How To Calibrate Infrared Thermometer Gun. Add a little clean water until the glass is full and stir. Place the comparator pot in the area you wish to check the temperature of and leave for 15/30 minutes until the temperature is stable.
The calibration should now be complete. Place the reference thermocouple on the surface of the blackbody calibration cavity. Connect the thermometer to the pot and turn on.
Stand to the side so your body heat doesn’t reflect off the 4180 target and into the dut thermometer.
Verifying infrared thermometer accuracy 741 e. Check the emissivity settings of the infrared thermometer gun, it should be within 0.95 to 0.97. The suggested measuring distance to the forehead is 5cm (2in). Recently we had a fabricator try to do use an ir gun.