Introduction to common problems and solutions of infrared thermometers

Introduction to common problems and solutions of infrared thermometers The instrument is very mature, and it is very common in factories.
The online infrared thermometer is usually used in conjunction with the instrument, and often appears in the form of a transmitter, 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 matching use.
Here are several common fault phenomena and their solutions: 1: When the temperature of the measured medium increases or decreases, the output of the online infrared thermometer does not change.
In this case Most of the problems are caused by the sealing of the online infrared thermometer.
It may be that the online infrared thermometer is not sealed properly, or a small hole is accidentally welded to the infrared thermometer during welding.
In this case, the infrared thermometer needs to be replaced.
The thermometer shell can solve it
.

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 a new infrared thermometer selected.
The linear change range of the thermometer is inconsistent with the original one, resulting in wrong sensitivity.
Usually, the infrared thermometer needs to be re-calibrated after changing it
.

Of course, the output error of the online infrared thermometer is large.
It is also possible that the infrared thermometer has not been calibrated when it leaves the factory
.

 　　3: The output signal of the online infrared thermometer is unstable.
This is because of the temperature source itself.
Many temperature sources themselves are generally not constant temperatures.
The instrumentation 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 part of the reasons, and they are all more common
.

In actual use, it is also necessary to understand the type and application characteristics of the online infrared thermometer before it can be used
.

 　　The above is an introduction to the common problems i of infrared thermometers and the treatment methods.
I believe that everyone has a corresponding understanding of this after reading, and I hope it will be helpful to everyone
.