VEGA VEGAPULS WL 61 Foundation Fieldbus - Manual (Page 38)

38
9 Supplement
VEGAPULS WL 61 • Foundation Fieldbus
38063-EN-121011
3
4 2
1
Fig. 40: Data of the input variable
1 Reference plane
2 Measured variable, max. measuring range
3 Antenna length
4 Useful measuring range
Max. measuring range 15 m (49.21 ft)
Output variable
Output
Ʋ Signal digital output signal, Foundation Fieldbus protocol
Ʋ Physical layer according to IEC 61158-2
Damping (63 % of the input variable) 0 … 999 s, adjustable
Channel Numbers
Ʋ Channel 1 Process value
Ʋ Channel 8 Electronics temperature
Ʋ Channel 9 Count rate
Transmission rate 31.25 Kbit/s
Current value
Ʋ Non-Ex and Ex ia instrument 10 mA, ±0.5 mA
Ʋ Ex d instruments 16 mA, ±0.5 mA
Resolution, digital > 1 mm (0.039 in)
Accuracy (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Ʋ Temperature +18 … +30 °C (+64 … +86 °F)
Ʋ Relative humidity 45 … 75 %
Ʋ Air pressure 860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig)
Installation reference conditions
Ʋ Min. distance to installations > 200 mm (7.874 in)
Ʋ Reflector Plane plate reflector