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AF26 Dual Channel Absorption Sensor |
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The model AF26 is a dual channel absorption sensor designed for inline applications. It accurately measures color or color changes and can be used in a variety of industrial processes, from sanitary CIP/SIP applications to high-pressure, high-temperature industrial applications. |
The AF26 sensor uses light in a range from 385 to 1000 nm at selected wavelengths. A precisely defined, constant light beam penetrates the process medium. The light beam is divided into two beams and passes through two specific interference filters at the application-dependent wavelengths. |
The attenuation of the light intensity, caused by absorption and/or scattering of the dissolved and undissolved substances, is detected by two hermetically-sealed silicon photo diodes. This dual channel absorption technology compensates for turbidity in the process stream and even the smallest presence of color can be measured. |
The single crystal sapphire optical window provides superior resistance to all abrasive and corrosive media. The AF26 comes with a broad variety of line sizes, process connections and wetted materials and can be adapted easily to the process. NIST-traceable validation accessories guarantee reliable testing of the sensor performance. Options for hazardous area classification are also available. |
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