TB 110 BULLARD THERMAL IMAGER

Question 1

TB 110 BULLARD THERMAL IMAGER

hottest objects will appear _____ shades while the cooler objects will appear _______ shades.

Answer 1

white or lighter

black or as darker

Question 2

TB 110 BULLARD THERMAL IMAGER

Thermal Imagers cannot see through solid objects, they can only pick up heat that has been transferred to the surface of the material. The display on the imager is relative to the area being viewed. The shades displayed are relative to each other and the conditions within the displayed area. In a very hot environment, actual visible flames may appear as white. Other items such as a steel pole that is extremely hot to the touch will be displayed as a darker shade, maybe even black.

Answer 2

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Question 3

TB 110 BULLARD THERMAL IMAGER

Upon depressing the “On/Off” button, the “Sleep” indicator light will appear on the viewing screen.

After approximately 20 seconds, the thermal image will appear accompanied by a calibrating gray scale at the bottom of the screen. After about 45 seconds, thengray scale is reduced to a small white rectangle in the lower left hand corner of the screen indicating that the unit is fully operational.

Answer 3

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Question 4

TB 110 BULLARD THERMAL IMAGER

turn the Thermal Throttle knob in the opposite direction until the picture contrast is to your liking. It will take less than one full revolution of the Thermal Throttle to completely open the aperture.

Most of the needed adjustment will be accomplished within about a 1⁄4 of one revolution of the Thermal Throttle.

Answer 4

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Question 5

TB 110 BULLARD THERMAL IMAGER

Monday morning checks replace the battery with a fully charged battery.

Answer 5

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Question 6

TB 110 BULLARD THERMAL IMAGER

Limitations

Glass - Infrared radiation will not penetrate glass, however heated glass will show up lighter in color.

Reflections – Infrared radiation can be reflected by a number of surfaces. These include glass, water, mirrors and shiny surfaces.

Water - Infrared radiation will not penetrate water although some penetration may occur in a fog or mist. It can, however, distinguish objects floating on the surface of the water such as a person or a chemical.

Thermal Inversion – Occurs when an object changes shade, even though its temperature has not. This can happen when there is an environmental change.

Answer 6

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