Lumasense-technologies IS 12-S Manual de usuario descargar pdf (Pagina 19)

IS 12 / IGA 12 Manual Controls and Instalaltion  19

Note: The pyrometer can measure objects at any distance but the object has to be

bigger than or at least as big as the spot size of the pyrometer in the measuring

distance.

Calculating the spot sizes on different measuring distances:

Spot sizes for other measuring distances can

be calculated with the following equations

or with the IR calculator of the InfraWin

software.

Table values: a

= measuring distance

= spot size

D = aperture

3.3.2 Focusable optics

Focusable optics IS 12

Measuring

distance

a [mm]

Spot size M

[mm]

Objective

length

S [mm]

MB 14

MB 16

MB 18; 20L

MB 25; 35L

Optics

a = 277 mm

0.9

0.6

0.4

a = 400 mm

0.8

0.5

9.5

a = 533 mm

1.4

1.1

0.7

Optics

a = 388 mm

0.8

0.45

a = 700 mm

1.8

1.5

0.8

8.6

a = 1170 mm

2.4

1.4

Optics

a = 550 mm

1.5

0.6

a = 3000 mm

3.3

a = 9500 mm

10.6

Aperture D [mm]*

13.5 to 17

10 to 13

5 to 7

Focusable optics IGA 12

Measuring

distance

a [mm]

Spot size M

[mm]

Objective

length

S [mm]

MB 10

MB 13; 14L

MB 18

MB 23

Optics

a = 280 mm

a = 400 mm

a = 520 mm

Optics

a = 390 mm

a = 700 mm

a = 1090 mm

Optics

a = 550 mm

a = 3000 mm

a = 5600

Aperture D [mm] *

)

5 to 17

10 to 13

)

The aperture is the effective lens diameter. It is depending on the objective length. The biggest aperture value belongs to

the fully extended objective (S = 30), the smallest aperture value for objective length S = 0. Intermediate values have to be

interpolated.

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 39 40

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Lumasense-technologies IS 12-S Manual de usuario Pagina 19

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