Fluke 65 [5/12] Display elements

Fluke 65 [5/12] Display elements
Model 65 English Instruction Sheet
Page
5
Display Elements
4
5
6
7
3
1
2
8
9
aab01f.eps
A Laser-enabled indicator
B Measurement activity indicator
C Temperature hold indicator
D Battery level indicator
E Measured surface temperature value
F Celsius or Fahrenheit mode
G Stored temperature indicator
H Maximum, minimum, or stored temperature value
I Maximum or minimum temperature indicator
Ensuring Accuracy
Emissivity
Emissivity is a value between 0 and 1 that indicates an object’s
ability to emit infrared energy. Emissivity is determined primarily
by the object’s composition and surface finish. A polished, non-
oxidized metallic surface has an emissivity value near 0 and a
dull, black surface has an emissivity value near 1. (See
"Emissivity of Common Materials.")
The thermometer’s sensitivity to emissivity is set at the factory to
0.95. If the emissivity of the object is not 0.95, the displayed
temperature could differ from the actual surface temperature. To
reduce this difference, apply black tape, black matte paint, or
black magic marker to the object if it is safe to do so and
measure the darkened surface.

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