VEGA VEGAPULS 62 (≥ 2.0.0 - ≥ 4.0.0) 4 … 20 mA_HART four-wire Approval according to LPR radio standard - Manual (Page 66)

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TV (Third Value) Linearised percentage value
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QV (Fourth Value) Scaled measured value
Resolution, digital < 1 mm (0.039 in)
Accuracy (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
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Temperature + 18 … +30 °C (+64 … +86 °F)
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Relative humidity 45 … 75 %
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Air pressure 860 … 1060 mbar/86 … 106 kPa (12.5 … 15.4 psig)
Installation reference conditions
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Min. distance to installations > 200 mm (7.874 in)
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Reflector Corner reflector
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False reflections Largest false echo 20 dB smaller than the useful
echo
Deviation with liquids See following diagrams
0,5 m (1.6 ft)
10 mm (0.394 in)
2 mm (0.079 in)
- 2 mm (- 0.079 in)
- 10 mm (- 0.394 in)
0
1 2 3
Fig. 44: Deviation under reference conditions
1 Reference plane
2 Antenna edge
3 Recommended measuring range
Reproducibility ≤ ± 1 mm
Deviation with bulk solids The values depend to a great extent on the
application. Binding specifications are thus not
possible.
Variables influencing measurement accuracy
Specifications apply to the HART signal and the current output
Temperature drift - Digital output ± 3 mm/10 K relating to the max. measuring range
or max. 10 mm
66 VEGAPULS 62 • Approval according to LPR radio standard
11 Supplement
41719
-EN
-120301