LumaSense Technologies IGA 740-LO - Manual (Page 21)

17
7 Operation of the pyrometer
7.1 Setting the optic
vario optic please adjust the necessary measuring distance as follows:
1. If necessary switch on the pilot light by pressing the [OK] key.
3. Move the vario optic forwards and/or backwards, in order to adjust the
pyrometer to the required measuring distance.
Note:
the adjusted distance!
4. After adjusting the measuring distance, lock the annular nut by turning it
in a clockwise direction.
The vario optic is thus adjusted to the required measuring
distance.
Example:
Ring nut
Fibre optics
Length (L)
Min.
Max.
Measuring distance
Fig. 7 Setting the vario optic head
Measuring distance 80 100 120 140 160 180 200 220 240 260 280 300
Ø 1,6 1,8 2,0 2,2 2,4 2,6 2,8 3,1 3,4 3,7 4,0 4,3
Length L 63,2 60,0 58,1 56,2 55,4 54,6 54,0 53,6 53,1 52,7 52,4 52,1