44
13 Supplement
VEGAPULS C 22 • SDI-12
58345-EN-200806
0,25 m (0.8202 ft)
10 mm (0.3937 in)
- 10 mm (- 0.3937 in)
2 mm (0.0787 in)
- 2 mm (- 0.0787 in)
0
1
2
Fig. 27: Deviation under reference conditions
8)
1 Antenna edge, reference plane
2 Recommended measuring range
Variables influencing measurement accuracy
Temperature drift - Digital output
< 3 mm/10 K, max. 5 mm
Additional deviation through electromag-
netic interference acc. to EN 61326
< 50 mm
Characteristics and performance data
Measuring frequency
W-band (80 GHz technology)
Measuring cycle time
≤ 250 ms
Step response time
9)
≤ 3 s
Beam angle
10)
8°
Emitted HF power (depending on the parameter setting)
11)
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 temperature
-40 … +80 °C (-40 … +176 °F)
Storage and transport temperature
-40 … +80 °C (-40 … +176 °F)
Mechanical environmental conditions
Vibrations
4 g acc. to GL/E10
Impacts (mechanical shock)
Class 6M4 acc. to IEC 60271-3-6 (50 g, 2.3 ms)
Impact resistance
IK07 acc. to IEC 62262
8)
In case of deviations from reference conditions, the offset due to installation can be up to +/- 4 mm. This offset
can be compensated by the adjustment.
9)
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.
10)
Outside the specified beam angle, the energy level of the radar signal is 50% (-3 dB) less.
11)
EIRP: Equivalent Isotropic Radiated Power
