7811 SupplementVEGAPULS 61 • 4 … 20 mA/HART - two-wire36499-EN-170405Deviation in the current output due tostrong, high-frequency electromagneticfields acc. to EN 61326< ±150 μACharacteristics and performance dataMeasuring frequency K-band (26 GHz technology)Measuring cycle timeƲ Standard electronics approx. 450 msƲ Electronics with increased sensitivity approx. 700 msStep response time4) ≤ 3 sBeam angle5)Ʋ Encapsulated antenna system 22°Ʋ Plastic horn antenna 10°Emitted HF power (depending on the parameter setting)6)Ʋ Average spectral transmission powerdensity-14 dBm/MHz EIRPƲ Max. spectral transmission powerdensity+43 dBm/50 MHz EIRPƲ Max. power density at a distance of1 m< 1 μW/cm²Ambient conditionsAmbient, storage and transport tempera-ture-40 … +80 °C (-40 … +176 °F)Process conditionsFor the process conditions, please also note the specifications on the type label. The lower valuealways applies.Vessel pressureƲ Encapsulated antenna system -1 … 3 bar (-100 … 300 kPa/-14.5 … 43.5 psi)Ʋ Plastic horn antenna -1 … 2 bar (-100 … 200 kPa/-14.5 … 29.0 psig)Ʋ Version with adapter flange fromDN100 PP or PP-GF 30-1 … 1 bar (-100 … 100 kPa/-14.5 … 14.5 psig)Process temperature (measured on theprocess fitting)-40 … +80 °C (-40 … +176 °F)Vibration resistanceƲ With adapter flange 2 g at 5 … 200 Hz according to EN 60068-2-6 (vibrationwith resonance)Ʋ with mounting strap 1 g at 5 … 200 Hz according to EN 60068-2-6 (vibrationwith resonance)4) Time span after a sudden measuring distance change by max. 0.5 m in liquid applications, max 2 m with bulksolids applications, until the output signal has taken for the first time 90 % of the final value (IEC 61298-2).5) Outside the specified beam angle, the energy level of the radar signal is 50% (-3 dB) less.6) EIRP: Equivalent Isotropic Radiated Power.