Thermocouple / Compensating Wire - Specifications & Uses

1. Application

1) With insulated on a pair of conductors almost same EMF with thermocouple from low temperature to high temperature,
Connect between the terminal of thermocouple and measuring point with wire.
To compensate error of temperature change on terminal of thermocouple is Compensating Wire.
2) The wire made by same material of thermocouple is called Extension Wire.

2. Thermocouple Wire Type

Thermocouple Type and Material KS C 1602			Thermocouple Wire Type and Material ( KS C 1609 )						Symbol	ISA-MC 96.1-1982 (ANSI MC 96.1)
Thermocouple Type and Material KS C 1602			Material of Pole		Segmentation	Temp. Range(℃)	Tolerance			Temp. Range(℃)	Tolerance
Type	Ex. Symbol	Material	Positive(+)	Negative(-)	Segmentation	Temp. Range(℃)	Normal	Precise		Temp. Range(℃)	Normal	Precise
B	-	Platinum Rhodium 30% Platinum Rhodium 6%	SCR COPPER	SCR COPPER	G	0~100	-	-	BC	0~100	+0.000㎷ -0.033㎷	-
R	-	Platinum Rhodium 13% Platinum	SCR COPPER	COPPER NICKEL ALLOY	G	0~150	+3 -7	-	RX SX	0~200	±0.057 ㎷(±5)	-
S	-	Platinum Rhodium 10% Platinum	SCR COPPER	COPPER NICKEL ALLOY	H	0~150	+3 -7	-	RX SX	0~200	±0.057 ㎷(±5)	-
K	CA	CHROMEL ALUMEL	CHROMEL	ALUMEL	G	-20~150	± 2.5	± 1.5	KX	0~200	± 2.2	-
K		CHROMEL ALUMEL	CHROMEL	ALUMEL	H	-20~150	± 2.5	± 1.5	KX	0~200	± 2.2	-
W		IRON W-CONSTANTAN	IRON	W-CONSTANTAN	G	-20~150	± 3	-	WX	-	-	-
W		IRON W-CONSTANTAN	IRON	W-CONSTANTAN	H	-20~150	± 3	-	WX	-	-	-
V		COPPER V-CONSTANTAN	SCR COPPER	V-CONSTANTAN	G	-20~100	± 2.5	-	VX	-	-	-
E	CRC	CHROMEL E-CONSTANTAN	CHROMEL	E-CONSTANTAN	G	-20~150	± 2.5	-	EX	0~200	± 1.7	-
E	CRC	CHROMEL E-CONSTANTAN	CHROMEL	E-CONSTANTAN	H	-20~150	± 2.5	-	EX	0~200	± 1.7	-
J	IC	IRON J-CONSTANTAN	IRON	J-CONSTANTAN	G	-20~150	± 2.5	-	JX	0~200	± 2.2	± 1.1
J	IC	IRON J-CONSTANTAN	IRON	J-CONSTANTAN	H	-20~150	± 2.5	-	JX	0~200	± 2.2	± 1.1
T	CC	COPPER T-CONSTANTAN	COPPER	T-CONSTANTAN	G	-20~150	± 2.0	± 1.0	TX	-60~100	± 1.0	± 0.5

3. Properties per materials

Insulation Material	Symbol	Temp. Range(℃)	Water Resistance	Oil Resistance	Solvent Resistance	Insulation Resistance(MΩ/Km)
PVC	V	-20~60	○	△	△	60
Heat Resistant PVC	HV	-20~105	○	△	△	60
PE	E	-60~60	○	△	X	2,500
XLPE	C	-60~125	○	△	X	2,500
PET	P	60~150	◎	◎	◎	1,500
EP	EP	-40~80	△	X	△	80
Nylon	N	-40~120	◎	◎	◎	1,500
Polyimide	PI	-250~300	◎	◎	◎	1,500
Teflon	F	-100~250	◎	◎	◎	1,500
Silicone Rubber	K	-60~200	○	X	○	80
E-Glass	G	-73~480	X	△	○	0.1
S-Glass	S	-73~705	X	△	○	0.1
Ceramic Fiber	-	-18~1205	X	△	○	0.1

4. Description and code of Thermocouple Extension wire

1) Type	2) Segmentation	3) Material of Insulation and Sheath	4) Shield Type	5) Shape	6) Cores Coposition	7) Conductor size and Composition
KX, JX, EX, TX, NX, SX	G : General Normal H : Heat Resistant Normal GS : General Precise HS : Heat Resistant Precise	V : Vinyl HV : Heat resistant Vinyl F : Teflon ( FEP ) G : Glass Fiber	SB : Tin Coated Copper Braiding AL : Aluminum Mylar Tape CU : Copper Tape	F : Flat Type R : Round Type	3P : 3 Pair	7) Conductor size and Composition