71
10 Supplement
VEGAPULS 69 • Modbus and Levelmaster protocol
47252-EN-210205
1,0 m (3.281 ft)
30 mm (1.181 in)
- 30 mm (- 1.181 in)
0
5 mm (0.197 in)
- 5 mm (- 0.197 in)
1
3
2
Fig. 44: Deviation under reference conditions
1 Reference plane
2 Recommended min. distance, specifications see below
3 Measuring range end
Recommended min. distance for typical bulk solids applications
3)
Ʋ Plastic horn antenna, flange with lens
antenna
250 mm (9.843 in)
Ʋ
Thread with integrated antenna
system
500 mm (19.69 in)
blocking distance
150 mm (5.906 in)
Variables influencing measurement accuracy
Temperature drift - Digital output
< 3 mm/10 K, max. 10 mm
Characteristics and performance data
Measuring frequency
W-band (within 75 - 85 GHz)
Measuring cycle time
approx. 700 ms
Step response time
4)
≤ 3 s
Beam angle
5)
Ʋ
Plastic horn antenna
3.5°
Ʋ
Flange with lens antenna
4°
Ʋ
Thread with integrated horn antenna 7°
Emitted HF power (depending on the parameter setting)
6)
Ʋ
Average spectral transmission power
density
-3 dBm/MHz EIRP
3)
Depending of the reflective properties of the measured media.
4)
Time span (after a sudden measuring distance change of max. 2 m in bulk solids applications) until the output
signal has taken on 90 % of the final value for the first time (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
