Endress+Hauser Micropilot FMR20 - Use of Flooding Protection Tube

Micropilot FMR20 HART Installation
Endress+Hauser 19
A0046286
 10 Weather protection cover
The sensor is not completely covered by the weather protection cover.
5.1.8 Use of flooding protection tube
In free-field installations and/or in applications where there is a risk of flooding, the
flooding protection tube must be used.
Optimum results are achieved with coarse-grained material and the use of the flooding
protection tube.
The flooding protection tube can be ordered as an accessory or together with the device via
the product structure "Accessory enclosed".
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A0045326
 11 Function of flooding protection tube
1 Empty space
2 O-ring (EPDM) seal
3 Blocking distance
4 Max. level
The tube is screwed directly onto the sensor and seals off the system by means of an O-
ring making it air-tight. In the event of flooding, the empty space that develops in the tube