Vega VEGAPULS 61 Operating Instructions Manual page 71

Ʋ Channel 8
Ʋ Channel 9
Transmission rate
Current value
Ʋ Non-Ex and Ex ia instrument
Ʋ Ex-d-ia instruments
Resolution, digital
Accuracy (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Ʋ Temperature
Ʋ Relative humidity
Ʋ Air pressure
Installation reference conditions
Ʋ Min. distance to internal installations
Ʋ Reflector
Ʋ False reflections
Deviation with liquids
10 mm (0.394 in)
2 mm (0.079 in)
0
- 2 mm (- 0.079 in)
- 10 mm (- 0.394 in)
Fig. 55: Deviation under reference conditions - encapsulated antenna system
1 Reference plane
2 Antenna edge
3 Recommended measuring range
VEGAPULS 61 • Foundation Fieldbus
0,5 m (1.6 ft)
1 2
Electronics temperature
Count rate
31.25 Kbit/s
10 mA, ±0.5 mA
16 mA, ±0.5 mA
> 1 mm (0.039 in)
+18 ... +30 °C (+64 ... +86 °F)
45 ... 75 %
860 ... 1060 mbar/86 ... 106 kPa (12.5 ... 15.4 psig)
> 200 mm (7.874 in)
Flat plate reflector
Biggest false signal, 20 dB smaller than the useful signal
See following diagrams
11 Supplement
3
71