A J-type thermocouple cable is a type of temperature-measuring device that consists of two dissimilar metal wires, typically iron (Fe) and constantan (a copper-nickel alloy), joined together at one end to form a junction. This junction generates a voltage proportional to the temperature difference between the junction and the reference end, based on the Seebeck effect.
Key characteristics of J-type thermocouple cables
Temperature range:
J-type thermocouple cables generally operate within the range of -40°C to 750°C (-40°F to 1382°F). However, the actual usable range may be limited by factors such as oxidation of the iron wire at higher temperatures.
Materials:
The positive lead is made of iron, while the negative lead is made of constantan. These materials provide good sensitivity to temperature changes and reasonable stability in various environments.
Color coding:
The positive lead (iron) is usually marked with white insulation, and the negative lead (constantan) is marked with red insulation. This standard color coding helps ensure correct connections and accurate temperature readings.
Insulation and protection:
Various insulation materials can be used to protect the wires and ensure accurate measurements. Common options include PVC for general applications, PTFE for high-temperature and chemical resistance, and glass fiber for extreme conditions.
Applications
J-type thermocouple cables are widely used in various industries due to their moderate temperature range, good sensitivity, and cost-effectiveness. Some typical applications include:
- **Plastics industry**: For monitoring and controlling the temperature of injection molding processes.
- **Food processing**: In ovens, refrigerators, and other equipment where precise temperature control is essential.
- **HVAC systems**: For measuring and regulating temperatures in heating, ventilation, and air conditioning systems.
- **Metalworking**: Used in the heat treatment of metals like steel.
Overall, J-type thermocouple cables are a versatile and reliable choice for temperature measurement in many industrial and commercial settings.
Yiyuan ALL Thermocouple cable Mfr. Model nos.:
Model
Description
Temperature
GG
Fiberglass insulation + Fiberglass out sheath
400°C
GGB
Fiberglass insulation + Fiberglass out sheath+ SSB braid
400°C
GB
Fiberglass insulation + SSB braid
400°C
FF
Teflon FEP insulation with FEP out sheath
200°C
FTF
Teflon FEP + Copper tinned thread braid + FEP out sheath
200°C
FFB
Teflon FEP + FEP out sheath+ SSB braid
200°C
FB
FEP insulation+ SSB braid
200°C
PP
Teflon PFA insulation with PFA out sheath
260°C
PTP
Teflon PFA + Copper tinned thread braid + PFA out sheath
260°C
PPB
Teflon PFA + PFA out sheath+ SSB braid
260°C
PB
Teflon PFA insulation+ SSB braid
260°C
VV
PVC insulation + PVC out sheath
105°C
FV
Teflon FEP+ PVC out sheath
105°C
VVB
PVC insulation + PVC out sheath+ SSB braid
105°C
XX
Silicone rubber insulation + Silicone rubber out sheath
180°C
PX
Teflon PFA +Silicone rubber out sheath
180°C
KK
Kapton insulation + Kapton insulation
260°C
HH
High silica insulation + High silica out sheath
800°C/1100°C
Yiyuan POPULAR type J thermocouple cable model no.
(Click the photo to see the spec.)
Model no. |
Description | Temperature |
PP-J |
Teflon PFA+PFA | 260°C |
Model no. |
Description | Temperature |
FF-J |
Teflon FEP+FEP | 200°C |
Model no. |
Description | Temperature |
FTF-J |
Teflon FEP+Copper tinned thread +FEP | 200°C |
Model no. |
Description | Temperature |
FFB-J |
Teflon FEP+FEP + SSB | 200°C |
Model no. |
Description | Temperature |
GG-J |
Fiberglass + Fiberglass | 400°C |
Model no. |
Description | Temperature |
GGB-J |
Fiberglass + Fiberglass + SSB | 400°C |
Model no. |
Description | Temperature |
FV-J |
FEP + PVC | 105°C |
You can go to our type J thermocouple CABLE LIST by click here!
To know more about thermocouple cable you can DOWNLOAD OUR CATALOGUE by click here!
Know more other thermocouple cable:
Teflon insulated | Fiberglass insulated | PVC insulated|
Silicone Insulated | Polymide insulated | High silica insulated |
|K type | J type | T type |N type| R/S type | E type |B type |
If you have special requirements please feel free to message or email us!
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Email: sales@yiyuancable.com
We, Changzhou Yiyuan High Temperature cable Co., ltd. is a China professional J type thermocouple cable , extension cable, compensating cable manufacturer, supplier.
Focus on thermo wire ,cable since 2010 year.
Customized thermocouple cable can be supplied.
We became a famous instrument supplier of thermocouple wire, and RTD sensor extension wire at 2012 year. After ten years development we have exported many cables around the world including Canada, Czekh, Ghana, India, Italy, Malaysia, Iran, Israel, Russia, Singapore, South Africa, Turkey, etc.
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