VEGA VEGAPULS 62 (≥ 2.0.0 - ≤ 3.8) standpipe ver. Profibus PA User Manual
Page 45
Reference conditions to measuring accuracy (similar to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
-
Temperature
+
18 … +30 °C (+64 … +86 °F)
-
Relative humidity
45 … 75 %
-
Air pressure
860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig)
Other reference conditions
-
Reflector
ideal reflector, e.g. metal plate 2 x 2 m
-
False reflections
Biggest false echo, 20 dB smaller than the useful
echo
Characteristics and performance data
Frequency
K-band (26 GHz technology)
Meas. interval approx.
1 s
Step response or adjustment time
7)
<
1 s (dependent on the parameter settings)
Max. level change
Adjustable up to 1 m/min. (dependent on the
parameter adjustment)
Max. emitted HF power of the antenna system
-
Pulse peak power
<
2 mW
-
Pulse duration
<
2 ns
-
Average power
<
5 µW
-
Average power with 1 m distance
<
200 nW/cm
2
Max. emitted HF power of the antenna system - Version with increased sensitivity
-
Pulse peak power
<
10 mW
-
Pulse duration
<
2 ns
-
Average power
<
25 µW
-
Average power with 1 m distance
<
1 µW/cm
2
Measuring accuracy
Resolution, general
<
1 mm (0.039 in)
Deviation
8)
see diagram
7)
Time to output the correct level (with max. 10 % deviation) after a sudden
level change.
8)
Incl. non-linearity, hysteresis and non-repeatability.
VEGAPULS
62 standpipe version • Profibus PA
45
10 Supplement
28739
-
EN
-090305