Infrared (IR) flame detectors monitor the infrared spectral band for specific patterns given off by hot gases. These are sensed using a specialized fire-fighting thermal imaging camera (TIC), a type of thermographic camera. False alarms can be caused by other hot surfaces and background thermal radiation in the area.
How to Broil or Bake Filet Mignon. 1  For cuts that are less than 1-1/2 inches thick, position the broiler rack so the steak will be 3 to 4 inches from the heat. 2  For cuts that are 1-1/2 inches thick, position the broiler rack so the steak will be 4 to 5 inches from the heat.3  Preheat the broiler. Place the filet on the grill rack over the heat. 2  Cover the grill. 3  Use the following timings for grilling filet mignon, and turn once halfway through the grilling time: 4  For a 1-inch cut, grill 10 to 12 minutes for medium rare (145 degrees F) or 12 to 15 minutes for medium (160 degrees F).
Some general guidelines for roasting times are: at 425 degrees F, a 2- to 3-lb. whole filet mignon will be done in 35 to 40 minutes and a 4- to 6-lb. cut will take 45 to 60 minutes. Use temperature as your precise guide for doneness and remove the roast from the oven when it is 5 degrees below the final temperature.eason your whole filet mignon with a dry rub. Make a dry rub by combining a blend of herbs and spices that suit your taste or the flavor of the dish. Use a bit of salt and pepper for the simplest version of a dry rub.