Correct use of handheld infrared thermometers?
The convenience of handheld infrared thermometers is liked by many manufacturers and users. Therefore, handheld infrared thermometers are becoming more and more popular, and they are widely used in daily life and industry. But with the widespread use of handheld infrared thermometers, how to use them correctly has also become a problem. If the infrared thermometer cannot be used correctly, it will not be able to maximize its role, and it will also affect the measurement results, so this is very important.
First, when the handheld infrared thermometer measures the temperature of the object to be measured, the infrared thermometer should be aimed at the object to be measured, and ensure that the ratio of the measurement distance to the spot size meets the field of view requirements, not too close, nor too far. Then press the trigger button, and the measured temperature data can be read out on the LCD display of the instrument.
Second, there are five important things to keep in mind when measuring temperature with a handheld infrared thermometer.
1. Ambient temperature. If the infrared thermometer is suddenly exposed to an ambient temperature of 20°C or higher, allow the instrument to adjust to the new ambient temperature within 20 minutes or so.
2. Only the surface temperature of objects can be measured. Infrared thermometers cannot measure the internal temperature of objects.
3. Pay attention to environmental conditions. For example, steam, dust, smoke, etc. will block the optical system of the instrument and affect accurate temperature measurement.
4. Locate hotspots. To find a hot spot, first use the instrument to aim at the target, and then scan up and down on the target until the hot spot is identified.
5. Hand-held infrared thermometers cannot measure temperature through glass. Glass has very special reflection and transmission characteristics and cannot perform accurate temperature readings, but it can measure temperature through the infrared window. Infrared thermometers are best not used for temperature measurement on bright or polished metal surfaces, such as stainless steel, aluminum, etc.
Hand-held infrared thermometer, also known as portable infrared thermometer, is a small and portable infrared thermometer. The principle used by the hand-held infrared thermometer is to convert the radiant energy of the infrared ray emitted by the object into an electrical signal. The size of the infrared radiant energy corresponds to the temperature of the object itself. According to the size of the converted electrical signal, the object ( Such as molten steel) temperature. The handheld infrared thermometer is composed of optical system, photoelectric detector, signal amplifier, signal processing, display output and other parts. Hand-held infrared thermometers are convenient, accurate and safe, and are widely used in medical treatment and equipment fault diagnosis.
