General Laboratory Instrument--Measurement Method of Infrared Thermometer
1. Only the surface temperature is measured. Infrared thermometers cannot measure internal temperatures.
2. Do not measure temperature through glass. Glass does not reflect and transmit differently than other materials, thus affecting the resulting infrared temperature reading.
3. It is recommended not to use infrared thermometers to measure bright or polished metal surfaces (stainless steel, aluminum, etc.).
4. Pay attention to the environmental conditions. Steam, dust, smoke, etc. obscure the lens and prevent accurate measurements.
5. Pay attention to the ambient temperature. If the thermometer encounters a sudden environmental temperature difference of more than 10 degrees, let the instrument adapt to the new ambient temperature for at least 20 minutes.
6. Different objects use different emissivity.
