Vega VEGAPULS 66 Operating Instructions Manual page 56

10 Supplement
HART output values
Ʋ 1. HART value (Primary Value)
Ʋ 2. HART value (Secondary Value)
Resolution, digital
Input variable
Measured variable
Min. distance from antenna end
Measuring range
Reference conditions to measuring accuracy (according to DIN EN 60770-1)
Reference conditions according to DIN EN 61298-1
Ʋ Temperature
Ʋ Relative humidity
Ʋ Air pressure
Other reference conditions
Ʋ Reflector
Ʋ False reflections
Characteristics and performance data
Measuring frequency
Meas. interval approx.
Beam angle -3 dB dependent on the antenna system
9)
Ʋ without horn antenna
Ʋ ø 75 mm (2.953 in)
Ʋ ø 96 mm (3.78 in)
Ʋ ø 146 mm (5.748 in)
Ʋ ø 196 mm (7.717 in)
Ʋ ø 242 mm (9.528 in)
Step response or adjustment time
Max. level change
Max. emitted HF power of the antenna system
Ʋ Pulse peak power approx.
Ʋ Pulse duration
Ʋ SAR value
11)
Measuring accuracy
Resolution, general
Corresponds to the range with 50 % of the emitted power
9)
Time to output the correct level (with max. 10 % deviation) after a sudden level change.
10)
At the aperture of a horn antenna with ø 150 mm
11)
56
Distance to the level
Distance to the level - scaled (for example hl, %)
> 1 mm (0.039 in)
distance between process fitting and product surface
100 mm (4 in)
up to 35 m (114.83 ft)
+18 ... +30 °C (+64 ... +86 °F)
45 ... 75 %
860 ... 1060 mbar/86 ... 106 kPa (12.5 ... 15.4 psig)
Ideal reflector, e.g. metal plate 2 x 2 m
Biggest false signal, 20 dB smaller than the useful signal
C-band (6 GHz technology)
1 s
38°
38°
30°
20°
17°
14°
> 1 s (dependent on the parameter setting)
10)
Adjustable up to 1 m/min. (dependent on the parameter
settings)
0.1 mW
< 2 ns
0.471 mW/kg
max. 1 mm (0.039 in)
VEGAPULS 66 • 4 ... 20 mA/HART - two-wire