VEGA VEGAPULS 66 (≥ 2.0.0 - ≤ 3.8) 4 … 20 mA_HART four-wire - Manual (Page 14)

1
Fig. 4: Position of the polarisation plane with VEGAPULS 66
1 Marking hole
M ake sure that all parts of the instrument in contact with the measured
product, especially the sensor element, process seal and process
fi
tting, are suitable for the existing process conditions such as process
pressure, process temperature as well as the chemical properties of
the medium.
Y ou can find the specifications in chapter "Technical data" in the or on
the type label.
4.2 Mounting instructions
W hen mounting VEGAPULS 66, keep a distance of at least 500 mm
(19.69 in) to the vessel wall. If the sensor is installed in the center of
dished or round vessel tops, multiple echoes can arise. These can,
however, be suppressed by an appropriate adjustment (see chapter
"
Setup").
I f you cannot keep this distance you should carry out a false echo
storage before setup. This applies mainly if buildup on the vessel wall
is expected. In this case, we recommend repeating a false echo
storage later with existing buildup.
Suitability for process
conditions
Mounting position
14 VEGAPULS 66 • 4 … 20 mA/HART four-wire
4 M ounting
28443
-EN
-090305