1650
6.5554932
+0
4.4519908
-3
-1.6378513
-6
2.4140360
-10
-55 to 35
0 to 1768
6.6834421
+0
3.9334084
-3
-1.0384046
-6
3.4244511
-11
-60 to 35
400 to 1100
-3.8051591
+2
8.7228147
+0
6.2984807
-4
9.0526670
-7
-2.9241601
-10
-.7 to .5
400 to 1400
-5.2412524
+2
9.5827994
+0
-1.2077351
-3
2.5723104
-6
-8.3681057
-10
-1.6 to 1.5
400 to 1650
-5.0061921
+2
9.4591354
+0
-9.7986687
-4
2.3967559
-6
-7.8837971
-10
-1.8 to 1.9
1050 to 1400
1.4352322
+3
2.9873073
+0
6.9951678
-3
-1.8986036
-6
6.5006637
-11
-.05 to .05
1050 to 1650
1.3054176
+3
3.4129348
+0
6.4741403
-3
-1.6163524
-6
7.9103746
-12
-.05 to .05
1400 to 1550
1.8695088
+2
6.4091373
+0
3.4664812
-3
-2.7553724
-7
-2.1606150
-10
-.05 to .05
1400 to 1650
1.0863331
+3
3.9952876
+0
5.8939317
-3
-1.3595782
-6
-3.4675031
-11
-.05 to .05
1400 to 1768
-7.4180405
+4
2.0043202
+2
-1.8607781
-1
8.1899566
-5
-1.3556030
-8
-1.0 to 1.3
1666 to 1768
8.2703440
+4
-1.3532278
+2
8.0243878
-2
-1.0633404
-5
-1.7212343
-9
-.05 to .05
Reference
Junction
Correction
0 to 50
5.3994446
+0
1.2467754
-2
1.9934168
-5
-0.01 to +0.01
1
Quartic approximations to the data as a function of temperature (¡C) in selected temperature ranges.
The expansion is of the form E = a
0
+ a
1
T + a
2
T
2
+ a
3
T
3
+ a
4
T
4
where E is in microvolts and T is in degrees Celsius.
Type S
Thermocouples
2
Temperature
Range (¡C)
a
0
a
1
a
2
a
3
a
4
Error
Range (¡C)
Quartic Equation
Argument
Exp.
Argument
Exp.
Argument
Exp.
Argument
Exp.
Argument
Exp.
Exact-
Approx.
-50 to 900
1.6414048
-1
-2.0241757
-5
2.7849728
-9
-1.4172102
-13
-11 to 3
0 to 1100
1.5445376
-1
-1.3349067
-5
1.3626587
-9
-5.3270847
-14
-3 to 6
0 to 1400
1.4713897
-1
-9.0783455
-6
6.5660913
-10
-1.8499175
-14
-5 to 9
0 to 1650
1.4260554
-1
-7.0073775
-6
3.8981279
-10
-8.3047780
-15
-6 to 11
0 to 1768
1.4087955
-1
-6.3195007
-6
3.1267454
-10
-5.7422562
15
-6 to 12
400 to 1100
4.1137317
+1
1.1599785
-1
-1.8642979
-6
1.2643267
-11
8.4828836
-16
-.05 to .07
400 to 1400
4.4507790
+1
1.1373998
-1
-1.3349811
-6
-3.9224680
-11
2.6563405
15
-.08 to .08
400 to 1650
4.1670535
+1
1.1543356
-1
-1.6782780
-6
-1.0845801
-11
1.8379726
-15
-.2 to .2
1050 to 1400
-3.0938374
+1
1.4106560
-1
-4.9794442
-6
1.7334256
-10
-1.9262160
15
-.003 to .003
1050 to 1650
1.2226507
+1
1.2706383
-1
-3.2873314
-6
8.3038098
-11
-1.3019379
-16
-.010 to .010
1400 to 1550
1.3866867
+2
9.3486676
-2
4.8592708
-8
-6.3885209
-11
2.2896541
-15
-.0005 to .0005
1400 to 1650
1.3923740
+2
9.3267401
-2
7.7266682
-8
-6.5458208
-11
2.3208160
-15
-.0005 to .0005
1400 to 1768
4.5133695
+3
-1.0046437
+0
1.0322002
-4
-4.3637046
-9
6.9361610
-14
-.13 to .10
1666 to 1768
2.3131446
+4
-5.4122671
+0
4.9347196
-4
-1.9681943
-8
2.9430179
-13
-.0005 to .0005
2
Quartic approximations to the data as a function of voltage in selected temperature ranges (¡C).
The expansion is of the form T = a
0
+ a
1
E + a
2
E
2
+ a
3
E
3
+ a
4
E
4
where E is in microvolts and T is in degrees Celsius.
Содержание 2001-TCSCAN
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