VEGA VEGAPULS SR 68 Profibus PA User Manual
Page 70
70
11 Supplement
VEGAPULS SR 68 • Profibus PA
38296-EN-130624
Measuring cycle time approx.
700 ms
Step response time
1)
≤ 3 s
Beam angle
2)
Ʋ Horn antenna ø 40 mm (1.575 in)
20°
Ʋ Horn antenna ø 48 mm (1.89 in)
15°
Ʋ Horn antenna ø 75 mm (2.953 in)
10°
Ʋ Horn antenna ø 95 mm (3.74 in)
8°
Ʋ Parabolic antenna
3°
Emitted HF power (depending on the parameter adjustment)
3)
Ʋ Average spectral transmission power
density
-14 dBm/MHz EIRP
Ʋ Max. spectral transmission power
density
+43 dBm/50 MHz EIRP
Ʋ Max. power density in a distance of
1 m
< 1 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
always applies.
Seal
Antenna impedance
cone
Process temperature (measured on the process
fitting)
FKM (SHS FPM 70C3
GLT)
PTFE
-40 … +130 °C (-40 … +266 °F)
FFKM (Kalrez 6375)
PFFE
-20 … +130 °C (-4 … +266 °F)
PEEK
-20 … +250 °C (-4 … +482 °F)
FFKM (Kalrez 2035)
PFFE
-15 … +130 °C (5 … +266 °F)
PEEK
-15 … +210 °C (5 … +410 °F)
FFKM (Kalrez 6230)
PFFE
-15 … +130 °C (5 … +266 °F)
PEEK
-15 … +250 °C (5 … +482 °F)
Vessel pressure - horn antenna
Ʋ Antenna impedance cone PTFE
-1 … 40 bar/-100 … 4000 kPa (-14.5 … 580 psi)
Ʋ Antenna impedance cone PEEK
-1 … 100 bar/-100 … 10000 kPa (-14.5 … 1450 psi)
Vessel pressure with swivelling holder
-1 … 1 bar (-100 … 100 kPa/-14.5 … 14.5 psig)
Vessel pressure relating to the flange
nominal stage
see supplementary instructions manual "Flanges ac-
cording to DIN-EN-ASME-JIS"
Vibration resistance
1)
Time span after a sudden measuring distance change by max. 0.5 m in liquid applications, max 2 m with bulk
solids applications, until the output signal has taken for the first time 90 % of the final value (IEC 61298-2).
2)
Outside the specified beam angle, the energy of the radar signal has a level which is reduced by 50 % (-3 dB)
3)
EIRP: Equivalent Isotropic Radiated Power