VEGA VEGAPULS 56 Profibus PA - Manual (Page 78)

78 VEGAPULS 56 Profibus PA
Adjustment
- adjustment software VEGA Visual Operating on Master-Class 2 PC
- adjustment module MINICOM in sensor or in external indicating instrument (optional)
- process adjustment interface PACTware
TM
- SIMATIC PDM in conjunction with Electronic Device Description (EDD)
Accuracy (typical values under reference conditions) 2)
Accuracy < 0.1 % (deviation in characteristics including
repeatability and hysteresis acc. to the limit
point adjustment relating to the max. measuring
range)
Linearity error better than 0.05 %
Influence
- of the ambient temperature
2) 0.06 %/10 K
- of the process temperature 2) negligible (0.004 %/10 K at 5 bar)
(0.003 %/10 K at 40 bar)
- of the process pressure 0.025 %/bar
Resolution of the digital output
signal
0.005 % (relating to max. measuring range)
Adjustment time 1 … 10 s (dependent on default setting)
Resolution max. 1 mm
Characteristics 1)
Frequency 6.3 GHz (USA 6.3 GHz)
Intervals 0.6 s
Min. span between full
and empty adjustment
10 mm (recommended 50 mm)
Beam angle (at –3 dB)
- with DN 80
38° (only for standpipe measurement)
- with DN 100 30° (only for standpipe measurement)
- with DN 150 20°
- with DN 200 16°
- with DN 250 14°
Influence of the process temperature at 0 bar nor 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 cm 2 (0.4 … 3.2 x 10 -9 W/cm 3 )
- distance 5 m 0.02 … 0.13 nW per cm 2
Technical data