A two-colour pyrometer produces very reliable temperature readings even when dust, steam or a dirty lens might significantly obstruct the instrument’s field of view. Even at signal attenuation of up to 90%, this two-colour technique yields highly accurate temperature data. An integrated dirty lens detection function indicates when the sight glass needs to be cleaned or too much sediment has accumulated in the field of view.

CellaTemp PA now also features two analogue outputs. Besides indicating the two-colour temperature reading, the pyrometer can simultaneously indicate another value such as the spectral (one-colour) temperature, the instrument’s internal temperature or the emissivity of the target spot.

Depending on the requirement of the specific application, CellaTemp PA comes factory-equipped with one of five different interchangeable lenses. By selecting a different lens, the basic instrument can easily adapt to a variety of measuring tasks: for target spots as small as 0.3 mm as well as for measuring distances up to 30 meters.

CellaTemp PA can be supplied with either through-the-lens sighting, laser sighting or a video camera featuring TBC (Target Brightness Control). The camera’s light sensitivity adapts dynamically to the brightness of the actual target object and produces a sharp image to be viewed from a control room monitor.

This multifunctional pyrometer offers numerous configuration options. For instance, the pyrometer can be custom-configured with an error correction factor or the transmittance of the protective lens can be applied to the temperature reading. Another new optional feature is ATD (automatic temperature detection) in discontinuous processes.

As a highly versatile two-colour pyrometer series, CellaTemp PA comprises 28 different mo-dels for temperatures ranging from 500 °C to 3000 °C. The instrument can be used for a wide variety of industrial applications in the steel industry, cement industry and furnace engineering. The ATD feature makes this pyrometer ideal for non-contact temperature monitoring of molten metal pour streams at foundries.