VEGA VEGAPULS 43 4 … 20 mA; HART compact sensor - Manual (Page 54)

54 VEGAPULS 43 – 4 … 20 mA
26626-EN-041227
Technical data
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)
Meas. 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)
- DN 50, ANSI 2“ 18°
- DN 80, ANSI 3“ 10°
- DN 100, ANSI 4“ 10°
- DN 150, ANSI 6“ 10°
- TRI-Clamp 2“ 18°
- TRI-Clamp 3“ 18°
- socket DN 50 18°
- socket DN 80 18°
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
Ex technical data
Comprehensive data in the safety instructions manual (yellow binder)
WHG approvals
VEGAPULS 43 radar sensors are approved as part of an overfill protection system for
stationary vessels storing water-endangering liquids.
Materials
Housing PBT (Valox) or
Aluminium die casting (GD-AlSi 10 Mg)
Connection housing with Exd version Aluminium mould casting (GK-AlSi 7 Mg)
Process flange 1.4435
Antenna (wetted parts) TFM-PTFE
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.