3 optics – LumaSense Technologies IS 320 User Manual
Page 13
IS 320 • IGA 320 Manual
General 13
becomes diffuse. The targeting light only marks the center of the measuring spot, not the size.
A measuring tape can also be used to determine the distance between the object and
pyrometer.
If the pyrometer is supplied with power, the LED targeting light is automatically active. If the
targeting light does not activate, check whether the pyrometer is properly connected to the
power supply (consult the window pyrometer parameters in Chapter 4 for more information).
It is possible to connect a push button to the pyrometer to switch the targeting light on and off
(see Section 3.1.1, Pin assignment of the male socket on the back of the pyrometer).
3.3 Optics
The pyrometers are equipped with one of the following optics. Optics focus to a certain
distance, i.e. at these distances each optics achieves its smallest spot size in relation to the
measuring distance. The spot size will change at any other distance (shorter or longer).
Note: The measuring object must be as least as big as the spot size.
The drawing and the table below illustrate the size of the spots in mm in relation to the
measuring distance. Values between the data shown below can be calculated by interpolation.
The spot size for measuring distance 0 is the aperture diameter “D” of the optics.
Type Optics
Temperature range
a : M
*
)
a
M
a
1
M
1
a
2
M
2
D
IS
32
0
4
550 ... 1400 °C
(MB 14)
83 : 1
250
3
500
15
1000
39
9
600 ... 1600 °C
(MB 16)
125 : 1
2
500
13
1000
35
650 ... 1800 °C
(MB 18)
192 : 1
1.3
500
12
1000
33
5
550 ... 1400 °C
(MB 14)
92 : 1
600
6.5
1000
17
2000
43
600 ... 1600 °C
(MB 16)
133 : 1
4.5
1000
14
2000
36
650 ... 1800 °C
(MB 18)
188 : 1
3.2
1000
11.3 2000
32
6
550 ... 1400 °C
(MB 14)
93 : 1
1400
15
2000
26
3000
43
600 ... 1600 °C
(MB 16)
156 : 1
9
2000
17
3000
30
650 ... 1800 °C
(MB 18)
200 : 1
7
2000
14
3000
26
IG
A
32
0
4
300 ... 1300 °C
(MB 13)
125 : 1
250
2
500
13
1000
35
9
400 ... 1800 °C
(MB 18)
208 : 1
1.2
500
11.4 1000
32
5
300 ... 1300 °C
(MB 13)
133 : 1
600
4.5
1000
13.5 2000
36
350 ... 1650 °C
(MB 16.5)
188 : 1
3.2
1000
11.4 2000
32
400 ... 1800 °C
(MB 18)
231 : 1
2.6
1000
10.3 2000
30
6
300 ... 1300 °C
(MB 13)
156 : 1
1400
9
2000
16.8 3000
30
400 ... 1800 °C
(MB 18)
233 : 1
6
2000
12.4 3000
24
Spot size [mm]
Measuring distance [mm]
D
a
a
1
a
2
M
2
M
1
M