4 Mounting
•
Protected against solar radiation
•
Avoiding mechanical shock and vibration
Storage and transport temperature
•
Storage and transport temperature see
chapter "Supplement - Technical data -
Ambient conditions"
•
Relative humidity 20 ... 85 %
Lifting and carrying
With instrument weights of more than 18 kg
(39.68 lbs) suitable and approved equipment
must be used for lifting and carrying.
4
Mounting
4.1
General instructions
Process conditions
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.
Make sure before mounting that all parts of the
instrument exposed 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
Straining clamp
Most simply mount the instrument via the
straining clamp. For this purpose, the connec-
tion cable is provided with a strain relief wire of
Kevlar.
In order to avoid faulty measured values, make
sure that the sensor does not oscillate.
26
> 200 mm
Abb. 16: Mounting via a straining clamp
Mounting bracket
For a rigid mounting, a mounting bracket with
opening for thread G1½, e.g. from the VEGA
product range, 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 distance to the
wall.
> 200 mm
(7.87")
Abb. 17: Mounting via a mounting bracket
4.3
Mounting instructions
Polarisation
The emitted radar impulses of the radar sensor
are electromagnetic waves. The polarisation is
the direction of the electrical wave component.
By turning the instrument in the mounting strap,
the polarisation can be used to reduce the
effects of false echoes.
The position of the polarisation is in the middle
of the type label on the instrument.
VEGAPULS WL S 61 • 4 ... 20 mA
(7.87")