VEGA VEGAFLEX 81 4 … 20 mA_HART two-wire - Manual (Page 81)

81
11 Supplement
VEGAFLEX 81 • 4 … 20 mA/HART two-wire
41824-EN-130612
Ʋ Cable probes ε
r
≥ 1.6
Ʋ Rod probes ε
r
≥ 1.6
2
4
5
3
2
4
5
3
1 1
Fig. 47: Measuring ranges - VEGAFLEX 81
1 Reference plane
2 Probe length L
3 Measuring range (default setting refers to the measuring range in water)
4 Upper dead band (see diagrams under Accuracy - grey section)
5 Lower dead band (see diagrams under Accuracy - grey section)
Output variable
Output signal
4 … 20 mA/HART
Range of the output signal 3.8 … 20.5 mA/HART (default setting)
Fulfilled HART specification 7
Signal resolution 0.3 µA
Failure signal current output (adjustable) Last valid measured value, ≥ 21 mA, ≤ 3.6 mA