LumaSense technologies IMPAC IN 5 plus, Руководство пользователя

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IN 5/9 plus Manual Controls and Installation
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3.3 Optics
The IN 5/9 plus pyrometer is equipped ex works with one of the specified optics shown in the
table. Each optic is focussed at a certain distance (main measuring distance). At these distances,
each lens achieves its smallest spot size. Normally the spot size will increase at any other distance
(shorter or longer).
Select one optics that corresponds to the required measuring distance of the application.
Optics Measuring Distance a [mm] Spot Size M
90
[mm]
1
95 1.7
150 11.3
250 28.6
2
112 1.9
200 15
300 29.9
3
160 2.8
250 12.7
350 23.7
4
270 4.5
500 19.7
750 36.9
5
400 6.4
750 25
1000 38.2
6
620 10
1000 25.2
1500 45.2
Effective aperture D for all optics is 14.8 mm
For each optic some example values for measuring distance (measured from the front of the
lens) and spot size are listed. Keep this in mind when considering the mounting position of the
pyrometer as well as the size of the measuring object (the measuring object must be as least as
big as the spot size.
3.3.1 Calculating spot sizes
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
1
= measuring distance
M
1
= spot size
D = aperture
Note:
The measuring object must be at least as big as or bigger than the spot size
of the pyrometer.