Milwaukee 2260-21 Storage temperature, Target, Thermal Imager, Thermal imager lens, Thermal mass

storage temperature	The lowest ambient temperature to the highest ambient temperature in which you can store
	the Thermal Imager while it is not being used.
target	The area in a thermal image in the center, defined by square corner markers on the display,
	whose temperature is displayed in 0.1 degree resolution at the top of the display. The
	temperature is the average of all the pixels contained within the brackets.
Thermal Imager	Shorthand name for the M12 160x120 Thermal Imager.
thermal imager lens	The main lens on the Thermal Imager that has the hinged lens cap. This lens focuses infrared
	radiation (IR) on the thermal sensor. There is another, smaller lens for taking visual digital
	images.
thermal mass	Objects with low thermal mass revert to ambient temperature more quickly than objects with
	low thermal mass. For example, a cast-iron engine block has higher thermal mass than an
	aluminum one. Thermal mass and mass are not the same thing.
thermal radiation	Infrared emission from a target area. Thermal radiation intensity infrared radiation drops off
	predictably with distance. This is why fixed-focus thermal imagers are less accurate than ones
	you focus. Focusing tells the Thermal Imager how far away the target is, so the imager can do
	the math to calculate the readings accordingly.
thermal sensitivity	The smallest increment of temperature measurement resolved by the digital reading.
	Equivalent to temperature resolution. (10 °C vs. 1 °C vs. 0.1 °C.)
thermal sensor	Also called “detector,” or “sensor,” the component that detects temperatures throughout the
	field of view. The Thermal Imager’s detector is an uncooled microbolometer.
thermographic study	Taking thermal images and interpreting them to check for problems, or to create a periodic
	record of temperatures for maintenance records.

M12 160x120 Thermal Imager Operator's Manual 31