VEGA VEGASON 54V…56V - Manual (Page 18)

18 VEGASON 54V … 56V
Technical data
Characteristics 1)
(typical values under reference conditions, all statements relate to the nominal measuring
range)
Min. measuring range
(between empty and full adjustment) > 20 mm (recommended > 50 mm)
Ultrasonic frequency (at 20°C)
- VEGASON 54
30 kHz
- VEGASON 55 18 kHz
- VEGASON 56 10 kHz
Measuring intervals
- VEGASON 54
1.0 s
- VEGASON 55 1.5 s
- VEGASON 56 2.0 s
Beam angle at -3 dB emitted power
- VEGASON 54
4°
- VEGASON 55 5°
- VEGASON 56 6°
Influence of the process temperature 1.8 %/10 K, however is compensated by an
integral, dynamic temperature detection
system in the transducer
Influence of the process pressure negligible within the approved sensor pressure
range
Ambient conditions
Ambient temperature (housing) -20°C … +60°C
Process temperature (transducer)
- VEGASON 54, 55
-40°C … +80°C (StEx: -20°C … +75°C)
- VEGASON 56 -40°C … +150°C
- storage and transport temperature -40°C … +80°C
Vessel pressure max. (gauge pressure)
- VEGASON 54
version A 1.5 bar (flange version)
version B … C 0.5 bar
version D 3 bar
- VEGASON 55
version A 1.5 bar (flange version)
version B … C 0.5 bar
version D 3 bar
- VEGASON 56
version A 3 bar (flange version)
version B … C 0.5 bar
version D 3 bar
Protection
- sensor
IP 67
- transducer, process IP 68
Protection class
- two-wire sensor
II
- four-wire sensor I
Overvoltage category III
Self-heating
at 40°C ambient temperature
- sensor
45°C
- transducer, process 55°C