VEGA VEGAPULS 63 (≥ 2.0.0 - ≤ 3.8) Profibus PA - Manual (Page 50)

Measuring accuracy
Resolution, general max. 1 mm (0.039 in)
Deviation 8) see diagrams
0,5 m (1.6 ft) 20 m (65.62 ft)
10 mm (0.394 in)
3 mm (0.116 in)
- 3 mm (- 0.116 in)
- 10 mm (- 0.394 in)
0
Fig. 32: Deviation VEGAPULS 63
1,0 m (3.280 ft) 20 m (65.62 ft)
30 mm (1.180 in)
15 mm (0.590 in)
- 15 mm (- 0.590 in)
- 30 mm (- 1.180 in)
0
Fig. 33: Deviation VEGAPULS 63 with increased sensitivity in mm, measuring range in m
Influence of the ambient temperature to the sensor electronics 9)
Average temperature coefficient of the zero
signal (temperature error) 0.03 %/10 K
Influence of the superimposed gas and pressure to the accuracy
The spreading speed of the radar impulses in gas or vapour above the product is reduced by high
pressures. This effect depends on the superimposed gas or vapour and increases with low
temperatures. The following chart shows the deviation caused by some typical gases or vapours.
The stated values refer to the distance. Positive values mean that the measured distance is too
high, negative values that the measured distance is too small.
8) Incl. non-linearity, hysteresis and non-repeatability.
9) Relating to the nominal measuring range, in the temperature range
-40 … +80 °C .
50 VEGAPULS 63 • Profibus PA
10 Annex
28446
-EN
-120530