Keithley 2001-TCSCAN - Page 90

Thermocouple Conversion Tables
B-4
Type B
Thermocouples
5
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.
0 to 900 -2.3614224 -1 5.7496551 -3 -5.6339756 -7 -1.1808558 -10 -.22 to .14
0 to 1100 -2.3893338 -1 5.7684447 -3 -5.9963692 -7 -9.7041131 -11 -.18 to .20
0 to 1400 -2.3476301 -1 5.7480761 -3 -5.7165679 -7 -1.0838193 -10 -.7 to 1.0
0 to 1650 -1.9185893 -1 5.5578879 -3 -3.3057924 -7 -2.0018428 -10 -4 to 5
0 to 1820 -1.3749133 -1 5.3446673 -3 -9.1094186 -8 -2.8098361 -10 -8 to 9
400 to 1100 1.3740347 +1 -3.2914888 -1 5.9766638 -3 -8.0141311 -7 -2.7203972 -11 -.05 to .05
400 to 1400 -2.5321108 +1 -9.9736579 -2 5.4976533 -3 -3.7806912 -7 -1.6156824 -10 -.5 to .5
400 to 1650 -1.1708354 +2 3.9860894 -1 4.5539656 -3 3.6623964 -7 -3.6969100 -10 -2.0 to 1.8
1050 to 1400 -9.8446259 +2 3.3670688 +0 8.2282215 -4 2.4061224 -6 -7.7901142 -10 -.05 to .05
1050 to 1650 -1.3702395 +3 4.6252371 +0 -7.0976836 -4 3.2325686 -6 -9.4548852 -10 -.05 to .05
1400 to 1550 -4.7644591 +2 2.2890832 +0 1.5749253 -3 2.2417410 -6 -7.8471224 -10 -.05 to .05
1400 to 1650 -6.4878929 +2 2.7380621 +0 1.1375302 -3 2.4305578 -6 -8.1518033 -10 -.05 to .05
Reference
Junction
Correction
0 to 50 -2.4673839 -1 5.9050303 -3 -1.2267180 -6 -0.01 to +0.01
5
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 B
Thermocouples
6
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.
0 to 900 8.9244743 -1 -5.7447033 -4 1.8053618 -7 -1.9719121 -11 -30 to 75
0 to 1100 7.2874066 -1 -3.1771931 -4 6.8254996 -8 -5.1002233 -12 -35 to 90
0 to 1400 5.7822214 -1 -1.6039309 -4 2.2187592 -8 -1.0678514 -12 -45 to 110
0 to 1650 4.9929130 -1 -1.0349686 -4 1.0792281 -8 -3.9111456 -13 -50 to 120
0 to 1820 4.6255054 -1 -8.2176262 -5 7.3717195 -9 -2.2913665 -13 -50 to 130
400 to 1100 1.8946288 +2 3.0966136 -1 -5.8100680 -5 8.2483967 -9 -4.7591774 -13 -.09 to 1.0
400 to 1400 2.0949015 +2 2.7222162 -1 -3.6930932 -5 3.6830239 -9 -1.4483702 -13 -3 to 3
400 to 1650 2.2354664 +2 2.4988761 -1 -2.7160312 -5 2.1299660 -9 -6.4220755 -14 -5 to 5
1050 to 1400 3.2188156 +2 1.8282378 -1 -1.1561743 -5 6.4320083 -10 -1.4544375 -14 -.003 to .003
1050 to 1650 3.4418084 +2 1.7031473 -1 -8.9696912 -6 4.0789445 -10 -6.6410259 -15 -.025 to .020
1400 to 1550 3.7140306 +2 1.5828913 -1 -7.0050689 -6 2.6714849 -10 -2.9082072 -15 -.001 to .001
1400 to 1650 3.9253848 +2 1.4979551 -1 -5.7276293 -6 1.8192801 -10 -7.8042686 -16 -.001 to .001
6
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.