Scanning Hot Metal Detector with Bargraph & Laser line

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Scanning Hot Metal Detector with Bargraph & Laser line


Rota-Sonde DC4500

The scanning optical system, in association with state-of-the-art infrared photocell technology, is the optimal solution for accurate, fast and reliable detection of product, whatever its size and its temperature. The Scanning Hot Metal Detector Rota-Sonde DC works under adverse conditions such as water, steam, dust or scale. It is particularly well adapted to applications where the change of the process results in a significant variation of the temperature of the product or a variation of its emissivity factor.

The Rota-Sonde DC4500 is a scanning sensor, which is sensitive to the infrared radiation emitted by hot products.
It is a self-contained detector including:

  • An optoelectronic case with heavy duty connector.
  • A protecting hood with air purging.
  • A cooling plate with an adjustable mounting stand.

Thanks to its design and particularly its cast aluminium housing, the Rota-Sonde DC4500 is specially adapted for the harsh environment of the Steel Industry (shocks, vibrations, heat, vapour and dust).


  • High detection accuracy thanks to the narrow lateral field: independent of product temperature, size or position.
  • Reliable detection even in the presence of steam or dust thanks to the small analysing beam.
  • Easy alignment of the sensor with integrated laser line (model –LL) or laser pointer (model –LP).
  • Easy setup with integrated LED bar-graphs: signal amplitude and detection thresholds.
  • Extensive diagnostic features including display of alarm and low detection margin signals.
  • High sensitivity: 180 °C / 360 °F.
  • 2 sensitivity ranges with on line selection.
  • Shutter with 2 fixed apertures: 2 mm for usual applications and 0.7 mm for high temperature applications.
  • Easy maintenance: very quick access to window glass, rapid exchange of the sensor.
  • Direct replacement of DELTA models Rota-Sonde DC3000 and DC4000.
  • Remote setting and diagnostic with optional junction box CR4500DC, when access to sensor is not easy.
  • Choice between relay output (DC45x0-xx) and static relay output (DC45x6-xx)