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

IMPAC pyrometers IS 12-TSP · IGA 12-TSP

6.2 Laser targeting light

The laser poi

nt marks the center of the spot, not the exact size. On the focused measur-

ing distance the laser has its smallest spot size and is illustrated exactly (adjusting the

measuring distance see 7, Optics).

The laser targeting light can be u

sed without affecting the measurement.

7 Optics

The pyrometers are equipped ex works with a focusable optics. With this focusable optics the best possible

distance ratio can always be adjusted for each distance within the optics limits (the smallest and largest

value of each optics for the measuring distance in the table).

Focusable optics IS 12-TSP Focusable optics IGA 12-TSP

Measuring

distance

a [mm]

Spot size M

[mm] Spot size M

[mm]

Objective

length

S [mm]

all temperature ranges 200 ... 1020°C 250 ... 1400°C

275 0.7 2 1.1 30

400 1.1 3 1.6 9

Optics

520 1.5 4.2 2.2 0

385 1 2.7 1.5 30

700 1.9 5.2 3 8.5

Optics

1125 3.4 8.5 4.9 0

540 1.4 3.5 2 30

3000 8.5 23 13 3

Optics

9000 26 72 38 0

Aperture D [mm] *

)

13.5 ... 17 13.5 ... 17

)

The aperture is the effective lens diameter. It is depending on the objective length. The biggest aperture value (17 mm) belongs to the fully

extended objective (S = 30 mm), the smallest aperture value (13.5 mm) for objective length S = 0. Intermediate values have to be interpo-

lated (e.g. calculating the spot size if the measuring distance differs from the adjusted distance). The spot size calculator included in the In-

fraWin software is the easiest way to calculate the spot size if the measuring distance differs from a fixed adjusted (see 10.13, Spot s

ize cal-

culator).

7.1 Adjusting the required measuring distance

The req

uired measuring distance must be adjusted to achieve the spot

sized mentioned in the tables above.

For releasing the optics has to be turned anticlockwise. Then it can be

pushed or pulled to find the correct measuring distance (see 6, Sight-

ing). For fixing the optics h

as to be turned clockwise.

Note: The measuring object has to be bigger or at least

as big as the spot size of the pyrometer.

7.1.1 Adjusting the measuring distance with help of the table

The table me

ntions the minimum and maximum measuring distance for each of the

3 focusable optics. This corresponds to the longest or the shortest objective length.

As an example a further value between max. and min. is shown. The objective

length “S” can be measured with a caliper.

7.1.2 Other measuring distances

For all other

measuring distances the optics will be adjusted with help of the view

finder or the laser targeting light (see 6, Sighting).

release

fix

Push / pull

(Objective

length)

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 51 52

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