Precautions for correct selection of infrared thermometer
The choice of infrared thermometer can be divided into three aspects:
(1) Performance indicators, such as temperature range, spot size, working wavelength, measurement accuracy, window, display and output, response time, protection accessories, etc.;
(2) Environmental and working conditions, such as ambient temperature, windows, display and output, protective accessories, etc.;
(3) Other selection aspects, such as ease of use, maintenance and calibration performance, and price, also have a certain impact on the choice of thermometers.
With the continuous development of technology and technology, the best design and new progress of infrared thermometers provide users with various functional and multi-purpose instruments, expanding the choice. Other selection aspects such as ease of use, repair and calibration capabilities, and price. When choosing a thermometer model, you should first determine the measurement requirements, such as the temperature of the target to be measured, the size of the target to be measured, the measurement distance, the material of the target to be measured, the environment of the target, response speed, measurement accuracy, whether to use portable or online, etc. ; In the comparison of various existing models of thermometers, choose the instrument model that can meet the above requirements; choose the best match in terms of performance, function and price among many models that can meet the above requirements.
1. Determine the temperature range
Determine the temperature measurement range: The temperature measurement range is the most important performance index of the thermometer. Such as TI210 product coverage is -20℃-+1200℃, but this cannot be done by one type of infrared thermometer. Each type of thermometer has its own specific temperature range. Therefore, the user's measured temperature range must be considered accurately and comprehensively, neither too narrow nor too wide. According to the law of black body radiation, in the short wavelength band of the spectrum, the change of radiation energy caused by temperature will exceed that caused by emission
Therefore, it is better to use short wave as much as possible when measuring temperature. Generally speaking, the narrower the temperature measurement range is, the higher the resolution of the output signal of the temperature monitoring is, and the accuracy and reliability are easy to solve. If the temperature measurement range is too wide, the temperature measurement accuracy will be reduced. For example, if the measured target temperature is 1000 degrees Celsius, first determine whether it is online or portable.
