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12
4 Mounting
VEGAPULS Air 41 • Autarkic device with measured value transmission via radio technology
64808-EN-210426
4 Mounting
4.1 General instructions
The instrument is suitable for standard and extended ambient condi-
tions acc. to DIN/EN/IEC/ANSI/ISA/UL/CSA 61010-1. It can be used
indoors as well as outdoors.
Note:
For safety reasons, the instrument must only be operated within the
permissible process conditions. You can find detailed information on
the process conditions in chapter "
Technical data
" of the operating
instructions or on the type label.
Hence make sure before mounting that all parts of the instrument ex-
posed to the process are suitable for the existing process conditions.
An activated device (see chapter "
Activate device
") also carries
out measurements in horizontal alignment. This also applies if it is
mounted on a mobile container and the container is transported in a
tilted state.
Note:
When mounting the device in a mobile container, ensure that it is
protected against damage throughout transport.
4.2 Mounting instructions
Radar sensors for level measurement emit electromagnetic waves.
The polarization is the direction of the electrical component of these
waves.
The position of the polarisation is in the middle of the type label on the
instrument.
1
Fig. 5: Position of the polarisation
1 Middle of the type label
Note:
When the device is rotated, the direction of polarization changes and
hence the influence of the false echo on the measured value. Please
keep this in mind when mounting or making changes later.
When mounting the device, keep a distance of at least 200 mm
(7.874 in) from the vessel wall. If the device is installed in the center
of dished or round vessel tops, multiple echoes can arise. However,
these can be suppressed by an appropriate adjustment (see chapter
"
Setup
").
Ambient conditions
Process conditions
Measurement function
and transport
Polarisation
Installation position
Содержание VEGAPULS Air 41
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