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2640A Specifications
A
A-15
Table A-21. 2640A Thermocouple Specifications
Accuracy ± ºC
Thermocouple Resolution 18ºC to 28ºC-10ºC to 60ºC
90 Day 1 Year 1 Year
Type Temperature ºC Slow Slow Slow Fast Slow Fast
J -100 to 80 .03 0.45 0.50 0.80 0.60 0.80
80 to 230 .02 0.35 0.50 0.70 0.60 0.80
230 to 760 .02 0.40 0.50 0.70 0.80 0.90
K -100 to -25 .04 0.55 0.60 0.90 0.70 1.00
-25 to 120 .03 0.40 0.50 0.80 0.60 0.90
120 to 800 .03 0.50 0.65 0.90 1.00 1.20
800 to 1372 .03 0.70 1.00 1.30 1.60 1.90
N -100 to -25 .05 0.65 0.75 1.20 0.80 1.30
-25 to 120 .05 0.55 0.60 1.00 0.70 1.10
120 to 1000 .04 0.45 0.60 0.90 1.00 1.20
1000 to 1300 .03 0.55 0.75 1.00 1.20 1.50
E -100 to -25 .03 0.45 0.50 0.80 0.60 0.80
-25 to 20 .02 0.35 0.40 0.60 0.50 0.70
20 to 600 .02 0.30 0.40 0.60 0.50 0.80
600 to 1000 .02 0.40 0.50 0.70 0.90 1.00
T -100 to 0 .04 0.60 0.65 1.00 0.70 1.10
0 to 150 .03 0.40 0.50 0.80 0.60 0.90
150 to 400 .02 0.30 0.40 0.60 0.60 0.80
R 250 to 600 0.1 0.90 1.00 2.10 1.20 2.20
600 to 1500 0.1 0.80 0.90 1.80 1.30 2.00
1500 to 1767 0.1 0.85 0.85 1.90 1.70 2.50
S 250 to 1000 0.1 0.95 1.10 2.30 1.30 2.40
1000 to 1400 0.1 0.80 1.00 1.90 1.40 2.30
1400 to 1767 0.1 1.00 1.30 2.20 1.80 2.80
B 600 to 900 0.2 1.20 1.40 3.10 1.50 3.20
900 to 1200 0.2 0.90 1.00 2.20 1.20 2.40
1200 to 1820 0.1 0.75 1.00 1.90 1.30 2.20
C 0 to 150 0.2 0.80 0.90 1.60 1.00 1.70
150 to 650 0.1 0.65 0.75 1.40 1.00 1.50
650 to 1000 .05 0.65 0.85 1.40 1.20 1.80
1000 to 1800 .05 1.00 1.30 2.10 2.10 2.80
1800 to 2316 .05 1.60 2.10 3.20 3.40 4.60