VEGA VEGAPULS 45 Profibus PA User Manual
Page 50
50
VEGAPULS 42, 44 and 45 – Profibus PA
24908-EN-041227
Technical data
Accuracy
1)
(typical values under reference conditions, all statements relate to the nominal range)
Characteristics
linear
Accuracy
see diagram
Resolution, general
max. 1 mm
Resolution of the output signal
1 mm or 0.005 %
Characteristics
1)
(typical values under reference conditions, all statements relate to the nominal measuring
range)
Min. span between
full and empty
> 10 mm (recommended > 50 mm)
Frequency
26 GHz technology
Intervals
0.6 s
Beam angle (at -3 dB)
- VEGAPULS 42
22°
optional
18°, 10° and 8° when using larger coupling horns
deviating from the nominal dimension
- VEGAPULS 44
DN 50, ANSI 2“
18°
DN 80, ANSI 3“
10°
DN 100, ANSI 4“
8°
DN 150, ANSI 6“
8°
- VEGAPULS 45
not applicable, as the measuring tube acts as
waveguide
Adjustment time (response time)
2)
> 1 s (dependent on parameter setting)
Influence of the process temperature
at 0 bar not measurable;
at 5 bar 0.004 %/10 °K;
at 40 bar 0.03 %/10 °K
Influence of the process pressure
0.0265 %/bar
Emitted radar power (average)
0.717 µW
Received average emitted power
3)
- distance 1 m
0.4 … 3.2 nW per cm² (0.4 … 3.2 x 10
-9
W/cm²)
- distance 5 m
0.02 … 0.13 nW per cm²
1)
Similar to DIN 16 086, reference conditions acc. to IEC 770, e.g.
temperature 15 °C … 35 °C; moisture 45 % … 75 %; pressure 860 mbar … 1060 mbar
2)
The adjustment time (also actuating time, response time or adjustment period) is the time required by the
sensor to output the correct level (with max. 10% deviation) after a sudden level change.
3)
Average emitted power (electromagnetic energy) received by a body per cm² directly in front of the antenna.
The received emitted power depends on the antenna version and the distance.
0,5 m
10 m
10 mm
5 mm
-5 mm
-10 mm