KELLER Home » ITS » Temperature measurement » Stationary pyrometers » CellaCrystal PA » CellaCrystal PA 44
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Target sightingMeasuring rangeLensFocus areaDistance ratio
through-the-lenslaser spot lightvideo camera
750 - 2400 °CPZ 20.010.4 m - ∞150 : 1
PZ 20.030.2 - 0.4 m140 : 1
850 - 3000 °CPZ 20.010.4 m - ∞150 : 1

Stationary Pyrometers

Pyrometer CellaCrystal PA 44

PA SeitenansichtPA DurchblickPA LaserPA Kamera
The CellaCrystal PA 44 has been developed for optical temperature measurement during the growth of crystals. The calibration is specially adapted to the production of crystals. Combined with the constantly high resolution of < 0.1 K over the entire measuring range and the very high long-term stability, the instrument meets the requirements in terms of accuracy and stability. The pyrometer can be precisely aligned to the measuring point with the aid of the through-the-lens sighting, laser pilot light or video camera.
PGB-Nr.: ---
Mechanical accessories
Electrical accessories
Optical accessories


  • Range: 750 - 3000 °C
  • PA 44 AF 4 / 5  special calibration for the production of crystals
  • PA 44 AF 7 special calibration for the production of silicon carbide
  • Hybrid signal evaluation for high metrological resolution
  • High long-term stability due to minimal self-heating
  • Focusable optics allow for precice distance adjustment
  • Signal processing: analouge output and USB / RS485 interface

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