The Optris CT P3 pyrometer is engineered with precision to accurately measure the temperature of thin plastic films. The pyrometers specialized spectral range of 3.43 µm ensures precise measurements within a broad temperature range, spanning from 50 °C to 400 °C.
Emissivity is a crucial factor in non-contact temperature measurement and must be considered based on various factors, including material properties and wavelength. Plastics thicker than 0.4 mm and pigmented films can be easily measured in the long-wavelength IR spectral range (8-14 μm) with emissivity of ≥ 0.9. However, very thin plastic films are transparent in this range, necessitating temperature measurement through material-specific absorption bands in the IR spectrum via narrow-band sensitive IR sensors. Materials like Polyethylene (PE), Polypropylene (PP), Cellophane, Polystyrene (PS), Polymethylmethacrylate or Acrylic (PMMA), Polycarbonate (PC), Polyester (PET), and Polyvinyl chloride (PVC or Vinyl) exhibit IR opaqueness at 3.43 μm, while polyester, polyurethane, Teflon, FEP, and polyamide exhibit this property at 7.9 μm.
The CT P3 infrared thermometer, with its extremely narrow-band spectral range of 3.43 μm, is ideal for measuring the temperature of very thin plastic materials. The infrared sensors temperature range spans from 50 °C to 400 °C, and it offers a rapid response time of 100 ms. The sensing head can withstand temperatures of up to 75 °C without requiring additional cooling. The separate electronics box is equipped with easily accessible programming buttons and a backlit LCD display.
The Optris CT P3 series infrared sensor emphasizes adaptability