Lumasense-technologies IN 210/4 Manual de usuario descargar pdf (Pagina 10)

IMPAC pyrometers IN 210 · IN 210/4 · IN 210/5

7 Parameter Settings

The setting of emissivity, response time and temperature

sub range can

only be done via service interface with the

portable setup device HT 6000 (see

8.1) or via USB adapter

for IN 210 and the software InfraWin (see

8.2).

On request the instrument also can be delivered with preset-

ting on demand.

7.1 Factory settings

Emissivity

= 100%; Response time = 120 ms; Sub range = measuring range; Ambient

temperature compensation = auto; Address = 00

7.2 Emissivity ε

The emissivity is the relationship between the emission of a real object and the emission of a

blackbody radiation source (this is an object which absorbs all incoming rays and has an

emissivity of 100%) at the same temperature. Different materials have different emissivities

ranging between 0% and 100% (pyrometer settings between 5 to 100%). Materials which

reflect more radiation have a lower emissivity and the emissivity setting of the pyrometer

needs to be adjusted accordingly. Additionally the emissivity is depending on the surface

condition of the material, the spectral range of the pyrometer and the measuring temperature.

Typical emissivity values of various common materials for the two spectral ranges of the in-

struments are listed in the emissivity table below. The tolerance of the emissivity values for

each material is mainly dependent on the surface conditions. Rough surfaces have higher

emissivities.

Emissivity values for IN 210 and IN 210/4

Object Emissivity (%) Object Emissivity (%)

"Black body furnace" 1 Brickwork

Human skin 0.98 Fire clay

Black dull varnish 0.95 Rubber

Carbon soot 0.95 Porcelain 0.85 - 0.95

Wood 0.80 - 0.92 Ceramics

Paper 0.92 - 0.95 Varnish

Asphalt 0.85 Plaster

Glass / quartz glass 0.72 - 0.87 Oil paint

Textile 0.75 - 0.95 Steel (oxidized) 0.6 - 0.8

Graphite 0.75 - 0.92 Steel (smooth) 0.1 - 0.3

Cement 0.9 Aluminum (smooth) 0.02 - 0.15

Water 0.95 Aluminum (anodized) 0.9

Emissivity value for IN 210/5

Object Emissivity (%)

Glass / quartz glass 0.97

Service

interface

Sealing

cap

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 31 32

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