Description
J-Type Thermocouple is a high-performance industrial temperature sensor designed for accurate and dependable temperature measurement in low to medium-temperature industrial processes. Constructed using Iron (positive) and Constantan (negative) conductors, this thermocouple provides excellent sensitivity, fast response time, and reliable performance across a temperature range of 0°C to 600°C.
J-Type Thermocouples are widely recognized for their superior performance in reducing and inert atmospheres, where the iron sensing element offers stable operation compared to chromium-based thermocouple types. With a high thermoelectric sensitivity of approximately 50–55 µV/°C, the J-Type generates one of the strongest signal outputs among common base-metal thermocouples, enabling precise temperature measurement and improved process control.
The Model AJIS features a corrosion-resistant SS316 stainless steel sheath, providing excellent mechanical strength and durability in demanding industrial environments. Its adjustable 1/2″ BSP process connection allows flexible installation and accurate insertion depth adjustment, making it suitable for a wide variety of industrial equipment and process vessels. The rugged IP67-rated die-cast aluminium terminal head protects internal electrical connections against dust, moisture, and harsh operating conditions.
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Key Features
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Iron-Constantan Chemical Stability Highly effective and resilient when deployed inside reducing, vacuum, or inert process environments up to 600°C.
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Maximum Baseline Sensitivity (~50–55 µV/°C) Delivers a strong millivolt signal per degree, minimizing data corruption from factory electrical noise.
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Sliding Adjustable 1/2″ BSP Fitting The integrated compression connector allows technicians to adjust the immersion depth directly on the line.
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Balanced 650 mm Probe Profile The 6 mm OD stainless steel sheath provides a rapid thermal response time while maintaining long-term structural rigidity.
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Corrosion-Resistant SS316 Casing Protects the internal iron filament from ambient atmospheric moisture, preventing rust and early element breakdown.
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Weatherproof IP67 Enclosure Toughened die-cast aluminum terminal housing blocks heavy humidity, wash-down spray, and fine process dust.
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Simplex 2-Wire Operational Circuit A clean, low-maintenance single-junction assembly that connects easily with standard field instrumentation loops.
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Cost-Effective Thermal Tracking Delivers high-precision performance within its engineered thermal window without the added cost of exotic alloys.
Applications
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Plastics, Rubber, and Injection Molding Direct, fast-response temperature control for extrusion barrels, die heads, and forming molds.
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Low-to-Medium Heat Treatment Furnaces Precise monitoring inside atmosphere-controlled tempering ovens, annealing boxes, and drawing lines.
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Food Processing and Industrial Baking Reliable temperature regulation across commercial ovens, drying chambers, and large pasteurization vats.
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HVAC and Plant Utility Networks Continuous monitoring of low-pressure steam lines, central boiler exhausts, and hot water distribution manifolds.
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Laboratory Testing and R&D Systems High-sensitivity monitoring for analytical test benches, pilot plants, and experimental reactors.
Datasheet
FAQs
1. What is a J-Type Thermocouple?
A J-Type Thermocouple is a temperature sensor made from Iron and Constantan conductors. It accurately measures temperatures from 0°C to 600°C and is commonly used for industrial heating, laboratory equipment, plastics processing, heat treatment, and general industrial process temperature monitoring.
2. Why choose a J-Type Thermocouple?
J-Type Thermocouples provide high sensitivity, fast response time, and excellent performance in reducing or inert atmospheres. They are a cost-effective solution for medium-temperature industrial applications that require reliable, repeatable, and accurate temperature measurement with long-term stability.
3. Where are J-Type Thermocouples used?
J-Type Thermocouples are widely used in plastics and rubber processing machinery, industrial furnaces, food processing plants, HVAC systems, laboratory testing, heat treatment equipment, chemical processing plants, packaging machinery, and industrial automation systems for precise process temperature monitoring.
4. Why choose Aavad Instrument J-Type Thermocouple?
Aavad Instrument Pvt. Ltd. J-Type Thermocouples are manufactured using premium-quality raw materials and stringent quality control standards to ensure excellent accuracy, durability, and long operational life. Our thermocouples are engineered for reliable performance in demanding industrial environments and can be customized with various sheath materials, process connections, insertion lengths, cable types, and terminal head configurations to meet specific application requirements.
