Thermocouple Grade: Wire Calibration Tolerances

Thermocouple Wire and Extension Wire Calibration Tolerances

Calibration Type	Temperature Range		Tolerance Whichever is GREATER
J	32 to 1382°F	0 to 750°C	± 2.2°C or ± 0.75%	± 1.1°C or ± 0.4%
K	32 to 2282°F	0 to 1250°C	± 2.2°C or ± 0.75%	± 1.1°C or ± 0.4%
E	32 to 1652°F	0 to 900°C	± 1.7°C or ± 0.5%	± 1.0°C or ± o.4%
T	32 to 662°F	0 to 350°C	± 1.0°C or ± 0.75%	± 0.5°C or ± 0.4%
R or S	32 to 2642°F	0 to 1450°C	± 1.5° or ± 0.25%	± 0.6°C or ± 0.4%
B	1598 to 3092°F	870 to 1700°C	± 0.5%
N	32 to 2282°F	0 to 1250°C	± 2.2°C or ± 0.75%	± 1.1°C or ± 0.4%

Calibration Type	Temperature Range		Tolerance Whichever is GREATER
JX	32 to 392ºF	0 to 200°C	± 2.2°C	± 1.1°C
KX	32 to 392°F	0 to 200°C	± 2.2°C	± 1.1°C
EX	32 to 392°F	0 to 200°C	± 1.7°C	± 1.0°C
TX	32 to 212°F	0 to 200°C	± 1.0°C	± 0.5°C
NX	32 to 392°F	0 to 200°C	± 2.2°	± 1.1°C

Reference junction 32ºF (0ºC)