VEGA VEGAPULS 68 (≥ 2.0.0 - ≤ 3.8) 4 … 20 mA_HART two-wire User Manual
Page 58
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M
ax. level change
A
djustable up to 1 m/min. (dependent on the
parameter adjustment)
M
ax. emitted HF power of the antenna system
-
P
ulse peak power
<
10
mW
-
P
ulse duration
<
2
ns
-
A
verage power
<
25 µW
-
A
verage power with 1 m distance
<
1 µW/
cm
2
Measuring accuracy
R
esolution, general
max. 1 mm (0.039 in)
D
eviation
4)
see diagrams
30 mm (1.180 in)
15 mm (0.590 in)
0
-15 mm (- 0.590 in)
- 30 mm (- 1.180 in)
1,0 m (3.280 ft)
70 m (229.7 ft)
Fig. 38: Deviation VEGAPULS 68 with horn antenna
2,0 m (6.562 ft)
70 m (229,7 ft)
40 mm (1.574 in)
15 mm (0.590 in)
- 15 mm (- 0.590 in)
- 40 mm (- 1.574 in)
0
Fig. 39: Accuracy VEGAPULS 68 with parabolic antenna
4)
I
ncl. non-linearity, hysteresis and non-repeatability.
58
VEGAPULS
68 • 4 … 20
mA/HART two-wire
10 S
upplement
29261
-EN
-090305
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