Molten metal level sensor | Radar level control of steel & aluminum

The level control of molten metal requires reliable, high-performance sensors. With the OndoSense radar sensors, the fill level of liquid steel or aluminum can be measured contact-free with sub-millimeter accuracy, even at metal temperatures of up to 1600 degrees Celsius. Dust, steam, smoke, vibrations and strong heat radiation have no influence on the high precision and reliability of the radar-based molten metal level measurement. In addition, our radar technology enables a precise and quick level control of molten metal from a distance of up to 15 meters. Active cooling of the level radar is usually not necessary. However, OndoSense offers a protective housing with optional air cooling, if required.

Our radar sensors are suitable for the level measurement of liquid metal in melting furnaces and crucibles, in launder systems, in steel ladles, ladle cars and casting molds as well as in direct chill (DC) or die casting of slabs and many other applications. Benefit from the advantages of our radar technology for the level control of molten steel, aluminum, copper as well as various other ferrous and non-ferrous metals!

Productive.
Fast integration of level control.
- Production gain through uncomplicated integration: Our innovative, robust radar technology makes molten metal level control easy and reliable.
- Cost savings through optimized raw material consumption using accurate metal level measurement.
Profitable.
Minimal maintenance with radar.
- High durability and low probability of failure: Radar has no moving parts and works contactless.
- Very little cleaning required: our radar level sensor measures even when the lens is dirty or behind a protective ceramic window.
Reliable.
Robust, reliable level measurement.
- Highest measurement reliability: The radar sensor measures the molten metal level very accurately, even with dust, ash, water vapor or heat.
- The high measurement rate of the OndoSense radar sensors enables quick, reliable process adjustments.

Molten metal level measurement
Measurement accuracy	Sub-millimeter: up to 0.1 mm
Measurement range	0.1 to 15 m
Measurement rate	up to 500 Hz
Possible environmental conditions	Heavy dust (e. g. graphite, ash), water vapour, vibration, reflections, difficult lighting conditions, heat (up to 1600 degree Celsius)
Outputs & interfaces	Profinet, analog current loop (4–20 mA), digital switching outputs (3x push-pull)
Measured products	All ferrous and non-ferrous molten metals, e.g.: cast iron, steel, cobalt, nickel, copper, aluminum, zinc, nickel, lead, magnesium, gold, silver or titanium
Application focus	Molten metal level control in melting furnaces, crucibles, casting molds, ladles, ladle transfer carts, launder systems as well as level measurement in DC casting or die casting for slabs and ingots