Common faults and solutions of fixed infrared thermometer
Common faults of fixed infrared thermometers and their solutions Online infrared thermometers are very mature and are 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. There may be some small faults in the supporting use, here are some common faults and their solutions:
Solution 1 for the thermometer: the output error of the online infrared thermometer is large. In this case, there are many possible reasons. If the online infrared thermometer in the online infrared thermometer is replaced, it may be a choice The linear change range of the new infrared thermometer is inconsistent with the original one, resulting in sensitivity errors. Usually, recalibration is required after changing the infrared thermometer. Of course, the output error of the online infrared thermometer is large, and it may also be that the infrared thermometer was not calibrated when it left the factory, and it is enough to recalibrate at this time.
Solution 2 of the thermometer: When the temperature of the measured medium rises or falls, the output of the online infrared thermometer does not change. This situation is mostly due to the sealing problem of the online infrared thermometer, which may be caused by the online infrared thermometer. It is not sealed well, or a small hole is accidentally welded to the infrared thermometer during welding. In this case, it is generally necessary to replace the outer shell of the infrared thermometer to solve it.
Thermometer Solution 3: The output signal of the online infrared thermometer is unstable. This reason is caused by the temperature source itself. Many temperature sources themselves generally do not have a constant temperature. Observe it under, 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.
