Keller ITS CellaPort PT 120, Operating Manual, Page: 61 / 72

Operating manual PT 11x, 12x,13x
55
32 Technical Data PT 135
Measuring range:
600 ... 3000 °C
Sensors:
photo diode
Spectral sensitivity:
0.82
– 0.93 µm
Response time t
98
:

50 ms (T > 650 °C)

2 ms (T > 850 °C)
Measuring uncertainty:
0,3 % of range and but at
least 4 K (at
e
=1,0 and T
A =
23 °C)
Repeatability:
1 K
Temperature coefficient with
reference to 23 °C:

0.25 K / K (for T < 500 °C)

0.05 %/K (for T
≥
500 °C)
of measured value
32.1 Field of View Diagrams PT 135
PT 135 Lens Focussing range
Distance to target
size ratio
AF 1 PZ 20.01
0.4 m -

210:1
AF 2 PZ 20.03 0.2 m
– 0.4 m
200:1
AF 3 PZ 20.06
1.2 m -

310:1
AF 4 PZ 20.05
0.2 m -

55:1
1 2
3
4
5
6
7
8
9
10
5
10
14
19
24 28
33
38
43
48 D = 210 :1
Target distance [m]
Target diameter [mm]
0
PZ 20.01 (0.4 m -
∞)