8
3 Mounting
VEGAFLEX 82 • 4 … 20 mA/HART - four-wire
47593-EN-140324
Plastic vessel/Glass vessel
The guided microwave principle requires a metallic surface on the
process fitting. Therefore, in plastic vessels, etc., use an instru-
ment version with flange (from DN 50) or place a metal sheet
(ø > 200 mm/8 in) beneath the process fitting when screwing it in.
Make sure that the plate has direct contact with the process fitting.
When installing rod or cable probes without metal vessel wall, e.g.
in plastic vessels, the measured value can be influenced by strong
electromagnetic fields (emitted interference according to EN 61326:
class A).
Use a probe in coax version for applications in liquids.
1
2
Fig. 3: Installation in non-metallic vessel
1 Flange
2 Metal sheet
Concrete vessel
When installed in thick concrete ceilings, VEGAFLEX 82 should be
mounted front flush to the lower edge. In concrete silos, the distance
to the wall should be at least 500 mm (20 in).
Type of vessel
