


LRB Bayonet Thermocouple Sensor
LRB Bayonet Thermocouple is a 90-degree bend temperature sensor used for industrial temperature measurement where straight sensor installation is not suitable. It comes with a spring-loaded bayonet cap for easy fitting and removal, and is commonly used in machinery, plastic processing equipment, process equipment, and industrial heating applications.
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LRB Bayonet Thermocouple is a specially designed thermocouple temperature sensor used when the application requires a 90-degree bend installation. The LRB design makes it suitable for machines and process equipment where space is limited or where the sensor needs to be mounted at an angle.
This sensor is commonly used for measuring temperature in industrial applications. It is available in K type, J type, E type, and RTD options. The spring-loaded bayonet cap helps in easy installation and removal from the process or equipment being monitored.
The sensor can be supplied with grounded or ungrounded junction depending on the application requirement. It is also available with wire lengths from 0.5 meter to 10 meter, making it suitable for different machine layouts.
B. Working Principle
The LRB Bayonet Thermocouple works on the thermoelectric principle. When two different metal wires are joined at the sensing tip and exposed to temperature, they generate a small voltage. This voltage changes according to the temperature at the measuring point.
The generated signal is sent to a temperature controller, indicator, or PLC. The controller then displays or controls the temperature based on the thermocouple signal.
In the LRB bayonet design, the sensing tip is inserted into the machine or process point. The spring-loaded bayonet cap keeps the sensor properly fitted and ensures stable contact during operation. This helps in reliable temperature measurement, especially in machinery where vibration or movement may be present.
C. Why It Is Used
LRB Bayonet Thermocouple is used when the application needs accurate temperature measurement but does not allow straight sensor mounting. The 90-degree bend design makes installation easier in compact or difficult spaces.
It is used because:
The 90-degree bend helps in side-entry installation.
The bayonet cap allows quick fitting and removal.
The spring-loaded design helps maintain proper sensor contact.
It is suitable for industrial machinery and process equipment.
It can be supplied in K, J, E, and RTD types.
It supports a temperature range from -50 to 600°C.
It is available with grounded and ungrounded junction options.
It is useful where regular maintenance or sensor replacement is required.
D. Suitable Buyers
LRB Bayonet Thermocouple is suitable for:
Plastic machinery manufacturers
Injection molding machine users
Extruder machine users
Industrial heater manufacturers
Packaging machinery manufacturers
Process equipment manufacturers
OEM machine builders
Maintenance departments
Automation panel manufacturers
Temperature controller suppliers
Industrial furnace and oven users
Electrical and instrumentation contractors
Factories using temperature-controlled machinery
FAQ
1. What is an LRB Bayonet Thermocouple?
LRB Bayonet Thermocouple is a temperature sensor with a 90-degree bend and bayonet locking arrangement. It is used for temperature measurement in industrial machinery and process equipment.
2. Where is LRB Bayonet Thermocouple used?
It is commonly used in plastic machinery, injection molding machines, extruders, industrial heaters, packaging machines, and process equipment where angled sensor installation is required.
3. Why is a 90-degree bend used in this thermocouple?
The 90-degree bend is used when straight installation is not possible due to space limitation, machine design, or mounting position.
4. What temperature range does this sensor support?
This LRB Bayonet Thermocouple supports a temperature range from -50 to 600°C.
5. Which sensor types are available?
It is available in K type, J type, E type, and RTD options.
6. What is the tip size of this thermocouple?
The tip diameter is 5 mm, and the tip length is available from 10 mm to 100 mm.
7. What wire length options are available?
Wire length is available from 0.5 meter to 10 meter, depending on the application requirement.
8. What is the difference between grounded and ungrounded junction?
A grounded junction gives faster response because the sensing element is connected to the sheath. An ungrounded junction provides better electrical isolation and is useful where electrical noise can affect measurement.
9. Is this sensor easy to install?
Yes, the spring-loaded bayonet cap makes installation and removal easy. It is useful in applications where the sensor may need regular maintenance or replacement.
10. Can this sensor be used with a temperature controller?
Yes, LRB Bayonet Thermocouple can be connected to a temperature controller, temperature indicator, PLC, or control panel for monitoring and controlling temperature.




