Level Measurement for Fine Ore Bins in Metal Ore Processing
Accurately measure levels in fine ore bins to supply fast-moving sifting and filtering applications
Continuously Monitor Bin Levels with Radar Technologies
Fine ore bins are part of an ore sifting process. The materials are fed into the bins and filter out through sieves onto conveyor systems. The particle size varies but tends to be smaller rocks and dust. The bins are used as a surge for the process, so the contents may not move until there is a need for them. At that time, the level change can be rapid as the bin empties onto conveyor belts. The contents of the bin are dusty and with uneven surface creating challenges in accurately measuring material levels. In addition, level changes can be fast for both the filling and emptying portions of the sequence.
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Product Solutions
The Rosemount™ 5408 Non-Contacting Radar Level Transmitter uses enhanced technology and Human Centered Design to deliver accurate, reliable measurements on both liquid and solid materials. Using two-wire FMCW technology the Rosemount 5408 deploys a continuous echo to maximize radar signal strength and produce a more robust and reliable measurement. Delivering ease-of-use at every touch point, the Rosemount 5408 uses an intuitive software interface to guide the operator through installation, commissioning, proof-testing and maintenance. Powerful onboard diagnostics suite proactively monitors transmitter health and alerts if there is an issue. Safety certified to IEC 61508 for SIL 2 applications, the Rosemount 5408:SIS reduces cost of risk, increases efficiency and protects people and the environment.
- Low 12V dc lift-off voltage
- Immune to intermittent power loss
- Unique PTFE seal design eliminates the need for o-rings
Accuracy
Standard: ± 0.08 in. (± 2 mm)
Ultra accuracy: ± 0.04in. (± 1mm)
Ultra accuracy: ± 0.04in. (± 1mm)
Measurement Range
492 ft (150m), 82 ft (25 m) for Rosemount 5408:SIS in Safety mode
Operating Pressure
-15 to 1450 psi (-1 to 100 bar)
Rosemount solids level switches provide flexible measurement of powders, grains, and pellets. Their compact size makes them suitable for installation in all sizes of vessels and silos. Four different technologies are available, so you can find the right solution for your process.
- Rosemount solid switches are maintenance free
- Rotatable and robust die-cast aluminium housing that allows orientation of electrical connection after mechanical installation
- Rosemount solid switches are insensitive to temperature or pressure changes
Dimensions
Extension Lengths:
2501 - ≤ (157") for extended tube, ≤ 10,000 mm (393") for rope version
2511 - ≤ (157")
2521 - ≤ (157") for extended tube, ≤ 20,000 mm (787.4") for cable version
2535 -≤ (157")
2555 - ≤ 20,000 mm (78,.7) for rod version, ≤ 20,000 mm (787.4") for rope and remote versions
2501 - ≤ (157") for extended tube, ≤ 10,000 mm (393") for rope version
2511 - ≤ (157")
2521 - ≤ (157") for extended tube, ≤ 20,000 mm (787.4") for cable version
2535 -≤ (157")
2555 - ≤ 20,000 mm (78,.7) for rod version, ≤ 20,000 mm (787.4") for rope and remote versions
Sensitivity
2501 - For media ≥ 15 g/l
2511 - For media ≥ 30 g/l
2521 - For media ≤ 5 g/l
2535 -For media ≥ 20 g/l
2555 - For media DC* ≥1.5
2511 - For media ≥ 30 g/l
2521 - For media ≤ 5 g/l
2535 -For media ≥ 20 g/l
2555 - For media DC* ≥1.5
Process Temperature
2501 - Temp. ≤ 1100°C
2511 - Temp. ≤ 150°C
2521 - Temp. ≤ 150°C
2535 - Temp. ≤ 150°C
2555 - Temp. ≤ 500°C
2511 - Temp. ≤ 150°C
2521 - Temp. ≤ 150°C
2535 - Temp. ≤ 150°C
2555 - Temp. ≤ 500°C
