With the advancement of science and technology and the development of sensor technology, temperature sensors have been widely used in many fields, but even if the sensor manufacturers strictly control the internal quality and procedures, errors will still occur occasionally. Some problems or malfunctions may occur when the temperature sensor is applied. Having a certain common sense of temperature sensor troubleshooting is also one of the necessary skills. Let's share common faults and related solutions in the temperature sensor application.

First, the output of the transmitter does not change when the temperature of the measured medium rises or falls. This situation is generally due to the sealing problem of the temperature sensor. It may be because the temperature sensor is not sealed well or the sensor is accidentally welded during welding. Small holes, this situation is usually solved by replacing the sensor housing. Second, the output signal is unstable. This reason is the temperature source's ability. The temperature source itself is an unstable temperature. If the display of the meter is unstable, it is the reason that the anti-interference ability of the meter is not strong.

Third, the output error of the transmitter is large. Generally, there are many reasons for this situation. It may be that the resistance wire of the selected temperature sensor is wrong, which will cause the range error, or it may be that the sensor is not calibrated when it leaves the factory.

It is rare that the temperature sensor fails. It is usually carefully tested when leaving the factory. These conditions can be avoided. Therefore, the temperature sensor needs to be inspected when it leaves the factory. Customers can also ask the sensor manufacturer for factory testing. Report for reference.