1. Point the IR-probe towards a surface with a constant temperature, e.g. the black surface on top of the Scanner table.
2. Click on the Meas. Heat tab.
3. In the Measure Continuously box, click on the button Measure Now button.

4. Make notes on the temperature reading on the screen and the temperature reading on the LCD display of the IR-probe.
5. Calculate the new offset factor using this formula:
SCR = temperature shown on the screen.
LCD = temperature shown on the LCD display of the IR-probe
New calibration offset = LCD - SCR + old calibration offset.
6. Click on the Config tab.
In the Scanner box, click on the Edit button to show the next dialog box.

7. Enter the new Heat Calibration gain.
8. Click on the Save button.
9. Click on the Close button.
10. Repeat the procedure until the temperature reading on the screen and the temperature reading on the LCD display of the IR-probe are equal.