What Is a Temperature Calibrator?
A Temperature Calibrator Is a Device for Calibrating Thermocouples, Thermistors, Etc.
Temperature calibrators are devices used to calibrate instruments that measure temperatures, such as thermocouples and thermistors. Devices that measure temperature, such as thermocouples, may differ from the actual temperature displayed due to age-related deterioration or dirt on the sensor. To prevent such incorrect values from being indicated, calibration is performed using a temperature calibrator.
The Temperature Calibrator to Be Used Depends on the Type of Thermometer
The temperature calibrator to be used depends on the type of thermometer to be calibrated. A drywell temperature calibrator is used to calibrate thermocouples and thermistors, while a blackbody furnace is used to calibrate non-contact thermometers such as thermal cameras.
Uses of Temperature Calibrators
Used for Inspection of Thermometers Used in the Field
Temperature calibrators are used in various industries, as thermometers are used in manufacturing daily. Temperature control is crucial in the manufacturing process. Product quality and process safety can be negatively affected if the thermometer reading differs from the actual temperature. Therefore, thermometers used in the field are regularly inspected and calibrated.
Also Used in the Calibration of High-Temperature Thermometers Used in the Manufacture of Ceramics and Inorganic Materials
Temperature calibrators are used in various situations, from the calibration of thermometers used in the manufacture of organic materials at temperatures ranging from room temperature to 100°C to the calibration of temperatures used in the manufacture and processing of ceramics and inorganic materials, which can exceed 1000°C. Temperature calibrators are used in a wide range of temperature ranges.
Features of Temperature Calibrators
Temperature Calibrators Are Equipped With a Heat Source
Temperature calibrators are equipped with a heat source and a screen that displays the temperature. A thermometer needing calibration, such as a thermocouple, is attached to a heat source maintained at a specific temperature. Temperature calibration is performed by comparing the temperature displayed on the calibrator with the temperature of the thermometer. Temperature calibrators differ depending on the type of thermometer. A drywell temperature calibrator is used for contact thermometers, such as thermocouples and thermistors. In contrast, an infrared blackbody furnace is used for non-contact thermometers such as thermal cameras and pyrometers.
Compact Temperature Calibrators Are Available but Be Careful About the Installation Environment
Some temperature calibrators are small and portable, so they can be used for temperature calibration in the field. Since the heat source must be kept at a constant temperature during temperature calibration, care must be taken in the installation environment. It is recommended that calibration be performed multiple times and that temperature calibration be performed after determining the magnitude of the error contained. In addition, since the frequency of thermometer calibration varies depending on the temperature and environment to be measured, it is essential to perform temperature calibration at an appropriate frequency according to the process.