11
4 Mounting
VEGAPULS C 21 • SDI-12
58342-EN-200121
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.
These are mainly:
•
Active measuring component
•
Process fitting
•
Process seal
Process conditions in particular are:
•
Process pressure
•
Process temperature
•
Chemical properties of the medium
•
Abrasion and mechanical influences
4.2 Mounting versions
For a rigid mounting, a mounting bracket with opening for thread G1½
is recommended. The mounting of the sensor in the bracket is carried
out via a G1½ counter nut of plastic. Take note of chapter "
Mounting
instructions
" for the recommended distance to the wall.
> 200 mm
(7.87")
Fig. 5: Mounting via a mounting bracket
4.3 Mounting instructions
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 mounting strap, the polarisation
can be used to reduce the effects of false echoes.
Ambient conditions
Process conditions
Mounting bracket
Polarisation
