VEGA VEGAPULS 68 (≥ 2.0.0 - ≤ 3.8) 4 … 20 mA_HART two-wire - Manual (Page 14)

1
Fig. 4: Position of the polarisation plane with VEGAPULS 68
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 preparations - Horn antenna
Information:
T
his information applies only to special versions!
VEGAPULS 68 is also available in versions where the antenna has a
bigger diameter than the process fitting (thread, flange). The antenna
must therefore be disconnected from the process fitting before
mounting. Proceed as follows:
1 L oosen the hexagon screws (3) on the antenna socket with an
A llen wrench (size 3)
2 R emove the antenna (4)
Note:
T
he plastic conemust not be pulled out of the antenna socket.
3 I nsert the antenna from below into the vessel socket and secure it
against falling off
4 R etighten the antenna with hexagon screws to the antenna socket;
torque max. 10 Nm (7.5 lbf ft)
Suitability for process
conditions
14 VEGAPULS 68 • 4 … 20 mA/HART two-wire
4 M ounting
29261
-EN
-090305