VEGA VEGASON 63 Profibus PA User Manual
Page 41
41
10 Supplement
VEGASON 63 • Profibus PA
28786-EN-130417
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
35 kHz
Interval
> 2 s (dependent on the parameter adjustment)
Abstrahlwinkel at -3 dB
6°
Adjustment time
5)
> 3 s (dependent on the parameter adjustment)
Measuring accuracy
Resolution, general
> 1 mm (0.039 in)
Deviation
6)
see diagram
15 m
(49.213 ft)
8 m
(26.247 ft)
6 m
(19.685 ft)
12 m
(39.37 ft)
10 m
(32.808 ft)
3 m (9.843 ft)
10 mm (0.394 in)
20 mm (0.787 in)
30 mm (1.181 in)
6 mm (0.236 in)
-6 mm (-0.236 in)
-10 mm (-0.394 in)
-20 mm (-0.787 in)
-30 mm (-1.181 in)
Fig. 27: Deviation VEGASON 63
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
Ʋ with compression flange
-20 … 100 kPa/-0.2 … 1 bar (-2.9 … 14.5 psi)
Ʋ with mounting strap
0 kPa, since no seal possibility
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.