Optical Temperature Measurement of Aluminium
The document discusses the challenges and solutions for measuring the temperature of aluminium using optical methods. Aluminium's low emissivity and variable surface properties make it difficult to measure temperature accurately with standard pyrometers. Keller Pyrometer Systems has developed a patented short-wave measuring pyrometer that can detect low infrared radiation levels, even at low temperatures, using advanced optics and signal processing.

Patented Measuring Method for Low Temperatures
The pyrometer uses a combination of light-intensive optics, a sensitive photodiode, and adaptive software to measure temperatures as low as 75°C, even with low emissivity metals. This is crucial for processes like forging, rolling, and extrusion where precise temperature control is necessary.

Aluminium Forging and Extrusion
Temperature control is critical in aluminium forging and extrusion to ensure quality and prevent defects. The document highlights the importance of maintaining a constant process temperature to avoid issues like hot or transverse cracks.

Measuring Solutions
The CellaTEMP® series of pyrometers are recommended for different temperature ranges and conditions. These devices use the EERC algorithm to ensure reliable measurements across various aluminium alloys and surface conditions. They are equipped with features like through-the-lens sighting, laser pilot lights, and video cameras for precise alignment.

IO-Link Interface Technology
The pyrometers are equipped with IO-Link interfaces, allowing easy integration into automation systems. This technology supports consistent communication from field level to ERP systems, enabling dynamic adjustment of pyrometer settings based on operating conditions.

Mountings and Accessories
The document lists various mounting options and accessories for the pyrometers, including cooling jackets, air purges, and mounting brackets, to ensure optimal performance in different industrial settings.

International Sales and Standards
Keller HCW GmbH provides international sales and service support, with compliance to standards like DIN EN ISO 9001, 14001, and 50001.