LumaSense IMPAC ISR 12-LO/GS, Руководство пользователя

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ISR 12-LO/GS Manual Controls and Installation
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3.5 Optics
3.5.1 Spot Sizes
2 different optical heads are available. They have a special spot size in shape of a line which
guarantees that even a moving pouring stream can always be captured.
The optical heads differ in its spot size depending on the measuring distance. The correct
selection depends on the size of the pouring stream if the pouring stream is moving and the
required distance to the stream.
The optical head must be adjusted to required measuring distance to reach the specified spot
sizes. Distances between 340 and 4500 mm are possible (the adjusted value is mentioned on the
back of the optical head.
The table above shows some examples for different measuring distances (distance measured
from front of the lens to the object, see
2.4 Dimensions )
3.5.2 Spot size table
Optical head with line spot width Optical head with line spot width
= 5% of measuring distance = 12% of measuring distance
Spot [mm]
Width x Height
Spot [mm]
Width x Height
Measuring
Distance
a [mm]
MB 18, 25 MB 13 Measuring
Distance
a [mm]
MB 18, 25 MB 13
340 17 x 1.6 17 x 3.2 340 41 x 1.6 41 x 3.2
500 25 x 2.4 25 x 4.8 500 60 x 2.4 60 x 4.8
750 37.5 x 3.8 37.5 x 7.6 750 90 x 3.8 90 x 7.6
1000 50 x 5 50 x 10 1000 120 x 5 120 x 10
2000 100 x 11 100 x 22 2000 240 x 11 240 x 22
4500 225 x 22 225 x 44 4500 540 x 24 540 x 44
Note: The table mentions spot sizes for different fixed measuring distances of the optical
head. Deviations from the adjusted measuring distances create a certain blur, which
results in an enlarged spot size.