Common faults of fixed infrared thermometers and their solutions
Common faults of fixed infrared thermometers and their solutions. Online infrared thermometers are very mature and very common in factories. Online infrared thermometers are usually used in conjunction with instruments, and often appear in the form of transmitters. , that is, the signal output by the infrared thermometer is processed by the relevant circuit and converted into some standard signal output, such as 0---5V voltage, or 4---20mA output. Some minor faults may occur during supporting use. Here are several common fault phenomena and their solutions:
Thermometer solution one: The output error of the online infrared thermometer is large. In this case, there are many possible reasons. If the online infrared thermometer is replaced by an online infrared thermometer, it may be better to use The linear variation range of the new infrared thermometer is inconsistent with the original one, resulting in sensitivity errors. Usually, the infrared thermometer needs to be recalibrated after changing. Of course, the output error of the online infrared thermometer is large. It is also possible that the infrared thermometer was not calibrated when it left the factory. In this case, it can be recalibrated.
Thermometer solution two: When the temperature of the measured medium increases or decreases, the output of the online infrared thermometer does not change. This situation is mostly caused by the sealing problem of the online infrared thermometer. It may be caused by the online infrared thermometer. It is not sealed properly, or a small hole was accidentally welded into the infrared thermometer during welding. This situation generally requires replacing the infrared thermometer shell.
Thermometer solution three: The output signal of the online infrared thermometer is unstable. This reason is due to the temperature source itself. Many temperature sources themselves are generally not at a constant temperature. If conditions permit, it can be kept at room temperature indoors. Important conditions Observe down and use other instruments to monitor whether the output signal of the infrared thermometer is stable. If only the instrument display is unstable, it means that the anti-interference ability of the display instrument is not strong.
However, the reasons listed here are only some of the common ones. In actual use, you also need to know the type and application characteristics of online infrared thermometers in order to make better use of them. Jintaike Technology provides you with common faults and solutions of online infrared thermometers, hoping to help everyone.
