Frequently Asked Questions
What is a Thermowell?
A Thermowell is a metallic enclosure that surrounds a temperature sensor. Its primary function is to protect the
sensor from corrosion, contamination, and extreme thermal fluctuations. The Thermowell is placed in a specific
slot or tube to encircle the temperature sensor, allowing for a safe relationship between the sensor and the
environment.
What is a Protection Tube?
A Protection Tube (also known as a Thermal Insulation Sleeve) is a metallic enclosure that surrounds the end of a
temperature sensor to protect it. The Protection Tube is used to isolate the sensor from corrosion, contamination,
and extreme thermal fluctuations.
A Thermocouple (also known as a Temperature Probe or Thermal Couple) is a type of temperature sensor used to
measure extreme temperatures in a wide range of applications. It is one of the most common and accurate methods
for measuring temperatures in environments with extreme conditions.
How it works?
A Thermocouple consists of two metal connectors joined at one end, typically made of high-resistance materials.
The connectors are placed in contact with the object being measured (e.g., a pipe, surface or fluid). When the
connectors come into contact with the object, an electric current is generated due to the temperature difference
between them. The current is measured and used to calculate the object's temperature.
How an RTD Works
An RTD (Resistance Temperature Differential) is a type of temperature sensor used to measure precise and stable
temperatures in various applications.
Components of an RTD
A typical RTD consists of three components:
- Metallic conductor: The metallic conductor is the main component of the RTD. A material with specific
thermal properties is used, such as a semiconductor crystal or ferromagnetic material. - Reference point: The reference point is the temperature at which the resistance of the metallic conductor
is measured. A stable and known temperature is used to calibrate the RTD. - Thermal sensor: The thermal sensor is the component that detects changes in the temperature of the metallic
conductor.