How to set up an infrared thermometer
The thermometer will turn on when the trigger is pressed or the yellow switch is pressed. If no activity is detected within 6-8 seconds, the thermometer will automatically turn off. When measuring temperature, aim the thermometer at the target, pull up and hold the trigger down. Release the trigger to maintain the temperature reading. Be sure to consider the ratio of distance to spot size and field of view. Laser is only used to aim at the cold spot of the target object.
1. Find the cold spot or heat source, align the thermometer with the target area, and scan the entire area up and down until the heat source or cold spot is found;
As the distance from the measured target increases, the size of the light spot in the area measured by the instrument becomes larger. light
The dot size represents 90% of the energy within the circle. When the distance between the thermometer and the target is 1000 mm and a light spot size of 20 mm is generated, the maximum light distance ratio can be achieved.
3. Ensure that the target is larger than the size of the light spot; The smaller the target, the closer it should be.
Principle of Infrared Thermometer 1
Infrared principle
Any object with a temperature above absolute zero (-273 ℃) emits thermal radiation to the outside. The energy radiated varies depending on the temperature of the object, and the wavelength of the radiation wave is also different. However, infrared radiation is always included. For objects below a thousand degrees Celsius, the strong electromagnetic waves in their thermal radiation are infrared waves. Therefore, measuring the infrared radiation of the object itself can accurately determine its surface temperature, which is the objective basis for infrared thermometer temperature measurement.
working principle
The non-contact infrared thermometer consists of an optical system, a photodetector, a signal amplifier, signal processing, display output, and other components. The optical system gathers the infrared energy radiated by the target object, focuses it on the photodetector, and converts it into a corresponding electrical signal. After passing through the circuit operation and processing circuit, it is converted into a linear temperature signal value of the measured target for further signal processing and control.
