0.25mm*7 / 3wires RTD Thermocouple extension wire with FEP
insulation and SS shield
2.Thermocouple RTD wire
Thermocouple RTD wire Classification
1. Thermocouple level (high temperature level). This type of
thermocouple wire is mainly suitable for thermocouple type K, J, E,
T, N and L and other high temperature detection instrument,
temperature sensor, etc.
2. Compensating wire level (low temperature level). This type of
thermocouple wire is mainly suitable for compensating cable and
extension wire of various thermocouples of type S, R, B, K, E, J,
T, N and L, heating cable, control cable and so on.
Thermocouple variety and index
Thermocouple Variety and Index
3 . Dimensions and Tolerance of Fiberglass Insulated Thermocouple
Dimensions / Tolerance mm ) : 4.0+-0.25
Color code & initial calibration tolerances for thermocouple
|Thermocouple Type||ANSI Color Code||Initial Calibration Tolerances|
|J||White/Red||Brown||0°C to +285°C|
285°C to +750°C
|K||Yellow/Red||Brown||-200°C to -110°C|
-110°C to 0°C
0°C to +285°C
285°C to +1250°C
|T||Blue/Red||Brown||-200°C to -65°C|
-65°C to +130°C
130°C to +350°C
|E||Purple/Red||Brown||-200°C to -170°C|
-170°C to +250°C
250°C to +340°C
Color Code & Initial Calibration Tolerance for Extension Wire:
|Extension type||ANSI Color Code||Initial Calibration Tolerances|
|Iron (+) vs. Constantan(-)||JX||White/Red||Black||0°C to +200°C||±2.2°C||±1.1°C|
|CHROMEL (+) vs. ALUMEL (-)||KX||Yellow/Red||Yellow||0°C to +200°C||±2.2°C||±1.1°C|
|Copper(+) vs. Constantan(-)||TX||Blue/Red||Blue||-60°C to +100°C||±1.1°C||± .5°C|
|CHROMEL(+) vs. Constantan(-)||EX||Purple/Red||Purple||0°C to +200°C||±1.7°C||±1.1°C|
PVC-PVC Physical Properties:
|Cut Through Resistance||Good||Good|
|Solder Iron Resistance||Poor||Poor|
|Service Temperature||105ºC continuous|
1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you
If we do not have, for spool wire, we can produce 1 spool, about
2-3kg. For coil wire, 25kg.
2. How can you pay for small sample amount?
We have Western union account, wire transfer for sample amount also
3. Customer do not have express account. How will us arrange the
delivery for sample order?
Just need to provide your address information, we will check the
express cost, you can arrange the express cost together with sample
4. What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery
and total amount. Let's talk more in details after getting your
5. Do you provide free samples?
If you want several meters and we have stock of your size, we can
provide, customer need to bear the International express cost.
6. What's our working time?
We will give you reply through email/phone Online contact tool
within 24 hours. No matter working day or holidays.