Fluke 56X User Manual download pdf (Page 24)

56x

Users Manual

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 5).

Reflected energy

Emitted

Energy

Transmitted

energy

Target

eyl002f.eps

Figure 5. 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 K-type thermocouple probe for contact measurement. Be sure to consider

distance-to-spot size ratio and field of view (see “Distance and Spot Size” and

“Field of View”). The temperature appears on the display.

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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Fluke 56X User Manual Page 24