Additional Mounting Hints - Endress+Hauser Levelflex FMP56 Manual

Levelflex FMP56, FMP57

Additional mounting hints

Endress+Hauser
Ordering information: Feature 600 "Probe Design", Option MB "Sensor remote, 3m/9ft cable" (® ä 47).
Dimensions (® ä 34).
Bending strength of rod probes
Sensor Feature 060
FMP57 AE, AF
Tensile load limit of rope probes
Sensor Feature 060 Probe
FMP56 LA, LB Rope 4mm (1/6") 316
NB, NE Rope 6mm (1/4") PA>Steel
FMP57 LA, LB Rope 4mm (1/6") 316
LC, LD Rope 6mm (1/4") 316
NB, NE Rope 6mm (1/4") PA>Steel
NC, NF Rope 8mm (1/3") PA>Steel
1) The ceiling of the silo must be designed to withstand this load.
Tensile load
Bulk solids exert tensile forces on rope probes whose height increases with:
• the length of the probe, i.e. max. cover
• the bulk density of the product,
• the silo diameter and
• the diameter of the probe rope
The following diagrams show typical loads for frequently occurring bulk solids as reference values. The
calculation is performed for the following conditions:
• Suspended probe (probe end not fixed at the bottom)
• Free-flowing bulk solid, i.e. mass flow. A calculation for core flow is not possible. In the event of collapsing
cornices, considerably higher loads can occur.
• The specification for tensile forces contains the safety factor 2, which compensates for the normal fluctuation
range in pourable bulk solids.
Probe
Rod 16mm (0.63") 316L
Tensile load limit [kN]
12
12
12
30
12
30
Bending strength [Nm]
30
Max. rupture load [kN]
16
16
16
35
16
35
1)
21