Endress+Hauser Levelflex FMP51 Modbus Technical Information page 34

34
Securing the probe
Securing rope probes
C
2
A Sag of the rope: ≥ 1 cm per 1m of the probe length (0.12 inch per 1 ft of the probe length)
B Reliably grounded end of probe
C Reliably isolated end of probe
1: Mounting and contact with a bolt
2 Mounting kit isolated
• The end of the probe needs to be secured under the following conditions:
if otherwise the probe sporadically comes into contact with the wall of the vessel, the outlet cone,
internal fittings or other parts of the installation.
• The end of probe can be secured at its internal thread
rope 4 mm (1/6"), 316: M 14
• The fixing must be either reliably grounded or reliably insulated. If it is not possible to mount the
probe weight with a reliably insulated connection, it can be secured using an isolated eyelet, which
is available as an accessory.
• In order to prevent an extremely high tensile load (e.g. due to thermal expansion) and the risk of
rope crack, the rope has to be slack. Make the rope longer than the required measuring range such
that there is a sag in the middle of the rope that is ≥ 1cm/(1 m rope length) [0.12 inch/(1 ft rope
length)].
Tensile load limit of rope probes: →  28
Levelflex FMP51 Modbus
B
1
A0012609
Endress+Hauser