Common faults and solutions of online infrared thermometer
Common faults of online infrared thermometers and their solutions As we all know, industrial production is inseparable from precision instrument online thermometers to monitor the temperature of objects. 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 signals output by infrared thermometers are processed by relevant circuits and converted into some standard signal outputs, 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:
1: 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. It may be that the online infrared thermometer is not sealed well, or A small hole was accidentally welded to the infrared thermometer during welding. Generally, it is necessary to replace the shell of the infrared thermometer to solve this situation.
2: 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 the new infrared thermometer selected. The linear change range of the thermometer is inconsistent with the original one, resulting in a sensitivity error. 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.
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. The instrument monitors 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. Of course, the reasons listed here are only some of the reasons, which are more common. In actual use, it is also necessary to understand the type and application characteristics of the online infrared thermometer in order to make better use of it.
