2. The output signal of infrared thermometer is unstable: this reason is the temperature source itself. The temperature of many temperature sources is usually not constant. If possible, the output signal of infrared thermometer can be observed under the important conditions of indoor room temperature, and other instruments can be used to monitor whether it is stable. If only the instrument display is unstable, it is that the anti-interference ability of the display instrument is not strong.
Matters needing attention in using infrared thermometer
1, only the surface temperature is measured, and the infrared thermometer cannot measure the internal temperature.
2. When the wavelength is above 5um, it is not allowed to measure the temperature through the timely glass, because the glass has very special reflection and transmission characteristics, and accurate infrared temperature reading is not allowed, but the temperature can be measured through the infrared window. It is best not to use infrared thermometer to measure temperature on bright or polished metal surfaces (stainless steel, aluminum, etc.). ).
3. Locate hot spots. To find the hot spot, aim the instrument at the target, and then scan it up and down until the hot spot is determined.
4. Pay attention to environmental conditions: steam, dust, smoke, etc. , blocking the optical system of the instrument and affecting the accurate measurement of temperature.
The above contents refer to Baidu Encyclopedia-Infrared Thermometer.