73
11 Supplement
VEGAPULS 64 • 4 … 20 mA/HART - two-wire
51141-EN-160815
Characteristics and performance data
Measuring frequency
W-band (80 GHz technology)
Measuring cycle time approx.
2)
700 ms
Step response time
3)
≤ 3 s
Beam angle
4)
Ʋ Plastic horn antenna
3°
Ʋ Thread ¾" with integrated horn
antenna
14°
Ʋ Thread 1½" with integrated horn
antenna
7°
Ʋ Flange DN 50/2" with encapsulated
antenna system
6°
Ʋ Flange DN 80/3" with encapsulated
antenna system
3°
Ʋ Hygienic fittings
6°
Emitted HF power (depending on the parameter adjustment)
5)
Ʋ Average spectral transmission power
density
-3 dBm/MHz EIRP
Ʋ Max. spectral transmission power
density
+34 dBm/50 MHz EIRP
Ʋ Max. power density at a distance of
1 m
< 3 µW/cm²
Ambient conditions
Ambient, storage and transport tempera-
ture
-40 … +80 °C (-40 … +176 °F)
Process conditions
For the process conditions, please also note the specifications on the type label. The lowest value
(amount) always applies.
Process temperature
Version
Material
Seal
Process temperature (measured on the
process fitting)
Plastic horn antenna,
unassembled or with
compression flange
PP
PP
-40 … +80 °C (-40 … +176 °F)
Plastic horn antenna
with adapter flange
PP
FKM (SHS FPM
70C3 GLT)
-40 … +80 °C (-40 … +176 °F)
EPDM (COG AP310)
2)
With operating voltage U
B
≥ 24 V DC
3)
Time span after a sudden distance change from 1 m to 5 m until the output signal reaches 90 % of the final
value for the first time (IEC 61298-2). Valid with operating voltage U
B
≥ 24 V DC
4)
Outside the specified beam angle, the energy level of the radar signal is 50% (-3 dB) less.
5)
EIRP: Equivalent Isotropic Radiated Power.