Precautions for use of infrared thermometer and its industrial application
Played an important role. In the past 20 years, non-contact infrared human body thermometers have developed rapidly in technology, with continuously improved performance, enhanced functions, increasing varieties, and expanding applicability. Compared to contact based temperature measurement methods, infrared temperature measurement has advantages such as fast response time, non-contact, safe use, and long service life. Non contact infrared thermometers include three series: portable, online, and scanning, and are equipped with various options and computer software. Each series also has various models and specifications. Choosing the correct infrared thermometer model is crucial for users among various types of thermometers of different specifications. What issues should be noted when using an infrared thermometer? In order to measure temperature, align the instrument with the object to be measured, press the trigger to read the temperature data on the instrument's LCD, and ensure that the distance to spot size ratio and field of view are arranged properly.
Attention should be paid to the following issues when using an infrared thermometer:
1. Only measuring surface temperature, infrared thermometers cannot measure internal temperature.
2. Wavelength above 5um cannot be measured through quartz glass, as glass has unique reflection and transmission characteristics that do not allow for accurate infrared temperature readings. But temperature can be measured through an infrared window. Infrared thermometers are not suitable for measuring temperature on bright or polished metal surfaces (such as stainless steel, aluminum, etc.).
3. To locate hotspots, the instrument aims at the target and then performs up and down scanning movements on the target until the hotspot is determined.
4. Pay attention to environmental conditions such as steam, dust, smoke, etc. It blocks the optical system of the instrument and affects accurate temperature measurement.
5. If the thermometer is suddenly exposed to an ambient temperature difference of 20 ℃ or higher, it is allowed to adjust to the new ambient temperature within 20 minutes.
