How to use the infrared rangefinder_How to use the infrared rangefinder
How to use the infrared range finder
The method of using the infrared range finder is: first put the infrared range finder in front of you, press and hold the red triangle key on the machine with your right hand to lock the target to be ranged, and then press it again to accurately measure the distance between yourself and the target. After the distance is measured, the display screen on the tester will also show the value of the test distance.
Generally, infrared rangefinders are used with laser configurations, so refer to the instructions of the rangefinder during use, and avoid pointing the thank you mouth directly at the eyes, as the laser will cause great damage to the eyes. In addition, the general infrared range finder does not have waterproof function, so you should pay attention to waterproof when using it.
Infrared Rangefinder Instruction Manual
Generally, infrared rangefinders are used with laser configurations, so refer to the instructions of the rangefinder during use. The following is the instruction manual of the infrared rangefinder:
1. Install the instrument
First place the theodolite on the measuring station, center and level it. Then place the rangefinder host on the theodolite bracket, and insert the battery into the battery box seat under the host. Place the reflective prism at the target point, center it, and then align the prism with the direction of the host.
2. Observe the vertical angle and meteorological elements
Use the theodolite telescope to aim at the center of the prism target plate, center the bubble of the level tube of the vertical plate indicator (this operation will not be performed if there is an automatic compensation device for the vertical plate indicator), read and record the reading of the vertical plate, and calculate the vertical angle. Then read the thermometer and barometer.
3. Determine the temperature measurement range
The temperature measurement range is the most important performance index of the thermometer. Each type of thermometer has its own specific temperature range. Therefore, the user's measured temperature range must be considered accurately and comprehensively, neither too narrow nor too wide. According to the law of black body radiation, in the short wavelength band of the spectrum, the change of radiant energy caused by temperature will exceed the change of radiant energy caused by emissivity error.
4. Determine the target size
Infrared thermometers can be divided into single-color thermometers and two-color thermometers (radiation colorimetric thermometers) according to the principle. For a monochromatic thermometer, when measuring temperature, the area of the target to be measured should fill the field of view of the thermometer. It is recommended that the measured target size exceed 50% of the field of view.
