Endress+Hauser Levelflex FMP51 Operating Instructions Manual page 24

Mounting
6.4.2 Non-metallic vessels
1 Non-metallic vessel
2 Metal sheet or metal flange
To measure, Levelflex with a rod probe needs a metallic surface at the process connection.
Therefore:
• Select an instrument version with metal flange (minimum size DN50/2").
• Or: mount a metal sheet with a diameter of at least 200 mm (8") to the probe at the process
connection. Its orientation must be perpendicular to the probe.
No additional measures are required for coax probes.
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Levelflex FMP51, FMP52, FMP54
Endress+Hauser
A0012527