VEGA VEGASON 54P…56P Profibus PA - Manual (Page 59)

VEGASON 54P … 56P 59
Technical data
Characteristics 1)
(typical values under reference conditions, all statements relate to the nominal measuring
range)
Min. span
(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
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 negligible, is compensated by a dynamic
temperature detection system integrated in the
transducer. Without temperature compensation,
the ambient temperature error will be 0.18 %/K
Influence of the process pressure negligible within the approved sensor pressures
Adjustment time 2)
- VEGASON 54 > 2 s (depending on parameter setting)
- VEGASON 55, 56 > 4 s (depending on parameter setting)
Ex technical data
Classification m (encapsulation of the transducer)
Temperature class (permissible ambient
temperature on the transducer
when used in Ex areas)
- T6
42°C
- T5 58°C
- T4 60°C
- T3 60°C
Ex approved in category or Zone
- VEGASON 56
ATEX Zone 1 (II 2G)
IEC, CENELEC, PTB Zone 1
- VEGASON 54 … 56
ATEX Zone 21/22 (II 2D/3D)
IEC, CENELEC, DMT Zone 10/11
1) Similar to DIN 16 086, reference conditions acc. to IEC 770;
temperature 15°C … 35°C; moisture 45 % … 75 %; pressure 860 mbar … 1060 mbar.
2) The adjustment time is the time required by the sensor to output a correct level (with max. 10 % deviation)
after a sudden level change.