J TYPE THEMOCOUPLE TEMPERATURE SENSOR

About J TYPE THEMOCOUPLE TEMPERATURE SENSOR

Thermocouple Type:
J-Type (Iron-Constantan) thermocouple ” positive leg iron (Fe), negative leg constantan (copper-nickel). thermocouple.in

Temperature Range:
Typical operating range: 0C to +750C (standard) thermocouple.in+1
Some designs/specs show up to 760C continuous. thermocouple.in

Material Composition:
Positive conductor: Iron (Fe)
Negative conductor: Constantan (55% Cu / 45% Ni) thermocouple.in

Seebeck Coefficient (Sensitivity):
Approx. 50“55 µV/C thermocouple.in+1

Output Voltage:
At 100C, 5.27 mV typical (depending on length & junction). RS Components

Accuracy / Tolerance (IEC/ANSI):
±0.75% of reading typical (Class 2 general industrial) thermocouple.in+1
Equivalent to about ±2.2C at some ranges. Sense Thermo Instruments India Pvt. Ltd.

Color Coding (ANSI):
Positive lead: Black
Negative lead: Red thermocouple.in

Response Time:
0.5“5 s (bare wire) depending on junction & insulation. thermocouple.in

Output Characteristics:
Linear EMF vs temperature within operating range; requires cold-junction compensation for accurate use. thermocouple.in

🔠Typical Physical & Industrial Details

Depending on variant, a J-Type thermocouple from TradeIndia sellers might include:

Probe & Sheath Options:
Sheath materials often SS304 / SS316 / Inconel for rugged industrial use. techingauges.com
Mineral-insulated (MgO + metal sheath) for durability. techingauges.com

Junction Types:
Grounded: Fast response
Ungrounded: Less electrical noise

Termination:
Lead wires with connectors or terminal head assemblies. techingauges.com

Process Connections:
Threaded bosses, flanges, or compression fittings available. techingauges.com

📌 Standards & Calibration

J-Type thermocouples are typically manufactured and calibrated per:
IEC 60584-1 (international)
ANSI MC96.1 / ASTM E230 (American)
These define limits of error and temperature-voltage tables for each type. thermocouple.in

🛠Typical Applications

Used widely for:
” Industrial furnaces & ovens
” Plastics / rubber processing
” Heat treatment
” Laboratory & general temperature control
” Reducing or inert environments (preferred over oxidizing at higher temp)