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Navigator AW641 Silica Analyzer

Brand: ABB Group

Many years of experience and innovation in the design and successful application of continuous chemical analyzers has been combined with the latest electronics and production technologies to produce the Navigator 600 Series of analyzers from ABB.

Based on colorimetric techniques, they feature a liquid handling section carefully designed to reduce routine maintenance. 

Utilizing powerful electronics, advanced features such as automatic calibration, continuous sample analysis and programmable multi-stream switching ensure accurate measurement of silica.
Features
  • Analysis of up to 6 sample streams
  • Up to 90% lower reagent consumption than other silica analyzers
  • Labour-saving 5 minute annual maintenance and up to 3 months unattended operation
  • Automatic cleaning and calibration
  • True auto-zero compensates for sample color, turbidity and background silica in reagents
  • Intuitive software with full color graphical display
  • Data logging and graphical process trending
  • Full audit trail capability
  • Secure data archiving to SD Card

Specifications

Brand

Measurement Range

  • 0 to 5000 ppb SiO₂ (Min. Range 0 to 50 ppb)

Chemical Method

  • Molybdenum Blue

Sample Stream Options

  • Available as single-stream or multi-stream (2, 4 or 6 stream) configurations

Measurement Frequency

  • Continuous chemistry and measurement (Programmable sample rate for multi-stream)

Accuracy / Maximum Measured Error

  • ± 2 % of Reading or ± 0.5 ppb, whichever is greater over the Range 0 to 500 ppb
  • ± 5 % of Reading over the Range 500 to 5000 ppb

Repeatability

  • ± 2 % of Reading or ± 0.5 ppb, whichever is greater over the Range 0 to 500 ppb
  • ± 3 % of Reading over the Range 500 to 5000 ppb

Response Time

  • < 15 mins (90 % step change)
  • Minimum update time 12 mins for multi-stream configurations

Calibration

  • 2-Point, Automatic Calibration
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