Omega CL526, Multifunction Indicator-Simulator manual Limit of Error of thermocouple wires, Class

The table below summarizes the error limits for Premium and Standard grades, while Extension grade wire is characterized by limits of error exceeding those in the table.

Errors up to ±4°C may be experienced when using Extension grade thermocouple wire for J and K thermocouples.

Limit of Error of thermocouple wires

The range indicated is the temperature limit for the indicated errors Cold junction at 0 °C

Tc	Class 1	Class 2	Class 3
type T	0.5°C (-40 to +125°C)	1°C (-40 to 133°C)	1°C (-67 to 40°C)
	0.004 . T (T >125°C)	0.0075 . T (T >133 °C)	0.015. T (T <-67°C)
T range	-40 to +350°C	-40 to +350°C	-200 to 40°C
type E	1.5°C (-40 to 375°C)	2.5°C (-40 to 333 °C)	2.5°C (-167 to +40°C)
	0.004.T (T >375°C)	0.0075.T (T >333°C)	0.015.T (T <-167°C)
T range	-40 to 800°C	-40 to 900°C	-200°C to 40°C
type J	1.5°C (-40 to 375°C)	2.5°C (-40 to 333 °C)	2.5°C (-167 to +40°C)
	0.004.T (T >375°C)	0.0075.T (T >333°C)	0.015.T (T <-167°C)
T range	-40 to 750°C	-40 to 750°C	-----
type K e N	1.5°C (-40 to 375°C)	2.5°C (-40 to 333 °C)	2.5°C (-167 to +40°C)
	0.004.T (T >375°C)	0.0075.T (T >333°C)	0.015.T (T <-167°C)
T range	-40 to 1000°C	-40 to 1200°C	-200°C to 40°C
type R e S	1°C (0 to 1100°C)	1.5°C (-40 to 600 °C)	4°C (600 to +800°C)
	1 + 0.003 (T-100)	0.0075.T (T >600°C)	0.005.T (T>800°C)
	(T >1100°C)
T range	0 to 1600°C	0 to 1600°C	----
type B	1°C (0 to 1100°C)	1.5°C (-40 to 600 °C)	4°C (600 to +800°C)
	1 + 0.003 (T-100)	0.0075.T (T >600°C)	0.005.T (T>800°C)
	(T >1100°C)
T range	-----	600 to 1700°C	600 to 1700°C

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