VEGA VEGASON 64 4 … 20 mA_HART four-wire - Manual (Page 22)

I f there are strong air currents in the vessel, e.g. due to strong winds in
outdoor installations or air turbulence, e.g. by cyclone extraction you
should mount VEGASON 64 in a standpipe or use a different
measuring principle, e.g. radar or guided radar (TDR).
S trong heat fluctuations, e.g. caused by the sun, can cause
measurement errors. In this case, you should use a sun shield.
Fig. 17: Heat fluctuations
Air turbulences
Heat fluctuations
22 VEGASON 64 • 4 … 20 mA/HART four-wire
4 M ounting
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