1 spot size table isq 5, 2 types isq 5-lo (with fiber), 2 spot size table isq 5-lo – LumaSense Technologies ISQ 5-LO Benutzerhandbuch
Seite 13: Spot size table isq 5, Types isq 5-lo (with fiber), Spot size table isq 5-lo
IMPAC pyrometers ISQ 5 · ISQ 5-LO
13
6.1.1
Spot size table ISQ 5
Temp. range
600 to 1400°C
700 to 1800°C
800 to 2500°C
1000 to 3000°C
Meas. distance a
Spot size M [mm]
250 mm
6
3
1.5
1.5
300 mm
8
4
2
2
500 mm
11
5.5
2.8
2.8
800 mm
16
8
4
4
1300 mm
26
13
6.5
6.5
2000 mm
40
20
10
10
Aperture D [mm]
6
6
6
4.0
The focusing range for the optics (focused to measuring distance a [mm]) is set by factory and should be
taken into account when ordering (special focus distances upon request)!
6.1.2
Types ISQ 5-LO (with fiber)
Depending on the application the instrument will be delivered with a small or a big optical head.
Type I (small optical head): With the very small dimensions the optical head I is
suited for use in confined spaces. The optics is adjusted to one of the measuring
distances mentioned in the table 6.2. The mentioned spot size will be achieved
in exactly this distance (other distances on request).
Type II (focusable optical head): With the focusable optical head II each
measuring distance can be adjusted within the mentioned limits to achieve the
smallest spot size in the required distance. The spot size at the shortest and
longest distance is mentioned in the following table 6.2. Spot sizes at intermedi-
ate distances have to be calculated by interpolation.
Type II (fixed adjusted optical head): The fixed adjusted optical head II has a
similar size as the focusable optical head but with a fixed focusing distance simi-
lar to type I (see table 6.2).
Note:
The optical heads can be changed against each other. A recalibration of the pyrome-
ter is not necessary.
6.2
Spot size table ISQ 5-LO
Optical head
type
Measuring distance
a [mm]
Spot size
M [mm]
Aperture *
)
D [mm]
Reference number
replacement optics
120
1.2
7
3 873 320
260
2.6
7
3 873 340
Type
(small optics)
700
7.2
7
3 873 350
88 to 110
0.45 to 0.6
17
3 838 210
95 to 129
0.5 to 0.75
16
3 838 220
105 to 161
0.6 to 1.0
15
3 838 230
200 to 346
0.8 to 1.5
17
3 838 240
247 to 606
1.1 to 2.7
16
3 838 250
Type
(focusable
optics)
340 to 4500
1.5 to 22
15
3 838 260
87
0.45
17
3 873 420
200
0.8
17
3 873 440
600
2.7
15
3 873 460
Type
(fixed adjusted
optics)
4500
22
15
3 873 470
*
)
The aperture is the effective lens diameter of the optics. It is depending on the objective length which is changing if the measuring distance
will be adjusted. The biggest aperture value belongs to the fully extended objective, the smallest aperture value if the objective is turned to its
smallest size. Intermediate values have to be interpolated (e.g. calculating the spot size if the measuring distance varies from the adjusted
value).