The Rota-Sonde DC3000 is a scanning hot metal detector for continuous caster and rolling mill applications, offering two sensitivity ranges and two self-monitoring functions.
The “high sensitivity” range enables detection of steel product at a temperature as low as 480 °F.
In this way, the Rota-Sonde DC3000 is convenient for all hot metal detection applications in the Steel Industry and its self-monitoring facility optimizes preventive maintenance.
Examples of applications
The Rota-Sonde DC3000 is perfectly suitable for all detection applications of low-temperature rolled product or low emissivity materials such as hafnium.
It is also convenient for applications where a change in the process or material leads to major variations in the temperature of the product or its emissivity, as after quenching, or for special steels, etc…
If the apparent temperature of the material is uncertain during the design stage, the choice of the sensitivity range of the Rota-Sonde DC3000 can be selected during commissioning.
The Rota-Sonde DC3000 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 an air purged protective hood.
- A cooling plate with an adjustable mounting stand.
Because of its design, particularly its cast aluminum case, the Rota-Sonde DC3000 is specially adapted for the harsh environment of the Steel Industry (impacts, vibrations, heat, vapor and dust).
1. Scanning system
The detection field is scanned by a rotating polygonal mirror which reflects the infrared radiation from the product to the photocell.
Because of the exclusive optical scanning principle, the Rota-Sonde DC3000 offers the following advantages:
- Easy alignment and reliable detection, regardless of the transverse position of the product, thanks to the large vertical field angle.
- Accurate detection because of the narrow lateral field.
- Reliable detection due to the small analyzing beam.
All these features give accurate and reliable detection, whatever the dimensions and the temperature of the product, or its distance and its position in the scanned field