Overview
The Pyromation JBA3U-F3B072-4 is a Type J immersion thermocouple engineered for demanding industrial automation and process control applications. This model combines spring-adjustable depth control with a robust 72-inch stainless steel braided cable assembly, offering dependable temperature sensing across a wide operating range. The ungrounded junction design minimizes electrical noise and cross-talk, making it suitable for control systems requiring clean analog signals.
Key Features
- Type J Thermocouple Element: Iron/constantan wire pair rated for -346°F to +1,400°F (-210°C to +760°C) continuous operation
- Bayonet-Style Mounting: Quick-connect, variable-depth immersion for flexible installation in process tanks and process vessels
- 316 Stainless Steel Sheath: Corrosion-resistant protection in aggressive and high-temperature industrial environments
- 72-Inch Stainless Steel Braid: Durable jacket provides mechanical protection and EMI shielding
- Ungrounded Junction: Isolated thermocouple element reduces electrical noise in PLC and recorder inputs
- Standard Male Connector Plug: Compatible with industry-standard thermocouple input modules and temperature controllers
Technical Specifications
- Thermocouple Type: Type J (Iron/Constantan)
- Probe Diameter: 1/8 inch
- Sheath Material: 316 Stainless Steel
- Cable Length: 72 inches (6 feet)
- Cable Sheath: Stainless Steel Braid
- Junction Type: Ungrounded
- Mounting Style: Bayonet (spring-adjustable immersion)
- Connection: Standard male plug
- Temperature Range: -346°F to +1,400°F (-210°C to +760°C)
- Accuracy: ±2.2°C or ±0.4% (per NIST standards)
Typical Applications
The JBA3U-F3B072-4 is ideal for use in:
- Industrial process heating and cooling systems
- Plastic injection molding equipment temperature monitoring
- Heat treatment furnaces and ovens
- Batch tank and vessel temperature sensing
- PLC-based temperature data acquisition and control
- Industrial automation systems requiring analog temperature input
Compatibility & Replacements
Compatible With
- Allen-Bradley CompactLogix and ControlLogix PLC analog input modules
- Siemens S7-1200/S7-1500 PLC systems with analog input cards
- Mitsubishi FX and Q-series PLC temperature input modules
- Omron CJ-series and NX-series controllers with thermocouple inputs
- Standard industrial temperature controllers and data recorders
- Any control system with Type J thermocouple input capability
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Pyromation thermocouple part numbers in the JBA3 series with identical sheath material and connection type may be interchangeable; consult technical documentation to confirm exact specifications.
Works With
- Studio 5000 (Logix Designer) PLC programming software
- TIA Portal (Siemens) for thermocouple input configuration
- EtherNet/IP industrial networks with analog gateways
- PROFINET systems via temperature gateway modules
- Modbus RTU/TCP temperature transmitters and nodes
- Standard 4-20mA transmitter interface converters





