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MAINTENANCE:
Cleaning the lens: Blow off loose particles using clean
compressed air. Gently brush remaining debris away with a
camel's hair brush. Carefully wipe the surface with a moist
cotton swab. The swab may be moistened with water.
NOTE:
DO NOT use solvents to clean the lens.
CLEANING THE HOUSING: Use soap and water on a damp
EMISSIVITY TABLE
Material
Gold (pure highly polished)
Aluminum Foil
Aluminum Disc
Aluminum Household (flat)
Aluminum (polished prate 98.3%)
Aluminum (rough plate)
Aluminum (oxidized @ 599°C)
Aluminum surfaced roofing
Tin (bright tinned iron sheet)
Nickel wire
Lead (pure 99.95-unoxidized)
Copper
Steel
Zinc galvanized sheet iron (bright)
Brass (highly polished)
Brass (hard rolled-polished w/lines)
Iron galvanized (bright)
Iron plate (completely)
Rolled sheet steel
Oxidized iron
Wrought iron
Molten iron
sponge or soft cloth.
Temp °F/°C
227/440
27/81
27/81
23/73
227/400
577/1070
26/78
199/390
599/1110
38/100
25/77
187/368
127/260
199/390
599/1110
199/390
599/1110
28/82
247/476
21/70
-
20/68
21/71
100/212
21/70
1299-1399/
3270-2550
Material
Copper(polished)
Copper (scraped shiny not mirrored)
Cooper (plate heavily oxidized)
Enamel (white fused on iron)
Formica
Frozen oil
Brick (red-rough)
Brick (silica-unglazed rough)
Carbon (T-carbon 0.9% ash)
Concrete
Glass (smooth)
Granite (polished)
Emissivity
Ice
0.02
Marble (light gray polished)
0.04
Asbestos board
0.18
Asbestos paper
0.01
0.04
Asphalt (paving)
0.06
0.06
0.11
0.19
0.22
0.04
0.1
0.06
0.18
0.19
0.52
0.57
0.23
0.03
0.04
0.13
0.69
0.66
0.74
0.94
0.29
Temp °F/°C
Emissivity
21-117/70-242
0.02
22/72
0.07
25/77
0.78
19/66
0.9
27/81
0.94
-
0.93
21/70
0.93
1000/1832
0.8
127/260
0.81
-
0.94
22/72
0.94
21/70
0.85
0/32
0.97
22/72
0.93
23/74
0.96
38/100
0.93
371/700
0.95
4/39
0.97
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