Infrared Thermometers
How the Thermometers Work
How the Thermometers Work
Infrared thermometers measure the surface temperature of an object. The thermometer’s optics sense emitted, reflected, and transmitted energy, which is collected and focused onto a detector. The unit’s electronics translate the signal into a temperature reading which the unit displays (see Figure 3).
Reflected energy
Target
Transmitted energy
Emitted
Energy
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Figure 3. How the Thermometer Works
Operating the Thermometer
Temperature Measurement
To measure temperature, point the thermometer at an object and pull the trigger. You can use the laser pointer to help aim the thermometer. You may also insert the
Note
The laser is used for aiming purposes only and is not related to temperature measurement.
The thermometer features an auto off function that automatically powers down the thermometer after 20 seconds of inactivity. To turn the thermometer on, pull the trigger.
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