TJ36-44004

Supported Applications

The Omega TJ36-44004 series comprises Transition Joint-Style Thermistor Probes designed for immersion applications. These probes feature a metal transition joint and are intended to measure temperature in liquid or gaseous media where the sensor element is inserted into the process.

Operating Conditions & Performance

The TJ36-44004 series operates within two primary maximum temperature limits depending on the selected thermistor option: 150°C (302°F) or 75°C (167°F). Accuracy is specified as ±0.2°C for standard options and ±0.1°C for high-tolerance selections, with tolerance ranges defined at 0 to 70°C or at 25°C depending on the specific thermistor model.

Standard configurations utilize a sheath constructed of 316 Stainless Steel. The probes are available in three standard diameters: 3 mm (⅛ in), 4.5 mm (⅜ in), and 6 mm (¼ in). Standard cable length is provided as 1 m (40").

Configuration Options

The series supports a wide range of configurations through model number customization, allowing engineers to select specific thermistor elements, sheath dimensions, and lead terminations.

• Thermistor Selection: The series offers five resistance values at 25°C: 2252 Ω, 3000 Ω, 5000 Ω, 10000 Ω, and 30000 Ω. These are available in two tolerance classes (±0.1°C or ±0.2°C) corresponding to the maximum temperature ratings of 75°C (167°F) or 150°C (302°F).
• Sheath Dimensions: Standard sheath lengths range from 2 to 12" (or 50 to 300 mm). Lengths longer than 12" (300 mm) are available by modifying the model number.
• Cable and Termination: The standard cable is 26 AWG stranded, PFA insulated and jacketed. Standard termination consists of stripped leads. A phone plug option is available by adding "-PP" to the model number. Cable lengths exceeding 1 m (40") are configurable.
• Model Numbering: The base format follows TJ36-44004-<SHEATH_DIAMETER>-<SHEATH_LENGTH>, with the thermistor number inserted into the model string to define resistance and tolerance characteristics (e.g., 44004, 44005).

Key Product Differences

Variants within the TJ36-44004 series are distinguished by their thermistor element selection, which dictates both resistance and maximum operating temperature. Models ending in digits such as 44004 through 44008 provide a maximum temperature of 150°C (302°F) with ±0.2°C tolerance. Conversely, models designated 44030 through 44033 offer higher precision at ±0.1°C but are limited to a maximum temperature of 75°C (167°F).

Physical variations include the choice between imperial and metric sheath dimensions in the model number string, as well as the inclusion or exclusion of the phone plug termination option.