VEGA VEGAPULS 61 (≥ 2.0.0 - ≥ 4.0.0) 4 … 20 mA_HART - two-wire Approval according to LPR radio standard User Manual
Page 70
Load
see load diagram under Power supply
Damping (63 % of the input variable),
adjustable
0 … 999 s
HART output values according to HART 7.0
1)
-
PV (Primary Value)
Distance to the level
-
SV (Secondary Value)
Level as percentage value
-
TV (Third Value)
Linearised percentage value
-
QV (Fourth Value)
Scaled measured value
Resolution, digital
<
1 mm (0.039 in)
Accuracy (according to DIN EN 60770-1)
Process 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)
Installation reference conditions
-
Min. distance to installations
>
200 mm (7.874 in)
-
Reflector
Corner reflector
-
False reflections
Largest false echo 20 dB smaller than the useful
echo
Deviation with liquids
See following diagrams
0,5 m (1.6 ft)
10 mm (0.394 in)
- 10 mm (- 0.394 in)
2 mm (0.079 in)
- 2 mm (- 0.079 in)
0
1 2
3
Fig. 51: Deviation under reference conditions - encapsulated antenna system
1
Reference plane
2
Antenna edge
3
Recommended measuring range
1)
Default values, can be assigned individually
70
VEGAPULS
61 • Approval according to LPR radio standard
11 Supplement
41713
-EN
-120301