How to judge whether Tantalum Lined Thermowell is damaged

To judge whether Tantalum Lined Thermowell is damaged, you can start from the following aspects.
Appearance inspection is the first step. Carefully check the surface of the casing. If there are obvious scratches, dents or cracks, this is most likely a sign of damage. Especially after a collision or external impact, you should pay more attention to these parts. At the same time, pay attention to whether the tantalum lining is peeling off or bulging. Once it occurs, it means that the lining is damaged and affects its performance.
Performance testing is also very critical. Install the Tantalum Lined Thermowell into the temperature measurement system and observe its measurement data. If the deviation from the actual temperature is too large and the fault of the temperature measuring element itself is excluded, it may be that the casing is damaged and affects the heat conduction, resulting in inaccurate measurement. For example, in an environment with known stable temperature, the measured value fluctuates abnormally, and it is likely that the casing is damaged.
Non-destructive testing methods can more accurately determine the internal situation. Ultrasonic flaw detection is used to transmit ultrasonic waves and receive reflected waves. If there is an abnormal reflection signal, it indicates that there may be defects inside the casing. X-ray testing can also effectively detect internal cracks, pores and other problems. In addition, if the wall thickness of the casing is measured and it is found that the local wall thickness is significantly thinner, it may be caused by corrosion or wear, which also means that the casing is damaged. Regularly combining these methods can accurately determine the status of Tantalum Lined Thermowell in a timely manner to ensure its normal operation.
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