Type J Thermocouple, 3/16in OD, 24in Probe, 36in Teflon Leads

Type J Thermocouple Probe | 3/16" Diameter, 24" Length, 36" Teflon Leads

Product Overview

This Type J Thermocouple is a versatile and reliable temperature-sensing device, ideal for a wide range of industrial and commercial applications. Thermocouples are the industry standard for temperature measurement due to their simplicity, durability, and wide operating range. This model features a robust 3/16-inch outer diameter probe and a generous 24-inch length, offering flexibility for various installation depths.

Operating Principle

Thermocouples operate by converting thermal energy into a measurable electrical signal. This device consists of a welded "hot" junction where two dissimilar metal wires (Iron and Constantan for Type J) are joined. When this junction is heated, a temperature gradient is created along the wires, generating a predictable millivolt signal (Electromotive Force or EMF). This signal is then measured at the "cold" or reference end and converted by a process controller or recorder into a precise temperature reading.

This specific model features an ungrounded junction, which provides a slower response time but isolates the thermocouple from electrical noise and stray voltages, ensuring a clean and stable signal, which is crucial for sensitive applications.

Key Features and Specifications

• Thermocouple Type: Type J (Iron/Constantan)
• Probe Diameter: 3/16 inch (0.1875")
• Probe Length: 24 inches
• Probe Material: Stainless steel sheath for corrosion resistance and durability.
• Junction Type: Ungrounded (Ung.) Junction for improved electrical isolation.
• Probe Temperature Range: 0°C to 760°C (32°F to 1400°F)
• Leads: 36-inch Teflon® insulated lead wires for flexibility and resistance to moisture, chemicals, and abrasion.
• Max Lead Wire Temperature: 204°C (400°F) Continuous
• Wire Color Code: Red (-) / White (+) per ANSI/ASTM E230 standards.
• Transition: Standard transition with spring strain relief to protect lead wires at the exit point.
• Termination: 2-inch stripped ends for easy connection to instrumentation or terminal blocks.

Applications

Type J thermocouples are a cost-effective solution for monitoring temperatures in various settings, including:

• Plastics and rubber processing (injection molding, extrusion)
• Heat treating and annealing
• Industrial equipment monitoring
• HVAC systems
• Power generation
• Food and beverage processing

About Pyromation

Pyromation is a leading manufacturer of high-quality temperature sensors. We produce a wide range of thermocouples, including Magnesium Oxide (MgO), industrial, and general-purpose types. We also specialize in custom assemblies for hazardous locations and applications requiring connection heads, protection tubes, thermowells, and integrated transmitters to meet your specific needs.