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Products－Industrial temperature sensor－Assembling type thermocouples－Tolerance and applicable standards
Thermocouple Tolerance and Applicable Standards
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JIS C1602
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IEC 584-2
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ASTM E230
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Temp range
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Class
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Tolerance
（℃）
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Class
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Tolerance
（℃）
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Temp range
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Class
|
Tolerance
（℃）
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B
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600℃～1700℃
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2
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±0.0025|t|
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2
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±0.0025|t|
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870℃～1700℃
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STD
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±0.5 %
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600℃～800℃
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3
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±4
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3
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±4
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800℃～1700℃
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±0.005|t|
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±0.005|t|
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R S
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0℃～1100℃
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1
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±1
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1
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±1
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0℃～1450℃
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STD
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±1.5℃
±0.25%
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0℃～600℃
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2
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±1.5
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2
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±1.5
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SP
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±0.6℃ ±0.1%
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600℃～1600℃
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±0.0025|t|
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±0.0025|t|
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N K
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-40℃～+375℃
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1
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±1.5
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1
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±1.5
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0℃～+1260℃
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STD
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±2.2℃ ±0.75%
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+375℃～+1000℃
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±0.004 |t|
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±0.004 |t|
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-40℃~+333℃
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2
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±2.5
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2
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±2.5
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SP
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±1.1℃ ±0.4%
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+333℃～+1200℃
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±0.0075|t|
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±0.0075|t|
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-167℃~+40℃
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3
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±2.5
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3
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±2.5
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-200℃～0℃
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STD
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±2.2℃ ±2%
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-200℃~-167℃
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±0.015|t|
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±0.015|t|
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E
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-40℃~+375℃
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1
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±1.5
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1
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±1.5
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0℃～+870℃
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STD
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±1.7℃ ±0.5%
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+375℃～+800℃
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±0.004 |t|
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±0.004 |t|
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-40℃~+333℃
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2
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±2.5
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2
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±2.5
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SP
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±1℃ ±0.4%
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+333℃～+900℃
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±0.0075 |t|
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±0.0075 |t|
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-167℃～+40℃
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3
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±2.5
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3
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±2.5
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-200℃～0℃
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STD
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±1.7℃ ±1%
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-200℃～-167℃
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±0.015|t|
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±0.015|t|
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J
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-40℃～+375℃
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1
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±1.5
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1
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±1.5
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0℃～+760℃
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STD
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±2.2℃ ±0.75%
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+375℃～+750℃
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±0.004 |t|
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±0.004 |t|
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-40℃～+333℃
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2
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±2.5
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2
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±2.5
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SP
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±1.1℃ ±0.4%
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+333℃～+750℃
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±0.0075 |t|
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±0.0075 |t|
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T
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-40℃～+125℃
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1
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±0.5
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1
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±0.5
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0℃～+370℃
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STD
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±1℃ ±0.75%
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+125℃～+350℃
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±0.004 |t|
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±0.004 |t|
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-40℃～+133℃
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2
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±1.0
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2
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±1.0
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SP
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±0.5℃±0.4%
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+133℃～+350℃
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±0.0075 |t|
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±0.0075 |t|
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-67℃～+40℃
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3
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±1.0
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3
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±1.0
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-200℃～0℃
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STD
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±1℃±1.5%
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-200℃～-67℃
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±0.015|t|
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±0.015|t|
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(1) Tolerance is referred to as the maximum allowable deviation between measudng junction temperature and the temperature dedved from the emf table．
(2) ASTM tolerance is ℃ or ％ value for the measured temperature. whichever is greater．
(3) ItI means measuring temperature indicated with the temperature (℃) having no connection with the positive or negative mark．
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