Optical sensor, non
contact high temperature measurement,
The PYRO Optical pyrometer
temperature sensor for
non contact high
temperature measurement operates by allowing the operator to compare the intensity of light radiated from a target at visible .655µm wavelength to the known brightness of an internal calibrated lamp. This is achieved by utilizing a rotating optical photoscreenic wedge that functions as a variable neutral density filter. The
PYRO Optical pyrometer can achieve temperature
measurement accuracy to ± 0.5% of the temperature being observed.
Small target sizes from 0.055" at distances of 3" to infinity can be achieved. Supplementary magnification lenses for smaller targets at shorter distances are available. The "PYRO" Optical pyrometer features a circular direct reading scale on the instrument. Several models provide temperature scales in °F, °C or both. The PYRO Optical pyrometer units are constructed in a rugged steel housing providing years of trouble free industrial plant use. The PYRO Optical is a portable unit and comes complete with rechargeable NI CAD battery and carrying case.
The PYRO Optical
radiation pyrometer is used for many industrial applications
to measure non contact
optical sensor red scales can be provided for emissivity correction of targets with a 0.4 emissivity value. This is useful for temperature measurement of molten iron & steel. The PYRO Optical
pyrometer is calibrated at an effective wavelength of 0.655µm and is inherently less subject to most errors due to uncertain emissivity or extraneous reflected light than infrared or radiation thermometers.
The PYRO Optical
pyrometer is easy to use. The operator rotates the knurled photoscreenic wedge ring on the housing of the optical pyrometer while viewing the target. A color blend is made between the internal calibrated lamp through the instruments photoscreenic wedge and the target. The temperature
measurement is indicated on a direct reading scale on the housing of the instrument. The light viewed by the operator is monochromatic. Therefore, readings are not effected by an individuals color sensitivity.