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The optek model AF26 is a dual channel absorption sensor designed to automate manual processes and offer increased control of in-line applications. It precisely measures color and/or concentrations using light at wavelengths of 380 to 1100 nm. The AF26 is constructed of SS 316 Ti and can accommodate sanitary CIP/SIP applications to extremely high-pressures (up to 325 bar), high process temperatures (up to 464 °F) meeting all hazardous area classifications. The optical windows are made of single crystal sapphire and provide superior resistance to all abrasive and corrosive media. The AF26 accepts NIST-traceable validation accessories that guarantee reliable and repeatable measurements.

Common applications include:

• CIP/SIP
• Chemical Concentration
• Chlorine / Chlorine Dioxide Concentration Measurement
• Water Disinfection

AF26 Features:

• Inline real time process monitoring
• Accurately measures color or color changes
• Turbidity independent by dual channel
• Extremely low maintenance
• CIP/SIP-compatible
• Broad variety of line sizes, process connections and wetted materials
• NIST-traceable validation accessories