VEGA VEGAPULS 41 4 … 20 mA; HART compact sensor - Manual (Page 53)

VEGAPULS 41 – 4 … 20 mA 53
26620-EN-041227
Technical data
Accuracy 1)
(typical values under reference conditions, all statements relate to the nominal measuring
range)
Characteristics linear
Resolution, general max. 1 mm
Resolution of the output signal see diagram
Characteristics 1)
(typical values under reference conditions, all statements relate to the nominal measuring
range)
Min. span between
full and empty > 10 mm (recommended > 50 mm)
Frequency 26 GHz technology
Intervals
- two-wire sensor (4 … 20 mA) 1 s
- two-wire sensor (digital) 0.6 s
- four-wire sensor 0.5 s
Beam angle (at -3 dB) 22°
Adjustment time (response time) 2) > 1 s (dependent on the parameter adjustment)
Influence of the process temperature cannot be measured at 0 bar;
at 5 bar 0.004 %/10 °K;
at 40 bar 0.03 %/10 °K
Influence of the process pressure 0.0265 %/bar
Adjustment time 2) > 1 s (dependent on the parameter adjustment)
Emitted radar power (average) 0.717 µW
Received average emitted power 3)
- distance 1 m 0.4 … 3.2 nW per cm² (0.4 … 3.2 x 10 -9 W/cm²)
- distance 5 m 0.02 … 0.13 nW per cm²
1) Similar to DIN 16 086, reference conditions acc. to IEC 770, e.g.
temperature 15 °C … 35 °C; moisture 45 % … 75 %; pressure 860 mbar … 1060 mbar
2) The adjustment time (also actuating time, response time or adjustment period) is the time required by the
sensor to output the correct level (with max. 10% deviation) after a sudden level change.
3) Average emitted power (electromagnetic energy) received by a body per cm² directly in front of the antenna.
The received emitted power depends on the antenna version and the distance.
0,5 m 10 m
10 mm
5 mm
-5 mm
-10 mm