14
4 Mounting
VEGAPULS WL 61 • Profibus PA
38062-EN-140801
You can find drawings of these mounting options in chapter "
Dimen-
sions
".
Fig. 8: Mounting by means of an adapter flange, for example, on a manhole lid.
4.3 Mounting preparations, mounting strap
The optional mounting strap is supplied unassembled. It must be
screwed to the sensor before setup with the attached screws. Max.
torque, see chapter "
Technical data
". Required tools: Allen wrench
size 4.
There are two different variants of screwing the strap to the sensor.
Depending on the selected variant, the sensor can be rotated in the
strap infinitely variable through 180° or in three steps 0°, 90° and
180°.
4.4 Mounting instructions
For tight installation of the version with plastic horn antenna with com-
pression or adapter flange, the following conditions must be fulfilled:
1. Use suitable flat seal, e.g. of EPDM with Shore hardness 25 or 50
2. Make sure the number of flange screws corresponds to the num-
ber of flange holes
3. Tighten all screws with the torque stated in the technical data
The emitted radar impulses of the radar sensor are electromagnetic
waves. The polarisation is the direction of the electrical wave compo-
nent. By turning the instrument in the connection flange or mounting
strap, the polarisation can be used to reduce the effects of false
echoes.
The position of the polarisation is marked by marking bars on the
instrument.
Tight installation of the
plastic horn antenna
Polarisation
