VEGA VEGAPULS SR 68 Foundation Fieldbus - Manual (Page 67)

67
11 Supplement
VEGAPULS SR 68 • Foundation Fieldbus
38297-EN-130624
3
4
2
1
Fig. 54: 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 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