Alutal Measure & Trust

Optical Pyrometer - CellaCrystal® PA 64 (500 – 1400 °C)

The CellaCrystal PA 64 has been developed for optical temperature measurement when growing crystals with the plasma-assisted CVD process. Thanks to the two-colour measuring method and the special wavelength, the measurement is minimally influenced by the plasma. Combined with the constant high resolution of < 0.1 K over the entire measuring range and the very high long-term stability, the device meets the requirements for the necessary high measuring accuracy. With the help of the through-the-lens sighting, laser pilot light or video camera, the pyrometer can be precisely aligned to the measuring point.

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The product

Special features:

  • Measuring range 500 to 1,400 °C
  • PA 485 AF 1: developed for measurement in the plasma-assisted CVD process
  • continuous light two-colour measurement process
  • no rotating filters
  • high long-term stability due to minimal self-heating
  • focusable lens for exact adjustment of the measuring distance
  • standard feature: analogue output and USB/RS 485 interface
CellaCrystal   PA 64 AF 2 /D   
Measuring   range   
500 –   1400 °C    
Focus   distance   
0,2 – 0,4   m    
Shape of   the measuring field   
Distance   ratio   
75 :   1    
PZ   20.08    
Measuring   principle   
Sighting   option   
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