VEGA VEGAPULS SR 68 Modbus and Levelmaster protocol - Manual (Page 66)

66
10 Supplement
VEGAPULS SR 68 • Modbus and Levelmaster protocol
41371-EN-130624
3
4
2
1
Fig. 50: Data of the input variable
1 Reference plane
2 Measured variable, max. measuring range
3 Antenna length
4 Useful measuring range
Max. measuring range 30 m (98.43 ft)
Recommended meas. range depending on the antenna diameter
Ʋ ø 40 mm (1.575 in) up to 15 m (49.21 ft)
Ʋ ø 48 mm (1.89 in) up to 20 m (65.62 ft)
Ʋ ø 75 mm (2.953 in), 95 mm (3.74 in) up to 30 m (98.43 ft)
Ʋ Parabolic antenna up to 30 m (98.43 ft)
Output variable
Output
Ʋ Physical layer Digital output signal according to standard EIA-485
Ʋ Bus specifications Modbus Application Protocol V1.1b, Modbus over serial
line V1.02
Ʋ Data protocols Modbus RTU, Modbus ASCII, Levelmaster
Max. transmission rate 19.2 Kbit/s
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)