Alutal Measure & Trust

Optical Pyrometer - CellaCast® PA 81(800 – 2400 °C)

The CellaCast PA 81 was specially developed for measuring the temperature of liquid metals in the casting channels of blast furnaces and cupola furnaces. Furthermore, the pyrometer is used when transferring the metal from the melting or holding furnace into the transport ladle or casting ladle. The two-colour pyrometer is equipped with a separate optical measuring head and a fibre optic cable. The fibre optic cable and measuring head are insensitive to interference from electromagnetic radiation and can be used in ambient temperatures up to 250 °C without cooling. The variant with separate optical measuring head has advantages especially in confined spaces.

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The product

Special features:

  • Measuring range 800 to 2,400 °C
  • wear-free and maintenance-free measuring system for temperature measurement in melting and holding furnaces as well as cupolas and blast furnaces
  • ATD function for filtering the temperature of the slag-free and oxide-free metal surface
  • two-colour measuring method for interference-free measurement in the presence of dust and vapour
  • high-resolution lens for reliable measurement even from a great distance
  • measuring head and fibre optic cable heat resistant up to 250 °C


CellaCast PA 81 AF 11

Measuring range

800 – 2400 °C

Focus distance

0,2 m – ∞

Shape of the measuring field


Distance ratio

190 : 1

Measuring head

PA 41.01

Measuring principle


Sighting option

Laser pilot light
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