Table 3-3: Tensile Load for Unanchored 0.24 in. (6 mm) Flexible Single Lead Probe, lb
(kN)
Material Probe length 49 ft. (15 m) Probe length 115 ft. (35 m)
Tank Ø= 10 ft. (3
m)
Tank Ø= 39 ft.
(12 m)
Tank Ø= 10 ft. (3
m)
Tank Ø= 39 ft.
(12 m)
Wheat 900 (4) 1690 (7.5) 2810 (12.5) 6740 (30)
(1)
Polypropylene
Pellets
450 (2) 920(4.1) 1190 (5.3) 3510 (15.6)
Cement 1350 (6) 2920 (13) 3600 (16) 10790 (48)
(1)
(1) Exceeds tensile strength limit.
Note
For environments where electrostatic discharges are likely to occur, such as plastic pellets,
it is recommended that the probe end is grounded.
3.2.4
Free space requirement
For easy access to the transmitter, make sure it is mounted with sufficient service space.
For maximum measurement performance, the transmitter should not be mounted close
to the tank wall or near other objects in the tank.
If the probe is mounted close to a wall, nozzle or other tank obstruction, noise might
appear in the level signal. Therefore the following minimum clearance, according to Table
3-4, must be maintained.
Figure 3-3: Free Space Requirement
L.
Clearance to tank wall
Mechanical installation Reference Manual
April 2019 00809-0100-4530
32 Rosemount 5300 Level Transmitter
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