23
4 Mounting
VEGAPULS SR 68 • 4 … 20 mA/HART - two-wire
38294-EN-160707
If there are agitators in the vessel, a false signal suppression should
be carried out with the agitators in motion. This ensures that the
interfering reflections from the agitators are saved with the blades in
different positions.
Fig. 17: Agitators
Large material heaps are detected with several sensors, which can be
mounted on e.g. traverse cranes. For this type of application, it is best
to orient the sensor toward the solid surface. A mutual infuence of the
sensors is not possible.
Fig. 18: Radar sensors on traverse crane
Information:
Keep in mind that for these applications, the sensors are designed
for relatively slow level changes. When using VEGAPULS SR 68 on
a movable bracket, the max. measuring rate must be observed (see
chapter "
Technical data
").
Instruments for a temperature range up to 250 °C or up to 450 °C
have a distance piece between process fitting and electronics hous
-
ing. Ths distance piece is used for thermal decoupling of the electron-
ics against high process temperatures.
Agitators
Material heaps
Mounting in the vessel
insulation