Fluke Thermometer 576 - Manual (Page 16)

16
576
Emissivity - Unknown Value
To adjust the unit’s emissivity value for a
material with unknown emissivity, plug in the
probe.
Pull the unit’s trigger. Place the measuring
tip of the probe on the area to be measured.
Wait for the reading to stabilize.
Release the trigger.
Note the indicated probe temperature reading.
Pull the trigger again. Measure the same area
using infrared measurement.
Press the emissivity button. Use the Up and
Down keys to select the material name “Free”
which will be shown in the display. Press the
emissivity button again until the emissivity sign
flashes. Use the arrow keys to change the
emissivity value until the temperature matches
the probe’s reading.