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8
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3456
HOLD
C
F
LOCK
HI
LOW
Operating the Thermometer
To measure temperature, aim the thermometer at an object and
pull the trigger key. Be sure to consider the distance to spot size
ratio. The laser is used for aiming only.
Display
1. °F / °C Symbol -
Fahrenheit / Celsius
2. Hi alarm and low
alarm symbol
3. Low battery symbol
4. Measuring
temperature symbol
5. Lock mode for
continuous reading
6. Backlight “on” symbol
7. Laser “on” symbol
8. Holds and displays last temperature measured
9. Current temperature value
10.FunctionmodeiconsforMAX,MIN,DIF,(),AVG,HAL,
LAL,PRB,E,E
11.TemperaturevaluesforMAX,MIN,DIF,(),AVG,HAL,
LAL,PRBandemissivityvaluesforE
Optical Resolution
Ratioofthedistancefromthemeasuredobjectvs.thespotsize
of the measurement area.
Emissivity
Emissivityistheratioofinfraredenergyemittedfroman
object versus the infrared energy emitted by a black body.
The emissivity of the perfect black body is 1. All other
materials have an emissivity ratio between 0.1 (highly
reective)to1.0(Idealblack).Emissivityisdetermined
primarily by the material from which an object is con-
structed and its surface finish.
The thermometer allows emissivity adjustment for the
typeofsurfacebeingmeasured.Refertothefollowing
emissivity table.
1” @ 12”
3” @ 36”
5” @ 60”
Distance
Spot
D 12
=
S 1
3 4
1.00=Referencesource
0.98 = Carbon filed surface
0.98 = Frost crystals
0.98 = Skin human
0.97 = Slate
0.96 = Water distilled
0.96 = Ice smooth
0.95 = Soil saturated with
water
0.95 = Carbon candle soot
0.94=Glasspolishedplate
0.94 = Paint, oil
0.93 = Brick red
0.93 = Paper white bond
0.92 = Concrete
0.92 = Soil dry
0.91 = Plaster rough coat
0.90 = Wood planed oak
0.90=Glazedearthenware
0.89 = Snow, granular
0.88=GlazedSilica
0.87 = Cuprous Oxide
at 38°C
0.86=EmeryCorundum
0.85 = Snow
0.85 = Stainless oxidized
at 800°C
0.84 = Oxidized Iron
at 500°C
0.83 = Cuprous Oxide
at 260°C
0.82 = Snow, fine particles
0.81 = Brass, unoxidized
0.80=Glass,convexD
0.79 = Steel oxidized
0.78 = Copper heavily
oxidized
Emissivity Table
0.77 = Cotton cloth
0.76 = Sand
0.75 = Unglazed silica
0.74 = Oxidized iron
at 100°C
0.73 = Coating No. C20A
0.72 = Basalt
0.71=Graphitizedcarbon
at 500°C
0.70=RedRust
0.69 = Iron sheet heavily
rusted
0.67 = Water
0.66 = Black Loam
0.65 = White cement
0.64 = Iron cast oxidized
0.63 = Lead oxidized
at 1100°F
0.62 = Zirconia on inconel
0.61 = Cu-Zn, brass
oxidized
0.58 = Inconel sheet
at 760°C
0.56 = Smooth white marble
0.55 = Al anodized chromic
acid
0.21 = Iron cast polished
0.20 = Brass rubbed 80
grit emery
0.16 = Stainless steel
18-8 buffed
0.09 = Aluminium as
received
0.07 = Steel polished
0.05 = Aluminium polished
sheet
0.05 = Copper polished
0.03 = Brass highly polished