Keller ITS CellaPort PT 120, Operating Manual, Page: 54 / 72

Operating manual PT 11x, 12x,13x
48
28 Technical Data PT 128 AF 10
Measuring range:
75 ... 650 °C
Sensors:
photo diode
Spectral sensitivity:
1.8
– 2.4 µm
Response time t
98
:
≤ 200 ms (T > 75 °C)
≤ 50 ms (T > 100 °C)
≤ 15 ms (T > 125 °C)
≤ 2 ms (T> 200 °C)
Measuring uncertainty:
0.75 % of range and but at
least 3 K
(ε =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
28.1 Field of View Diagram for PT 128 AF 10
PT 128 Lens Focussing range Distance to target
size ratio
AF 10 PZ 20.08
0.3 m -

48:1
1 2
3
4
5
6
7
8
9
10
21
42
63 83 104
125
146
167
188
208 D = 48 :1
Target Distance [m]
Target diameter [mm]
0
PZ 20.08 (0.3 m -
∞)
6.3
0.3