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Stainless Steel Sheathed Type J Thermocouple Probe 3×100mm 2m Silicone Lead Mini Plug
Product Description
Type J Thermocouple Probe (Stainless Steel Sheath, 3×100mm, 2m Silicone Lead, Mini Plug)
Product Overview
Type J thermocouple probe (as shown) from Tankii Alloy Material is a rugged, industrial-grade temperature sensor featuring a Type J (Iron/Constantan) thermocouple junction, 304 stainless steel protective sheath, high-temperature silicone insulated lead wire, and a standard black mini thermocouple plug (IEC color-coded for Type J). Engineered for durability and accuracy, it delivers stable thermoelectric performance across -40℃ to 750℃ (continuous) / 800℃ (short-term). Ideal for industrial furnaces, HVAC, food processing, and laboratory use, it offers fast thermal response, excellent mechanical protection, and plug-and-play convenience.
Standard Designations & Core Material Foundation
- Thermocouple Type: Type J (Iron/Constantan; compliant with IEC 60584-2 Class 1)
- Key Specification: 3mm (sheath diameter) × 100mm (sheath length); 2×0.5mm conductor diameter; 2m silicone lead; black mini Type J plug
- Chemical Composition: Positive (JP): Pure Iron (Fe ≥99.5%); Negative (JN): Constantan (Cu55/Ni45)
- Sheath Material: 304 Stainless Steel (corrosion-resistant, high-temperature)
- Insulation Material: High-temperature silicone (extruded, temperature rating 200℃)
- Compliant Standards: IEC 60584-2, GB/T 4989-2013, ASTM E230, RoHS 2.0
- Manufacturer: Tankii Alloy Material, certified to ISO 9001 and IATF 16949
Key Core Advantages (Centered on Type J & Sheath Design)
1. Superior Type J Thermoelectric Performance
- High EMF Output & Stability: Type J provides higher thermoelectric potential than Type K at lower temperatures (0–400℃), with error ≤±1.0℃ (0–200℃) / ±0.75% t (200–750℃), ideal for precision low-to-medium temperature measurement.
- Oxidation Resistance in Reducing Atmospheres: Performs reliably in reducing environments (e.g., furnace flue gas, inert gas) where Type K may suffer oxidation-induced drift.
2. Rugged Stainless Steel Sheath Protection
- Mechanical & Corrosion Resistance: 304 stainless steel sheath resists bending, abrasion, and mild chemical corrosion, extending service life by 3× compared to unprotected probes.
- High-Temperature Structural Integrity: Withstands continuous operation up to 750℃, maintaining shape and measurement accuracy in high-temperature industrial processes.
3. Flexible Silicone Lead & Plug-and-Play Convenience
- Silicone Insulation Performance: Operates stably at -60℃ to 200℃, with excellent flexibility (even at low temperatures) and IP65-level waterproof/oil resistance, suitable for wet and oily environments.
- Standard Mini Plug: Black Type J mini plug ensures universal compatibility with most handheld thermometers and data loggers, eliminating wiring errors and reducing setup time.
Technical Specifications
| Attribute | Value (Typical) |
|---|---|
| Thermocouple Type | Type J (Iron/Constantan) |
| Sheath Material | 304 Stainless Steel |
| Sheath Dimensions | 3mm (diameter) × 100mm (length); tolerance ±0.1mm / ±1mm |
| Conductor Diameter | 2×0.5mm (±0.02mm) |
| Lead Length | 2m (customizable: 1m/3m/5m) |
| Insulation Material | Silicone (extruded, 200℃ rating) |
| Connector | Mini Type J plug (black, IEC color-coded) |
| Operating Temperature Range | -40℃ to 750℃ (continuous); -40℃ to 800℃ (short-term ≤30min) |
| Accuracy Class | Class 1 (IEC 60584-2) |
| Thermoelectric Potential Error | ±1.0℃ (0–200℃); ±0.75% t (200–750℃) |
| Thermal Response Time (τ₅₀) | ≤2s (in air at 700℃) |
| Insulation Resistance (25℃) | ≥100 MΩ·km |
| Bending Radius | ≥10× cable diameter (static) |
| Protection Level | IP65 (silicone lead); IP67 (sheath junction) |
Product Specifications
| Item | Specification |
|---|---|
| Supply Form | Single probe (pre-assembled with plug); bulk packaging (10/50/100 pcs/carton) |
| Lead Color | Blue (standard); customizable colors |
| Junction Type | Grounded (fast response) |
| Packaging | Anti-static bag + foam insert + carton (prevents damage during shipping) |
| Customization | Sheath diameter (1–6mm); sheath length (50–500mm); lead length (0.5–10m); connector type (standard/micro); grounded/ungrounded junction |
Typical Application Scenarios
- Industrial Temperature Testing: Furnace temperature monitoring, metal heat treatment profiling, and HVAC system testing (especially in reducing atmospheres).
- Food Processing: Oven and food temperature measurement (waterproof silicone lead adapts to wet environments).
- Laboratory & R&D: General-purpose temperature sensing in research equipment and environmental chambers.
- Automotive & Electronics: Engine component testing, battery temperature monitoring, and electronic device thermal profiling.
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