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Color Chart for Thermocouple Extension/Compenasting Wire
  BX RX/SX KX WX VX EX JX TX NX
JIS C1610
to
Japan
 
Sheath Gary Black

Blue

Blue Blue Purple Yellow Brown -
+ / - Red White
Red
White Red White Red White Red White Red White Red White Red White - -
ASTM
E230-1996
to
America
   
Sheath Gary Green

Yellow

- - Purple Black Blue Orange
+ / - Gary Red Black Red Yellow Red - - - - Purple Red White Red Blue Red Orange Red
ICE 584-3
to
Europe
Sheath Gary Orange

Green

Green Green Purple Black Brown Pink
+ / - Gray White Orange White Green White Green White Green White Purple White Black White Brown White Pink White
*AS for the coating thermo-couple of the ASTM standard, the sheath color becomes brown.
 
Types of Extension/Compensating Wires & Margin of error
ICE584-3(JIS C1610-1995)
Thermocouple Sensor Types Composing materials of Conductor Temp of connected point white thermocouple Margin of error(°C)
Positive(PX) Negative(NX) (°C) Class1 Class2
K KX Chromel® Alumel® -25~+200 ±1.5 ±2.5
KCA 0~+150 - ±2.5
KCB Iron Constantan 0~+150 - ±2.5
KCC Copper Constantan 0~+100 - ±2.5
E EX Chromel® Constantan -25~+200 ±1.5 ±2.5
J JX Iron Constantan -25~+200 ±1.5 ±2.5
T TX Copper Constantan -25~+100 ±0.5 ±1.0
R RCA Copper Copper-Nickel alloy 0~+100 - ±2.5
RCB 0~+200 - ±5.0
S SCA Copper Copper-Nickel alloy 0~+100 - ±2.5
SCB 0~+200 - ±5.0
B BC Copper Copper 0~+100 -
N NX
Nickel-Chromium-Silicon
Nickel-Silicon
-25~+200
±1.5
±2.5
NC Copper-Nickel alloy Copper-Nickel alloy 0~+150 - ±2.5
※Chromel, Alumel (Hoskins trade mark)
 
ASTM E230-1996
Thermocouple Sensor Types Temp of connected point white thermocouple Margin of error(°C)
(°C) Special Standard
K KX 0~+200 ±1.1
±2.2
E EX 0~+200 ±1.0 ±1.7
J JX 0~+200 ±1.1 ±2.2
T TX -60~+100 ±0.5 ±1.0
R RX 0~+200 - ±5.0
S SX 0~+200 - ±5.0
B BX 0~+100 - ±3.7
N NX 0~+200 ±1.1 ±2.2
 
 
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