Vega VEGAPULS 69 Quick Setup Manual - 3 Mounting
8
3 Mounting
VEGAPULS 69 • 4 … 20 mA/HART - four-wire
47255-EN-140801
3 Mounting
3.1 Mounting preparations, mounting strap
The strap is supplied unassembled and must be screwed to the
sensor before setup with three hexagon screws M5 x 10 and spring
washers. Max. torque, see chapter "Technicaldata". Required tools:
Allenwrenchsize4.
There are two ways to screw the strap onto the sensor. Depending
on the selected version, the sensors can be swivelled in the strap as
follows:
•
Single chamber housing
– Angleofinclination180°,infinitelyvariable
– Angle of inclination in three steps 0°, 90° and 180°
•
Double chamber housing
– Angleofinclination90°,infinitelyvariable
– Angle of inclination in two steps 0° and 90°
3.2 Mounting instructions
Radar sensors for level measurement emit electromagnetic waves.
Thepolarizationisthedirectionoftheelectricalcomponentofthese
waves.
Thepolarizationdirectionismarkedbyanoseonthehousing,see
following drawing:
1
Fig. 2: Position of the polarisation
1 Nose for marking the direction of polarisation
Information:
Whenthehousingisrotated,thedirectionofpolarizationchanges
andhencetheinfluenceofthefalseechoonthemeasuredvalue.
Please keep this in mind when mounting or making changes later.
Mount the sensor at least 200 mm (7.874 in) away from the vessel
wall.
Polarisation
Installation position