VEGA VEGASON 62 Foundation Fieldbus User Manual
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10 Supplement
VEGASON 62 • Foundation Fieldbus
28791-EN-130417
Ʋ Relative humidity
45 … 75 %
Ʋ Air pressure
860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig)
Other reference conditions
Ʋ Reflector
ideal reflector, e.g. metal plate 2 x 2 m (6.56 x 6.56 ft)
Ʋ False reflections
Biggest false signal, 20 dB smaller than the useful signal
Measuring characteristics
Ultrasonic frequency
55 kHz
Interval
> 2 s (dependent on the parameter adjustment)
Abstrahlwinkel at -3 dB
11°
Adjustment time
5)
> 3 s (dependent on the parameter adjustment)
Measuring accuracy
Resolution, general
max. 1 mm
Deviation
6)
see diagram
16 mm (0.63 in)
-16 mm (-0.63 in)
5 m
(16.404 ft)
6 m
(19.685 ft)
7 m
(22.966 ft)
8 m
(26.247 ft)
4 m
(13.123 ft)
3 m
(9.843 ft)
2 m
(6.562 ft)
1 m
(3.28 ft)
10 mm (0.394 in)
4 mm (0.157 in)
-10 mm (-0.394 in)
-4 mm (-0.157 in)
Fig. 28: Deviation VEGASON 62
Influence of the ambient temperature to the sensor electronics
7)
Average temperature coefficient of the
zero signal (temperature error)
0.06 %/10 K
Ambient conditions
Ambient, storage and transport tempera-
ture
-40 … +80 °C (-40 … +176 °F)
Process conditions
Process pressure
-20 … 200 kPa/-0.2 … 2 bar (-2.9 … 29 psig)
5)
Time to output the correct level (with max. 10 % deviation) after a sudden level change.
6)
Incl. non-linearity, hysteresis and non-repeatability.
7)
Relating to the nominal measuring range.