Omega NB1-CAIN-14U-12 thermocouple probe is engineered for accurate temperature measurement in industrial process applications. This K-type thermocouple combines a durable cast iron protection head with a spring-loaded probe assembly, providing reliable temperature sensing in demanding environments.
Overview
The NB1-CAIN-14U-12 is part of Omega’s NB1 series of industrial thermocouple probes. Designed for installation in thermowells, this sensor features a compact, robust construction suitable for steam, liquid, and gas temperature monitoring. The spring-loaded terminal block allows for easy installation and up to ½” of axial probe movement, accommodating typical thermowell tolerances.
Key Features
- K-Type thermocouple for broad temperature range coverage
- Cast iron protection head resistant to corrosion and mechanical stress
- Spring-loaded probe assembly for flexible installation
- 1/2″ NPT female mount for standard industrial thermowell connections
- Inconel 600 or stainless steel sheath options for chemical resistance
- Ungrounded probe design for noise-free signal transmission
Technical Specifications
- Temperature Range: 0 °C to 1150 °C (32 °F to 2102 °F)
- Thermocouple Type: K-Type
- Protection Head Material: Cast Iron
- Probe Material: Inconel 600 or Stainless Steel 304/316
- Mount Type: 1/2″ NPT Female
- Probe Assembly: Spring-loaded terminal block with up to 1/2″ movement
- Lead Wire: 20 AWG standard
- Output Type: mV (millivolt) thermocouple output
Typical Applications
This thermocouple probe is widely used in:
- Industrial process heating and cooling systems
- Steam and hot water temperature monitoring
- Furnace and kiln temperature control
- Heat exchanger outlet temperature sensing
- Pressure vessel and reactor temperature measurement
Compatibility & Replacements
Compatible With
- Standard industrial thermowell heads with 1/2″ NPT female connections
- Temperature controllers and data acquisition systems accepting K-type millivolt input
- Omega transmitters and signal conditioners (e.g., TX93-K2 mA converters)
- PLC analog input modules with thermocouple scaling
Replaces / Drop-In Replacement For
This probe is compatible with replacement applications for similar Omega NB1-CAIN series models with matching NPT mount and K-type specifications. For exact cross-reference, verify your existing thermowell stem length and mounting configuration before ordering. Common similar variants include NB1-CAIN-14U-18 and NB1-CAIN-14U-9 models (length variants).
Works With
- K-Type thermocouple signal input channels on industrial controllers
- Omega signal transmitters and converters
- Standard temperature measurement and logging equipment
- Analog data acquisition cards with thermocouple compensation




