Selecting an infrared thermometer can be broken down into three aspects:
In terms of performance indicators, such as temperature range, spot size, operating wavelength, measurement accuracy, response time, etc; In terms of environment and working conditions, such as ambient temperature, windows, display and output, protective accessories, etc; Other factors such as ease of use, maintenance and calibration performance, and price also have a certain impact on the choice of thermometer. With the continuous development of technology, the optimal design and new progress of infrared thermometers provide users with various functions and multi-purpose instruments, expanding their choices.
Determine the temperature measurement range:
The temperature measurement range is an important performance indicator of a thermometer. Each model of thermometer has its own specific temperature measurement range. Therefore, the user's measured temperature range must be considered accurately and comprehensively, neither too narrow nor too wide. According to the blackbody radiation law, the change in radiation energy caused by temperature in the short band of the spectrum will exceed the change in radiation energy caused by emissivity error. Therefore, short waves should be used as much as possible for temperature measurement.
Determine optical resolution (distance and sensitivity):
The optical resolution is determined by the ratio of D to S, which is the ratio of the distance D between the thermometer and the target to the diameter S of the measurement spot. If the thermometer must be installed far away from the target due to environmental conditions and needs to measure small targets, a high optical resolution thermometer should be selected. The higher the optical resolution, i.e. increasing the D: S ratio, the higher the cost of the thermometer.
Easy to operate and convenient to use:
Infrared thermometers should be intuitive, easy to operate, and easy for operators to use. Portable infrared thermometers are small, lightweight, and portable instruments that integrate temperature measurement and display output. They can display temperature and output various temperature information on the display panel, and some can be operated through remote control or computer software programs. In harsh and complex environmental conditions, a system with separate temperature sensors and displays can be chosen for easy installation and configuration. The signal output form that matches the current control equipment can be selected.
Calibration of infrared radiation thermometer:
Infrared thermometers must be calibrated to accurately display the temperature of the target being measured. If the thermometer used exceeds the temperature measurement tolerance during use, it needs to be returned to the manufacturer or repair center for recalibration.
