KROHNE BM 100A Handbook - Manual (Page 15)

Handbook BM 100 A 15
1.3.5 Specific
installation instructions: gauge - solid applications
False readings:
1
Do not let probe touch the side of the nozzle
Conical silo nozzles, False readings and traction on the cable probes
Caution
High traction forces :
2
We recommend that the probe should not be
anchored to avoid excessive traction loads on
the cable.
Bending and traction:
3
Position the connection on the roof at ½
radius of the tank and with minimum nozzle
height. This will avoid damage due to
bending and traction during emptying.
Traction forces during emptying cycles for powder applications
Traction load is dependent upon the height and shape of the tank, product particle size & density,
and the rate at which the tank is emptied. The table below gives the load at which cable probes will
break.
Cable maximum design loads, traction
Probe
Maximum Load
Type K : Single cable Ø8 mm / Ø 0.3” 3.5 T / 7700 lb
Type B : Twin cable Ø6 mm / Ø 0.2” 3.6 T / 7900 lb (1.8 T / 3950 lb per cable)